Women in the United States Senate

Rebecca Latimer Felton (D-Georgia), the first female member of the United States Senate, who served for a single day in 1922.

There have been 57 total women in the United States Senate since its establishment in 1789. The first woman who served as a U.S. senator, Rebecca Latimer Felton, represented Georgia for a single day in 1922. The first woman elected to the Senate was Hattie Caraway from Arkansas in 1932. Seventeen of the women who have served were appointed; seven of those were appointed to succeed their deceased husbands. The 116th Congress has 26 female senators, meaning for the first time in history, one-fourth of the members of the U.S. Senate are female. Of the 57 women in the U.S. Senate, 36 have been Democrats and 21 have been Republicans.

History

One woman (Barbara Mikulski) was re-elected and four women were elected to the Senate in 1992, the "Year of the Woman", L-R: Patty Murray, Carol Moseley-Braun, Mikulski, Dianne Feinstein, Barbara Boxer.

Eight women Senators meet in 1997. Left to right: Patty Murray, Susan Collins, Olympia Snowe, Carol Moseley-Braun, Kay Bailey Hutchison, Barbara Mikulski, Mary Landrieu, and Dianne Feinstein.

By the 111th United States Congress (2009–2011), the number of women Senators had increased to 17, including 4 Republicans and 13 Democrats

For its first 130 years in existence, the Senate's membership was entirely male. Until 1920, few women ran for the Senate. Until the 1990s, very few were elected. This paucity of women was due to many factors, including the lack of women's suffrage in many states until ratification of the Nineteenth Amendment to the United States Constitution, women's limited access to higher education until the mid-1900s, public perceptions of gender roles, and barriers to women's advancement such as sex discrimination.

The first woman in the U.S. Senate was Rebecca Latimer Felton, who served representing Georgia for only one day in 1922. Hattie Caraway became the first woman to win election to the Senate (Arkansas), in 1932. Margaret Chase Smith was the first woman to serve in both the House and Senate; she first served in the House, and began serving in the Senate in 1949. Margaret Chase Smith won her 1960 race for Senate in the nation's first ever race pitting two women (her and Lucia Cormier) against each other for a Senate seat. Muriel Humphrey Brown was the first and only Second Lady to serve in the United States Senate. After her husband, Hubert Humphrey, was defeated in the 1968 presidential election, he won back his old Senate seat from Minnesota. Following his unexpected death in office, Brown was appointed by the Governor of Minnesota in 1978 to fill her late husband's Senate seat. She served for less than one year, and did not seek reelection.

In 1978, Nancy Kassebaum became the first woman ever elected to a full term in the Senate without her husband having previously served in Congress. Since 1978, there has always been at least one woman in the Senate. The first woman to be elected to the Senate without any family connections was Paula Hawkins (R-FL), elected in 1980. There were still few women in the Senate near the end of the 20th century, long after women began to make up a significant portion of the membership of the House. The trend of few women in the Senate began to change in the wake of the Clarence Thomas Supreme Court nomination hearings, and the subsequent election of the 103rd United States Congress in 1992, which was dubbed the "Year of the Woman." In addition to Barbara Mikulski, who was reelected that year (1992), four women were elected to the Senate, all Democrats. They were Patty Murray of Washington, Carol Moseley Braun of Illinois, and Dianne Feinstein and Barbara Boxer, both of California. Carol Moseley Braun, who was African-American, was the first woman of color in the Senate. She was also the first woman to defeat an incumbent senator, winning the 1992 Democratic primary election over Alan Dixon. Later in 1992, Dianne Feinstein was the first woman to defeat an incumbent senator from a different party when she defeated John Seymour in a special election. Feinstein entered the Senate the same year as the first female Jewish senator.

Bathroom facilities for women in the Senate on the Senate Chamber level were first provided in 1992. Women were not allowed to wear pants on the Senate floor until 1993. In 1993, Senators Barbara Mikulski and Carol Moseley Braun wore pants onto the floor in defiance of the rule, and female support staff followed soon after, with the rule being amended later that year by Senate Sergeant-at-Arms Martha Pope to allow women to wear pants on the floor so long as they also wore a jacket.

The first time two female senators from the same state served concurrently was beginning in 1993; Dianne Feinstein and Barbara Boxer (both D-CA) were both elected in 1992, with Feinstein taking office that same year (as the result of a special election) and Boxer taking office in 1993 until 2016 when Boxer retired and Feinstein was joined by Kamala Harris. In June 1993, Kay Bailey Hutchison won a special election in Texas, and joined Kassebaum as a fellow female Republican senator. These additions significantly diminished the popular perception of the Senate as an exclusive "boys' club." Since 1992, there has been at least one new woman elected to the Senate every two years with the exception of the 2004 cycle (Lisa Murkowski was elected for the first time in 2004, but had been appointed to the seat since 2002). Since 2004, at least two new women have been elected to the Senate every two years, with the exception of 2010, when Kelly Ayotte of New Hampshire was the only new woman elected to the Senate.

Olympia Snowe arrived in the Senate in 1995, having previously served in the House of Representatives and both houses of the Maine state legislature. She and later Debbie Stabenow of Michigan and Kyrsten Sinema of Arizona are the only women to have served in both houses of a state legislature and both houses of the federal legislature. In 2000, Stabenow and Maria Cantwell became the first women to defeat incumbent elected senators in a general election, unseating Senators Spencer Abraham and Slade Gorton respectively. Hillary Clinton is the first and only First Lady to run for and/or to win a Senate seat. Clinton joined the Senate in 2001 and served until 2009 when she resigned to become the 67th United States Secretary of State under President Barack Obama, before becoming the first woman to receive a major party's nomination for president in 2016. She was replaced by Kirsten Gillibrand, who has been reelected three times and was herself a candidate for president in the 2020 Democratic Party presidential primaries.

In 2008, Kay Hagan became the first woman to unseat a female incumbent, Elizabeth Dole. Upon the opening of the 112th Congress in 2011, New Hampshire Democrat Jeanne Shaheen was joined by newly elected Republican Kelly Ayotte, making up the first Senate delegation of two women belonging to different parties. Barbara Mikulski became the longest-serving woman senator (and Congresswoman) in 2012; she retired in 2017 as still the longest-serving after serving for forty years.

In 2012, there was a second "Year of the Woman" with the election of five women and the reelection of six women. This beat the record of four new female Senators from 1992 and set the record of five new women and eleven female Senators in one Senate class. The five new women were Democrat Tammy Baldwin of Wisconsin, Republican Deb Fischer of Nebraska, Democrat Heidi Heitkamp of North Dakota, Democrat Mazie Hirono of Hawaii, and Democrat Elizabeth Warren of Massachusetts. The driving force behind the addition of four of the Senators elected was Patty Murray, herself elected in 1992, who led the Democratic Senatorial Campaign Committee to recruit Baldwin, Heitkamp, Hirono, and Warren, along with several other competitive candidates. Hirono was the first Asian-American woman and first Buddhist person in the Senate, and Baldwin was the first openly gay person in the Senate. With 14 years of experience in the House of Representatives, Baldwin held the highest seniority of her entering class of senators in 2012.

Joni Ernst became the first female combat veteran to serve in the Senate when she joined in 2015. In 2016, a record 15 women were their party's nominee for Senate, 12 of whom were truly competitive. Louisiana also had a female senatorial candidate, but she did not make the run-off. Catherine Cortez Masto was among those elected in 2016; she was the first Latina Senator. In a June 2016 primary election, as a result of California's recent establishment of the top-two primary, California Attorney General Kamala Harris and U.S. Representative Loretta Sanchez became the first women of the same party to advance to a Senate general election. In November 2016, Harris became the first woman to defeat a woman of the same party in a Senate general election. Jeanne Shaheen of New Hampshire and Maggie Hassan of New Hampshire hold the distinction of being the first and second women elected both governor and senator of a state; both served as Governor of New Hampshire and served together in the Senate starting in 2017.

In 2017 Tammy Duckworth became the first female double amputee in the U.S. Senate. On April 9, 2018, Duckworth gave birth to her daughter Maile Pearl, becoming the first incumbent Senator to give birth. Shortly afterward, rules were changed so that a Senator has the right to bring a child under one year old on the Senate floor and breastfeed them during votes. The day after those rules were changed, Maile became the first baby on the Senate floor when Duckworth brought her.

In 2018 Kyrsten Sinema defeated Martha McSally to become Arizona's first female senator, and the first openly bisexual senator from any state. Two weeks later, Arizona Governor Doug Ducey announced that he would appoint McSally to Arizona's other Senate seat, which was becoming vacant with the resignation of Jon Kyl. Sinema and McSally are the only concurrently serving female senators to have previously faced off against each other in a Senate election.

Cumulatively, 36 female U.S. senators have been Democrats, while 21 have been Republicans. As of 2019, no female U.S. senator has ever died in office, won election to the House after her Senate term, resigned from a state governorship for the purpose of a Senate appointment by her successor, also won election as an independent or to represent more than one state in non-consecutive elections, served both seats of a state at different times, switched parties, or represented a third party in her career.

Currently serving women U.S. senators

A map showing the genders of US senators by state.

  Two male senators

  One male and one female senator

  Two female senators

As of January 2020, there are 26 women serving in the United States Senate, 17 Democrats and 9 Republicans, the highest proportion of women serving as U.S. senators in history.

In January 2017, the number of serving women Senators reached a record of 21, 16 of whom were Democrats, and the other 5 being Republicans. Democratic Senators Barbara Mikulski and Barbara Boxer did not seek reelection in 2016, while four new Democratic senators were elected: Catherine Cortez Masto (Nevada), Tammy Duckworth (Illinois), Kamala Harris (California), and Maggie Hassan (New Hampshire). Incumbent Republican Senator Kelly Ayotte (New Hampshire) lost to Hassan. Both of the seats that changed hands from Republican to Democrat were won by women (Duckworth and Hassan); this was also the case in the 2018 Senate election (Rosen and Sinema).

In January 2018, after the appointment of Democrat Tina Smith of Minnesota to the U.S. Senate to fill the vacancy created by the resignation of Al Franken, and in April 2018 after the appointment of Republican Cindy Hyde-Smith of Mississippi to the U.S. Senate to fill the vacancy created by the resignation of Thad Cochran, the number of female Senators increased to 25, with 17 being Democrats and 8 being Republicans. In January 2020, Kelly Loeffler was appointed to the Senate from Georgia, increasing the number of women in the Senate to 26.

Currently, six states (Arizona, California, Minnesota, Nevada, New Hampshire and Washington) are represented by 2 women to the U.S. Senate. Eleven current female senators had previously served in the U.S. House of Representatives—a distinction long held by only Margaret Chase Smith—Senators Stabenow, Cantwell, Gillibrand, Baldwin, Hirono, Capito, Duckworth, Blackburn, Rosen, McSally, and Sinema.

Class	State	Name	Party	Prior experience	First took office	Born	Age when elected
3	Alaska	Lisa Murkowski	Republican	Alaska House of Representatives	2002	1957	45
1	Arizona	Kyrsten Sinema	Democratic	Arizona House of Representatives, Arizona Senate, U.S. House of Representatives	2019	1976	42
3	Arizona	Martha McSally	Republican	U.S. House of Representatives	2019	1966	52
1	California	Dianne Feinstein	Democratic	President of the San Francisco Board of Supervisors, Mayor of San Francisco, gubernatorial nominee	1992	1933	59
3	California	Kamala Harris	Democratic	District Attorney of San Francisco, Attorney General of California	2017	1964	53
3	Georgia	Kelly Loeffler	Republican	Businesswoman	2020	1970	49
1	Hawaii	Mazie Hirono	Democratic	Hawaii House of Representatives, Lieutenant Governor of Hawaii, gubernatorial nominee, U.S. House of Representatives	2013	1947	66
3	Illinois	Tammy Duckworth	Democratic	U.S. House of Representatives	2017	1968	49
2	Iowa	Joni Ernst	Republican	Montgomery County Auditor; Iowa Senate	2015	1970	45
2	Maine	Susan Collins	Republican	Deputy Massachusetts Treasurer; gubernatorial nominee	1997	1952	45
1	Massachusetts	Elizabeth Warren	Democratic	Special Advisor to the President for the Consumer Financial Protection Bureau	2013	1949	64
1	Michigan	Debbie Stabenow	Democratic	Michigan House of Representatives, Michigan Senate, U.S. House of Representatives	2001	1950	51
1	Minnesota	Amy Klobuchar	Democratic-Farmer-Labor	Hennepin County Attorney	2007	1960	47
2	Minnesota	Tina Smith	Democratic-Farmer-Labor	Lieutenant Governor of Minnesota	2018	1958	60
2	Mississippi	Cindy Hyde-Smith	Republican	Mississippi Senate, Mississippi Commissioner of Agriculture and Commerce	2018	1959	59
1	Nebraska	Deb Fischer	Republican	Nebraska Legislature	2013	1951	62
3	Nevada	Catherine Cortez Masto	Democratic	Nevada Attorney General	2017	1964	53
1	Nevada	Jacky Rosen	Democratic	U.S. House of Representatives	2019	1957	61
2	New Hampshire	Jeanne Shaheen	Democratic	New Hampshire Senate, Governor of New Hampshire	2009	1947	62
3	New Hampshire	Maggie Hassan	Democratic	New Hampshire Senate, Governor of New Hampshire	2017	1958	59
1	New York	Kirsten Gillibrand	Democratic	U.S. House of Representatives	2009	1966	43
1	Tennessee	Marsha Blackburn	Republican	Tennessee Senate, U.S. House of Representatives	2019	1952	66
3	Washington	Patty Murray	Democratic	Washington Senate	1993	1950	43
1	Washington	Maria Cantwell	Democratic	Washington House of Representatives, U.S. House of Representatives	2001	1958	43
2	West Virginia	Shelley Moore Capito	Republican	West Virginia House of Delegates, U.S. House of Representatives	2015	1953	62
1	Wisconsin	Tammy Baldwin	Democratic	Wisconsin State Assembly, U.S. House of Representatives	2013	1962	51

Election, selection and family

Before 2001, a plurality of women joined the U.S. Senate through appointment following the death or resignation of a husband or father who previously held the seat. An example is Muriel Humphrey (D-MN), the widow of former senator and Vice President Hubert Humphrey; she was appointed to fill his seat until a special election was held (in which she did not run). However, with the election of three women in 2000, the balance shifted; more women have now entered service as a senator by winning elections than by being appointed.

Recent examples of selection include Jean Carnahan and Lisa Murkowski. In 2000, Jean Carnahan (D-MO) was appointed to fill the Senate seat won by her recently deceased husband, Mel Carnahan. Carnahan—even though dead—defeated the incumbent senator, John Ashcroft. Carnahan's widow was named to fill his seat by Missouri Governor Roger Wilson until a special election was held. However, she lost the subsequent 2002 election to fill out the rest of the six-year term. In 2002, Lisa Murkowski (R-AK) was appointed by her father Alaska Governor Frank Murkowski, who had resigned from the Senate to become governor, to serve the remaining two years of his term. Lisa Murkowski defeated former governor Tony Knowles in her retention bid in 2004.

Two recent members of the Senate brought with them a combination of name recognition resulting from the political careers of their famous husbands and their own substantial experience in public affairs. The first, former senator Elizabeth Dole (R-NC), is married to former Senate Majority Leader and 1996 Republican presidential candidate Bob Dole and served as Secretary of Transportation under President Ronald Reagan and Secretary of Labor under President George H. W. Bush; she later ran a losing bid for the Republican presidential nomination in 2000. The other, former senator Hillary Clinton (D-NY), wife of former President Bill Clinton, was First Lady of the United States and First Lady of Arkansas before taking her seat in 2000. She too ran an unsuccessful campaign for her party's presidential nomination in 2008; she resigned in 2009 to become the secretary of state for the eventual victor of that election, Barack Obama. In 2016, she ran a successful campaign for her party's presidential nomination, eventually losing in the general election to Republican nominee Donald Trump.

Another famous name is Nancy Landon Kassebaum, the daughter of former Kansas governor and one-time presidential candidate Alf Landon. After retiring from the Senate, she married former senator Howard Baker (R-TN). Kassebaum has the distinction of being the first female elected senator who did not succeed her husband in Congress (Margaret Chase Smith was only elected to the Senate after succeeding her husband to his House seat). At the time of her retirement in 1997, Kassebaum was the second longest serving female senator, after Smith (Since 1997 five women have had Senate careers longer than Kassebaum's).

Firsts and onlies

The first woman in the Senate was Rebecca Latimer Felton, who served representing Georgia for only one day in 1922.

Hattie Caraway became the first woman to win election to the Senate (Arkansas), in 1932. Senator Margaret Chase Smith was the first woman to serve in both the House and Senate (she first served in the House, and began serving in the Senate in 1949), and she also won a 1960 race for Senate which was the nation's first ever race pitting two women (herself and Lucia Cormier) against each other for a Senate seat.

In 1978, Nancy Kassebaum became the first woman ever elected to a full term in the Senate without her husband having previously served in Congress. Muriel Humphrey Brown was the first and only Second Lady to serve in the United States Senate. After her husband, Hubert Humphrey, was defeated in the 1968 presidential election, he ran for his old Senate seat from Minnesota. Following his death, Brown was appointed by the Governor of Minnesota in 1978 to fill her late husband's Senate seat. She served for less than one year, and did not seek reelection.

The first woman to be elected to the Senate without any family connections was Paula Hawkins, elected in 1980. She was also the first and to date only female member of The Church of Jesus Christ of Latter-day Saints elected to the United States senate. In 1992, Dianne Feinstein was the first woman to defeat an incumbent senator from a different party when she defeated appointed Senator John Seymour in a special election. Feinstein entered the Senate in 1992 as the first female Jewish senator.

The first time two female U.S. senators from the same state served concurrently was beginning in 1993; Dianne Feinstein and Barbara Boxer (both D-CA) were both elected in 1992, with Feinstein taking office that same year (as the result of a special election) and Boxer taking office in 1993 until 2016 when Boxer retired and Feinstein was joined by Kamala Harris. In 1993 Carol Moseley Braun, who was African-American and had been elected the previous year, became the first woman of color in the Senate. She was also the first woman to defeat an incumbent senator, having toppled Senator Alan Dixon in the Democratic primary in 1992. Olympia Snowe arrived in the Senate in 1995, having previously served in the House of Representatives and both houses of the Maine state legislature. She and later Debbie Stabenow of Michigan and Kyrsten Sinema of Arizona are the only women to have served in both houses of a state legislature and both houses of the federal legislature. Susan Collins was elected in 1996 joining Olympia Snowe in representing Maine. This marked the first time a state was represented by two Republican women.

In 2000, Stabenow and Maria Cantwell became the first women to defeat incumbent elected senators in a general election, unseating Senators Spencer Abraham and Slade Gorton respectively. Hillary Clinton was the first and only First Lady to run for and win a United States Senate seat; she joined the Senate in 2001. She is also the only female U.S. senator (and only woman) to be the nominee of a major party for president of the United States, which occurred in 2016.

In 2008, Kay Hagan became the first woman to unseat a female incumbent, Elizabeth Dole. Upon the opening of the 112th Congress in 2011, New Hampshire Democrat Jeanne Shaheen was joined by newly elected Republican Kelly Ayotte, making the first female tandem senators that do not belong to the same party. Mazie Hirono, who joined the Senate in 2013, was the first Asian American woman and first Buddhist person in the Senate.

Tammy Baldwin, who joined the Senate in 2013, was the first and only openly gay person to serve in the United States Senate. Joni Ernst became the first female combat veteran to serve in the Senate when she joined in 2015. In 2016, Kamala Harris was the first woman to defeat another woman from the same party, U.S. Representative Loretta Sanchez, in a general election. In 2017 Tammy Duckworth became the first female double amputee in the Senate and Catherine Cortez Masto joined the Senate as its first Latina.

Jeanne Shaheen of New Hampshire and Maggie Hassan of New Hampshire hold the distinction of being the first and second women elected both Governor and U.S. senator of a state; both served as Governor of New Hampshire and served together in the Senate starting in 2017. Tammy Duckworth became the first woman to give birth while holding a senate seat in the United States in 2018. Duckworth gave birth to Maile Pearl on April 9, 2018. Shortly afterward, rules were changed so that a Senator has the right to bring a child under one year old on the Senate floor and breastfeed them during votes. The day after those rules were changed, Maile became the first baby on the Senate floor when Duckworth brought her.

List of states represented by women

This map shows which states have had a female senator via party.

  Democrat(s)

  Republican(s)

  Both a Democrat and a Republican

Number of female Senators by state:

•   1
•   2
•   3

Eight Democratic women senators appear at the 2008 Democratic Convention in Denver. It has become a tradition at Democratic conventions for incumbent women senators to appear on opening night.

32 states have been represented by female Senators, and 20 are currently represented. In 2009, North Carolina became the first state to have been represented by female Senators of both parties, and the first to have a female Senator succeeded by a female Senator from the other party. In 2011, New Hampshire became the second state to be represented by female Senators from both parties, and the first to have female Senators of both parties serving concurrently.

State	Current	Previous	Total
Alabama	0	2	2
Alaska	1	0	1
Arizona	2	0	2
Arkansas	0	2	2
California	2	1	3
Colorado	0	0	0
Connecticut	0	0	0
Delaware	0	0	0
Florida	0	1	1
Georgia	1	1	2
Hawaii	1	0	1
Idaho	0	0	0
Illinois	1	1	2
Indiana	0	0	0
Iowa	1	0	1
Kansas	0	2	2
Kentucky	0	0	0
Louisiana	0	3	3
Maine	1	2	3
Maryland	0	1	1
Massachusetts	1	0	1
Michigan	1	0	1
Minnesota	2	1	3
Mississippi	1	0	1
Missouri	0	2	2
Montana	0	0	0
Nebraska	1	2	3
Nevada	2	0	2
New Hampshire	2	1	3
New Jersey	0	0	0
New Mexico	0	0	0
New York	1	1	2
North Carolina	0	2	2
North Dakota	0	2	2
Ohio	0	0	0
Oklahoma	0	0	0
Oregon	0	1	1
Pennsylvania	0	0	0
Rhode Island	0	0	0
South Carolina	0	0	0
South Dakota	0	2	2
Tennessee	1	0	1
Texas	0	1	1
Utah	0	0	0
Vermont	0	0	0
Virginia	0	0	0
Washington	2	0	2
West Virginia	1	0	1
Wisconsin	1	0	1
Wyoming	0	0	0

List of female U.S. senators

Portrait	Name (lifespan)	State	Term start	Term end	Length of service (days)	Entered by	Left for	Party
	Rebecca Felton (1835–1930)	Georgia	November 21, 1922	November 22, 1922	1 (1 day)	Appointment	Appointment ended	Democratic
	Hattie Caraway (1878–1950)	Arkansas	December 9, 1931	January 3, 1945	4,774 (13 years, 25 days)	Appointment	Lost renomination	Democratic
	Rose Long (1892–1970)	Louisiana	January 31, 1936	January 3, 1937	338 (338 days)	Appointment	Appointment ended	Democratic
	Dixie Graves (1882–1965)	Alabama	August 20, 1937	January 10, 1938	143 (143 days)	Appointment	Appointment ended	Democratic
	Gladys Pyle (1890–1989)	South Dakota	November 9, 1938	January 3, 1939	55 (55 days)	Special election	Retired	Republican
	Vera C. Bushfield (1889–1976)	South Dakota	October 6, 1948	December 26, 1948	81 (81 days)	Appointment	Appointment ended	Republican
	Margaret Chase Smith (1897–1995)	Maine	January 3, 1949	January 3, 1973	8,766 (24 years, 0 days)	Election	Lost reelection	Republican
	Eva Bowring (1892–1985)	Nebraska	April 16, 1954	November 7, 1954	205 (205 days)	Appointment	Appointment ended	Republican
	Hazel Abel (1888–1966)	Nebraska	November 8, 1954	December 31, 1954	53 (53 days)	Special election	Retired and resigned early	Republican
	Maurine Neuberger (1907–2000)	Oregon	November 9, 1960	January 3, 1967	2,246 (6 years, 55 days)	Special election	Retired	Democratic
	Elaine Edwards (1929–2018)	Louisiana	August 1, 1972	November 13, 1972	104 (104 days)	Appointment	Appointment ended	Democratic
	Muriel Humphrey (1912–1998)	Minnesota	January 25, 1978	November 7, 1978	286 (286 days)	Appointment	Appointment ended	Democratic
	Maryon Allen (1925–2018)	Alabama	June 8, 1978	November 7, 1978	152 (152 days)	Appointment	Lost nomination to finish term	Democratic
	Nancy Kassebaum (born 1932)	Kansas	December 23, 1978	January 3, 1997	6,586 (18 years, 11 days)	Election	Retired	Republican
	Paula Hawkins (1927–2009)	Florida	January 1, 1981	January 3, 1987	2,193 (6 years, 2 days)	Election	Lost reelection	Republican
	Barbara Mikulski (born 1936)	Maryland	January 3, 1987	January 3, 2017	10,959 (30 years, 0 days)	Election	Retired	Democratic
	Jocelyn Burdick (1922–2019)	North Dakota	September 16, 1992	December 14, 1992	89 (89 days)	Appointment	Appointment ended	Democratic
	Dianne Feinstein (born 1933)	California	November 10, 1992	present	11,510 (31 years, 188 days)	Special election	Incumbent	Democratic
	Barbara Boxer (born 1940)	California	January 3, 1993	January 3, 2017	8,767 (24 years, 0 days)	Election	Retired	Democratic
	Carol Moseley-Braun (born 1947)	Illinois	January 3, 1993	January 3, 1999	2,191 (6 years, 0 days)	Election	Lost reelection	Democratic
	Patty Murray (born 1950)	Washington	January 3, 1993	present	11,456 (31 years, 134 days)	Election	Incumbent	Democratic
	Kay Hutchison (born 1943)	Texas	June 14, 1993	January 3, 2013	7,143 (19 years, 203 days)	Special election	Retired	Republican
	Olympia Snowe (born 1947)	Maine	January 3, 1995	January 3, 2013	6,576 (18 years, 0 days)	Election	Retired	Republican
	Sheila Frahm (born 1945)	Kansas	June 11, 1996	November 6, 1996	148 (148 days)	Appointment	Lost nomination to finish term	Republican
	Susan Collins (born 1952)	Maine	January 3, 1997	present	9,995 (27 years, 134 days)	Election	Incumbent	Republican
	Mary Landrieu (born 1955)	Louisiana	January 3, 1997	January 3, 2015	6,575 (18 years, 0 days)	Election	Lost reelection	Democratic
	Blanche Lincoln (born 1960)	Arkansas	January 3, 1999	January 3, 2011	4,383 (12 years, 0 days)	Election	Lost reelection	Democratic
	Maria Cantwell (born 1958)	Washington	January 3, 2001	present	8,534 (23 years, 134 days)	Election	Incumbent	Democratic
	Jean Carnahan (born 1933)	Missouri	January 3, 2001	November 25, 2002	691 (1 year, 326 days)	Appointment	Lost election to finish term	Democratic
	Hillary Clinton (born 1947)	New York	January 3, 2001	January 21, 2009	2,940 (8 years, 18 days)	Election	Resigned to become United States Secretary of State	Democratic
	Debbie Stabenow (born 1950)	Michigan	January 3, 2001	present	8,534 (23 years, 134 days)	Election	Incumbent	Democratic
	Lisa Murkowski (born 1957)	Alaska	December 20, 2002	present	7,818 (21 years, 148 days)	Appointment	Incumbent	Republican
	Elizabeth Dole (born 1936)	North Carolina	January 3, 2003	January 3, 2009	2,192 (6 years, 0 days)	Election	Lost reelection	Republican
	Amy Klobuchar (born 1960)	Minnesota	January 3, 2007	present	6,343 (17 years, 134 days)	Election	Incumbent	Democratic
	Claire McCaskill (born 1953)	Missouri	January 3, 2007	January 3, 2019	4,383 (12 years, 0 days)	Election	Lost reelection	Democratic
	Jeanne Shaheen (born 1947)	New Hampshire	January 3, 2009	present	5,612 (15 years, 134 days)	Election	Incumbent	Democratic
	Kay Hagan (1953–2019)	North Carolina	January 3, 2009	January 3, 2015	2,191 (6 years, 0 days)	Election	Lost reelection	Democratic
	Kirsten Gillibrand (born 1966)	New York	January 26, 2009	present	5,589 (15 years, 111 days)	Appointment	Incumbent	Democratic
	Kelly Ayotte (born 1968)	New Hampshire	January 3, 2011	January 3, 2017	2,192 (6 years, 0 days)	Election	Lost reelection	Republican
	Tammy Baldwin (born 1962)	Wisconsin	January 3, 2013	present	4,151 (11 years, 134 days)	Election	Incumbent	Democratic
	Deb Fischer (born 1951)	Nebraska	January 3, 2013	present	4,151 (11 years, 134 days)	Election	Incumbent	Republican
	Heidi Heitkamp (born 1955)	North Dakota	January 3, 2013	January 3, 2019	2,191 (6 years, 0 days)	Election	Lost reelection	Democratic
	Mazie Hirono (born 1947)	Hawaii	January 3, 2013	present	4,151 (11 years, 134 days)	Election	Incumbent	Democratic
	Elizabeth Warren (born 1949)	Massachusetts	January 3, 2013	present	4,151 (11 years, 134 days)	Election	Incumbent	Democratic
	Joni Ernst (born 1970)	Iowa	January 3, 2015	present	3,421 (9 years, 134 days)	Election	Incumbent	Republican
	Shelley Moore Capito (born 1953)	West Virginia	January 3, 2015	present	3,421 (9 years, 134 days)	Election	Incumbent	Republican
	Catherine Cortez Masto (born 1964)	Nevada	January 3, 2017	present	2,690 (7 years, 134 days)	Election	Incumbent	Democratic
	Tammy Duckworth (born 1968)	Illinois	January 3, 2017	present	2,690 (7 years, 134 days)	Election	Incumbent	Democratic
	Kamala Harris (born 1964)	California	January 3, 2017	present	2,690 (7 years, 134 days)	Election	Incumbent	Democratic
	Maggie Hassan (born 1958)	New Hampshire	January 3, 2017	present	2,690 (7 years, 134 days)	Election	Incumbent	Democratic
	Tina Smith (born 1958)	Minnesota	January 3, 2018	present	2,325 (6 years, 134 days)	Appointment	Incumbent	Democratic
	Cindy Hyde-Smith (born 1959)	Mississippi	April 9, 2018	present	2,229 (6 years, 37 days)	Appointment	Incumbent	Republican
	Marsha Blackburn (born 1952)	Tennessee	January 3, 2019	present	1,960 (5 years, 134 days)	Election	Incumbent	Republican
	Kyrsten Sinema (born 1976)	Arizona	January 3, 2019	present	1,960 (5 years, 134 days)	Election	Incumbent	Democratic
	Martha McSally (born 1966)	Arizona	January 3, 2019	present	1,960 (5 years, 134 days)	Appointment	Incumbent	Republican
	Jacky Rosen (born 1957)	Nevada	January 3, 2019	present	1,960 (5 years, 134 days)	Election	Incumbent	Democratic
	Kelly Loeffler (born 1970)	Georgia	January 6, 2020	present	1,592 (4 years, 131 days)	Appointment	Incumbent	Republican

Graphs

Histograph

Starting	Total	Graph
March 4, 1789	0
November 21, 1922	1	*
November 23, 1922	0
December 9, 1931	1	*
January 31, 1936	2	**
January 3, 1937	1	*
August 20, 1937	2	**
January 11, 1938	1	*
November 9, 1938	2	**
January 3, 1939	1	*
January 3, 1945	0
October 6, 1948	1	*
December 27, 1948	0
January 3, 1949	1	*
April 16, 1954	2	**
January 1, 1955	1	*
November 9, 1960	2	**
January 3, 1967	1	*
August 1, 1972	2	**
November 14, 1972	1	*
January 3, 1973	0
January 25, 1978	1	*
June 8, 1978	2	**
November 8, 1978	0
December 23, 1978	1	*
January 1, 1981	2	**
September 16, 1992	3	***
November 10, 1992	4	****
December 15, 1992	3	***
January 3, 1993	6	******
June 14, 1993	7	*******
January 3, 1995	8	********
June 11, 1996	9	*********
November 7, 1996	8	********
January 3, 1997	9	*********
January 3, 2001	13	*************
November 26, 2002	12	************
December 20, 2002	13	*************
January 3, 2003	14	**************
January 3, 2007	16	****************
January 3, 2009	17	*****************
January 22, 2009	16	****************
January 26, 2009	17	*****************
January 3, 2013	20	********************
January 3, 2017	21	*********************
January 3, 2018	22	**********************
April 9, 2018	23	***********************
January 3, 2019	25	*************************
January 6, 2020	26	**************************

Time series

Concurrently serving women from the same state

State	Start date	End date	Duration	Senior Senator		Junior Senator
California	January 3, 1993	present	11,456 days (31 years, 134 days)		Dianne Feinstein (D)		Barbara Boxer (D) (January 3, 1993 – January 3, 2017), 8,766 days (24 years, 0 days)
							Kamala Harris (D) (January 3, 2017 – present), 2,690 days (7 years, 134 days)
Kansas	June 11, 1996	November 6, 1996	148 days		Nancy Kassebaum (R)		Sheila Frahm (R)
Maine	January 3, 1997	January 3, 2013	5,844 days (16 years, 0 days)		Olympia Snowe (R)		Susan Collins (R)
Washington	January 3, 2001	present	8,534 days (23 years, 134 days)		Patty Murray (D)		Maria Cantwell (D)
New Hampshire	January 3, 2011	present	4,882 days (13 years, 134 days)		Jeanne Shaheen (D)		Kelly Ayotte (R) (January 3, 2011 – January 3, 2017), 2,192 days (6 years, 0 days)
							Maggie Hassan (D) (January 3, 2017 – present), 2,690 days (7 years, 134 days)
Minnesota	January 3, 2018	present	2,325 days (6 years, 134 days)		Amy Klobuchar (D)		Tina Smith (D)
Arizona	January 3, 2019	present	1,960 (5 years, 134 days)		Kyrsten Sinema (D)		Martha McSally (R)
Nevada	January 3, 2019	present	1,960 (5 years, 134 days)		Catherine Cortez Masto (D)		Jacky Rosen (D)

Pregnancies

Only one female member of the Senate has been pregnant during her tenure: Senator Tammy Duckworth, who gave birth on April 9, 2018.

See also

• Women in the United States House of Representatives
• Widow's succession
• List of female governors in the United States
• Party leaders of the United States Senate

External links

• U.S. Senate History: Women in the Senate
• "Women in the U.S. Senate 1922–2010" Center for American Women and Politics, Eagleton Institute of Politics, Rutgers, The State University of New Jersey
• Steinhauer, Jennifer (March 21, 2013). "Once Few, Women Hold More Power in Senate". The New York Times. Retrieved March 23, 2013.
• Maurer, Elizabeth. "Legislating History: 100 Years of Women in Congress". National Women's History Museum. 2017.