Location of Denison, Iowa
|• Mayor||Pam Soseman|
|• Total||6.57 sq mi (17.02 km2)|
|• Land||6.54 sq mi (16.94 km2)|
|• Water||0.03 sq mi (0.08 km2)|
|Elevation||1,283 ft (391 m)|
| • Estimate |
|• Density||1,269/sq mi (489.9/km2)|
|Time zone||UTC-6 (Central (CST))|
|• Summer (DST)||UTC-5 (CDT)|
|GNIS feature ID||0455880|
Denison is located at (42.017187, −95.351124).
|Denison historical population|
|Source: "U.S. Census website". United States Census Bureau. Retrieved March 29, 2020.|
At the 2010 census there were 8,298 people, 2,816 households, and 1,866 families living in the city. The population density was 1,268.8 inhabitants per square mile (489.9/km2). There were 2,968 housing units at an average density of 453.8 per square mile (175.2/km2). The racial makeup of the city was 70.6% White, 2.3% African American, 0.6% Native American, 1.0% Asian, 0.2% Pacific Islander, 23.0% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 42.1%.
Of the 2,816 households 38.0% had children under the age of 18 living with them, 48.8% were married couples living together, 11.1% had a female householder with no husband present, 6.4% had a male householder with no wife present, and 33.7% were non-families. 28.1% of households were one person and 13.7% were one person aged 65 or older. The average household size was 2.75 and the average family size was 3.36.
The median age was 32.6 years. 29% of residents were under the age of 18; 11.3% were between the ages of 18 and 24; 24.5% were from 25 to 44; 21.3% were from 45 to 64; and 13.9% were 65 or older. The gender makeup of the city was 50.7% male and 49.3% female.
As of the census of 2000, there were 7,339 people, 2,674 households, and 1,756 families living in the city. The population density was 1,185.5 people per square mile (457.8/km²). There were 2,837 housing units at an average density of 458.3 per square mile (177.0/km²). The racial makeup as reported by the Census was 86.92% White, 1.59% African American, 0.45% Native American, 0.82% Asian, 0.01% Pacific Islander, 9.02% from other races, and 1.19% from two or more races. Hispanic or Latino of any race were 17.36% of the population.
Racial diversity in Dension has been increasing since the mid-1980s. According to a New York Times article, 20% of Denison's high-school age children were nonwhite in 2005, compared to approximately 50% of kindergarteners.
Of the 2,674 households 31.7% had children under the age of 18 living with them, 51.9% were married couples living together, 9.1% had a female householder with no husband present, and 34.3% were non-families. 28.9% of households were one person and 15.0% were one person aged 65 or older. The average household size was 2.53 and the average family size was 3.08.
The age distribution was26.0% under the age of 18, 11.2% from 18 to 24, 26.3% from 25 to 44, 19.3% from 45 to 64, and 17.2% 65 or older. The median age was 35 years. For every 100 females, there were 95.3 males. For every 100 females age 18 and over, there were 92.3 males.
The median household income was $33,187 and the median family income was $41,362. Males had a median income of $30,145 versus $20,538 for females. The per capita income for the city was $15,391. About 6.1% of families and 12.1% of the population were below the poverty line, including 9.7% of those under age 18 and 4.2% of those age 65 or over.
The Denison Mayor is the chief executive officer of the city and presiding officer of the city council. The Denison Mayor serves a 2-year term. The current mayor of Denison is Pam Soseman. (Elected: November 2019 | Term: December 31, 2021) 
Former Mayors of Denison:
- Jared Beymer
- Dan Leinen
- Brad Bonner
- Dennis Fineran
- Nathan Mahrt
- Ken Livingston
- Loren Schultz
- Don Stehr
- Ralph Borcherding
- Jerry Smithson
- Keith Duncan
Denison City Council members serve overlapping four-year terms. The council consists of one representative from each of the city's three wards, plus two at-large representatives.
The members of the Denison City Council are:
|NAME||WARD||ELECTION DATE||TERM EXPIRATION|
|David Loeschen||Ward 1||November 2017||12/31/2021|
|John Granzen Sr.||Ward 2||November 2019||12/31/2023|
|Corey Curnyn||Ward 3||November 2017||12/31/2021|
|Greg Miller||At Large||November 2019||12/31/2023|
|Jessica Garcia||At Large||November 2019||12/31/2021|
Denison's City Administrator is Terry Crawford.
The City of Denison is organized into the following departments: Administration, Public Works, Library, Aquatic Center, Fire Department, Police Department, and Conference Center.
The minutes and agenda for each city council meeting are available in advance on the city's website.
- Kyle Borland, NFL player
- Charles Congden Carpenter, naturalist and herpetologist
- Clarence Duncan Chamberlin, aviation pioneer
- James Perry Conner (1851–1924) five-term US Representative from 1900–1909
- Chuck Darling, member of 1956 Summer Olympics basketball gold medalists, First team All-American at University of Iowa
- Jim Garrison, New Orleans District Attorney who investigated Kennedy assassination conspiracy theories
- Arthur C. Greene (1881-1958), member of the Iowa House of Representatives
- James E. Hansen, head of NASA's Goddard Institute for Space Studies
- Donna Reed, Academy Award-winning actress; Donna Reed Foundation's headquarters are in Denison
- Brandon Scherff, offensive tackle for NFL's Washington Redskins
- L.M. Shaw (1848–1932) 17th Governor of Iowa and United States Secretary of the Treasury
National Register of Historic Places
- Carey House
- Clarence D. Chamberlin House
- Crawford County Courthouse
- Park Motel
- William A. McHenry House
- Yellow Smoke Park Bridge
Pulitzer Prize-winning author Dale Maharidge depicts a changing Denison in the early twenty-first century in his book Denison, Iowa: Searching for the Soul of America Through the Secrets of a Midwest Town. This book features photographs by Maharidge's photographic partner and fellow Pulitzer-winner, Michael Williamson.
- "US Gazetteer files 2010". United States Census Bureau. Archived from the original on January 12, 2012. Retrieved 2012-05-11.
- "U.S. Census website". United States Census Bureau. Retrieved May 11, 2012.
- "Population and Housing Unit Estimates". Retrieved August 25, 2019.
- "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved 2011-06-07.
- History of Western Iowa, Its Settlement and Growth. Western Publishing Company. 1882. pp. 470–471.
- Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off. pp. 104.
- 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. 63.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
- In This Small Town in Iowa the Future Speaks Spanish, September 14, 2005 on NYTimes.com. Accessed Nov 24, 2006.
- "American Legal Publishing - Online Library". Municipal Code of Denison, Iowa.
- "Chapter 15". Municipal Code of Denison, Iowa.
- "Powers and Duties". Municipal Code of Denison, Iowa. City of Denison, Iowa.
- "Locally Elected Officials". Retrieved May 4, 2020.
- "Number and Term of Council". Municipal Code of Denison, Iowa. City of Denison, Iowa. Retrieved April 21, 2014.
- "City Council Minutes". City of Denison, Iowa. Retrieved April 21, 2014.
- "CONNER, James Perry". Biographical Directory of the United States Congress. Retrieved March 19, 2011.
- Journal of the House of the General Assembly of the State of Iowa. Iowa General Assembly. 1959. pp. 1779, 1780.
- "Iowa Governor Leslie Mortier Shaw". National Governors Association. Retrieved August 2, 2011.
|Wikimedia Commons has media related to Denison, Iowa.|
- Official Denison City Website
- Denison Community Schools The Monarchs
- City Data Comprehensive Statistical Data and more about Denison, Iowa