Plymouth County, Iowa
|Founded||January 15, 1851|
|Largest city||Le Mars|
|• Total||864 sq mi (2,240 km2)|
|• Land||863 sq mi (2,240 km2)|
|• Water||0.8 sq mi (2 km2) 0.1%|
|• Density||30/sq mi (11/km2)|
|Time zone||UTC−6 (Central)|
|• Summer (DST)||UTC−5 (CDT)|
Plymouth County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 25,698. The county seat is Le Mars. Plymouth County was named after Plymouth, Massachusetts.
Plymouth County was formed on January 15, 1851. Settlement began in the county in 1856. In October 1859, the first courthouse was built in Melbourne, formerly located in the southeast quarter of section 34, Plymouth Township, about five to six miles due south of Merrill. The first public school opened its doors there with 32 pupils. In 1872 the county seat was moved to Le Mars and a courthouse and jail were built there in 1873. The present Plymouth County Courthouse was built in 1900 of red sandstone.
During the Great Depression, farmers in the county organized the Farmers Holiday Group, to keep farm products off the market until the desired price was met. A radical group among them abducted Judge Bradley from his court chamber and threatened to hang him in the front of the courthouse. Bradley was freed, but the governor ordered the national guard to Plymouth County and declared a state of emergency, which effectively ended the group.
According to the U.S. Census Bureau, the county has a total area of 864 square miles (2,240 km2), of which 863 square miles (2,240 km2) is land and 0.8 square miles (2.1 km2) (0.1%) is water. It is the fourth-largest county by area in Iowa.
- Sioux County (north)
- Cherokee County (east)
- Woodbury County (south)
- Union County, South Dakota (west)
|U.S. Decennial Census|
The 2020 census recorded a population of 25,698 in the county, with a population density of 29.7132/sq mi (11.47233/km2). 95.81% of the population reported being of one race. 84.80% were non-Hispanic White, 1.39% were Black, 5.82% were Hispanic, 0.34% were Native American, 0.45% were Asian, 0.46% were Native Hawaiian or Pacific Islander and 6.74% were some other race or more than one race. There were 10,818 housing units, of which 10,171 were occupied.
The 2010 census recorded a population of 24,986 in the county, with a population density of 28.9337/sq mi (11.17137/km2). There were 10,550 housing units, of which 9,875 were occupied.
As of the census of 2000, there were 24,849 people, 9,372 households, and 6,804 families in the county. The population density was 29 people per square mile (11/km2). There were 9,880 housing units at an average density of 11 per square mile (4/km2). The racial makeup of the county was 98.16% White, 0.29% Black or African American, 0.14% Native American, 0.27% Asian, 0.06% Pacific Islander, 0.46% from other races, and 0.62% from two or more races. 1.32% of the population were Hispanic or Latino of any race.
Of the 9,372 households 35.70% had children under the age of 18 living with them, 63.30% were married couples living together, 6.20% had a female householder with no husband present, and 27.40% were non-families. 24.00% of households were one person and 12.00% were one person aged 65 or older. The average household size was 2.61 and the average family size was 3.12.
The age distribution was 28.30% under the age of 18, 7.20% from 18 to 24, 26.40% from 25 to 44, 22.00% from 45 to 64, and 16.00% 65 or older. The median age was 38 years. For every 100 females there were 98.80 males. For every 100 females age 18 and over, there were 95.70 males.
The median household income was $41,638 and the median family income was $50,009. Males had a median income of $33,566 versus $22,558 for females. The per capita income for the county was $19,442. About 4.40% of families and 6.00% of the population were below the poverty line, including 6.70% of those under age 18 and 6.40% of those age 65 or over.
Points of interest
- Ralph Klemme, Iowa state legislator and farmer
- Jim Nicholson, Former Secretary of Veterans Affairs, Republican National Chairman and U.S. Ambassador to the Vatican
- Johnny Niggeling, Major league baseball pitcher
- Paul Rust, actor and comedian
- Thomas Starzl, innovator in organ transplant surgery
- Isaac S. Struble, Congressman (1883–1891) after whom Struble is named
- William Garner Waddel, South Dakota State Senator
- Union Center (Also known as "The U")
- West Le Mars
† county seat
|Rank||City/Town/etc.||Municipal type||Population (2020 Census)|
|1||† Le Mars||City||10,571|
|12||Sioux City (almost entirely in Woodbury County)||City||6 (85,797 total)|
- Plymouth County Courthouse
- National Register of Historic Places listings in Plymouth County, Iowa
- Plymouth Roller Milling Company
- Damnation (TV series)
- "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
- "Find a County". National Association of Counties. Retrieved June 7, 2011.
- Chicago and North Western Railway Company (1908). A History of the Origin of the Place Names Connected with the Chicago & North Western and Chicago, St. Paul, Minneapolis & Omaha Railways. p. 163.
- History of the Counties of Woodbury and Plymouth, Iowa. Chicago: A. Warner & Co. 1890. p. 434.
- "Historical Facts About Plymouth County". Retrieved November 29, 2012.
- "Martial Law at Le Mars". Dubuque Telegraph-Herald. April 28, 1933. p. 1. Retrieved November 29, 2012.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
- "U.S. Decennial Census". United States Census Bureau. Retrieved July 20, 2014.
- "Historical Census Browser". University of Virginia Library. Retrieved July 20, 2014.
- "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 20, 2014.
- "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 20, 2014.
- "State & County QuickFacts". United States Census Bureau. Archived from the original on February 5, 2016. Retrieved July 20, 2014.
- "Population & Housing Occupancy Status 2010". United States Census Bureau – American FactFinder. Retrieved June 1, 2011.[dead link]
- "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
- Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 27, 2018.
- The leading "other" candidate, Progressive Theodore Roosevelt, received 2,005 votes, while Socialist candidate Eugene Debs received 46 votes, Prohibition candidate Eugene Chafin received 28 votes.
|Wikimedia Commons has media related to Plymouth County, Iowa.|
- Plymouth County Iowa Official website