Iowa County, Iowa

Iowa County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 16,662.[1] The county seat is Marengo.[2]

Iowa County
U.S. county
Iowa County Courthouse in Marengo
Location within the U.S. state of Iowa
Iowa's location within the U.S.
Coordinates: 41°41′10″N 92°04′01″W
Country United States
State Iowa
Founded1843
Named forIowa River
SeatMarengo
Largest cityWilliamsburg
Area
 • Total587 sq mi (1,520 km2)
 • Land586 sq mi (1,520 km2)
 • Water1.0 sq mi (3 km2)  0.2%
Population
 (2020)
 • Total16,662
 • Density28/sq mi (11/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district1st
Websitewww.co.iowa.ia.us

Iowa County is one of seven counties in the United States to share the same name as the state they are located in. The other six counties are Arkansas County, Hawaii County, Idaho County, New York County, Oklahoma County, and Utah County.[3]

History

Iowa County was formed on February 17, 1843. It was named for the Iowa River, which flows through the county.[4]

The first courthouse was a log cabin built in 1847. This was rented by the county until 1850 when a second courthouse was completed. In 1861 construction of a third courthouse was begun. The current courthouse was built in 1892 after the county had outgrown the previous one.[5]

Iowa County is home to the Amana Colonies, a group of settlements of German Pietists, comprising seven villages. Calling themselves the Ebenezer Society or the Community of True Inspiration (German: die Gemeinde der wahren Inspiration), they first settled in New York state near Buffalo in what is now West Seneca. However, in order to live out their beliefs in more isolated surroundings they moved west, to Iowa County in 1855, living a communal life until the mid-1930s. Today, Amana is a major tourist attraction known mainly for its restaurants and craft shops, and the colonies as a whole have been listed as a National Historic Landmark since 1965.

Geography

According to the U.S. Census Bureau, the county has a total area of 587 square miles (1,520 km2), of which 586 square miles (1,520 km2) is land and 1.0 square mile (2.6 km2) (0.2%) is water.[6]

The county is intersected by the Iowa River and the north fork of the English River.[7]

Major highways

Adjacent counties

Demographics
Historical population
CensusPop.%±
1850822—
18608,029876.8%
187016,644107.3%
188019,22115.5%
189018,270−4.9%
190019,5447.0%
191018,409−5.8%
192018,6001.0%
193017,332−6.8%
194017,016−1.8%
195015,835−6.9%
196016,3963.5%
197015,419−6.0%
198015,4290.1%
199014,630−5.2%
200015,6717.1%
201016,3554.4%
202016,6621.9%
U.S. Decennial Census[8]
1790-1960[9] 1900-1990[10]
1990-2000[11] 2010-2018[12]
Population of Iowa County from US census data

2020 census

The 2020 census recorded a population of 16,662 in the county, with a population density of 28.3911/sq mi (10.9619/km2). 96.24% of the population reported being of one race. 90.48% were non-Hispanic White, 0.67% were Black, 2.97% were Hispanic, 0.21% were Native American, 0.56% were Asian, 0.01% were Native Hawaiian or Pacific Islander and 5.10% were some other race or more than one race. There were 7,341 housing units, of which 6,811 were occupied.[1]

2010 census

The 2010 census recorded a population of 16,355 in the county, with a population density of 27.8881/sq mi (10.7677/km2). There were 7,258 housing units, of which 6,677 were occupied.[13]

2000 census
2000 Census age pyramid for Iowa County

As of the census[14] of 2000, there were 15,671 people, 6,163 households, and 4,301 families residing in the county. The population density was 27 people per square mile (10/km2). There were 6,545 housing units at an average density of 11 per square mile (4/km2). The racial makeup of the county was 98.70% White, 0.17% Black or African American, 0.06% Native American, 0.30% Asian, 0.03% Pacific Islander, 0.36% from other races, and 0.38% from two or more races. 0.97% of the population were Hispanic or Latino of any race.

There were 6,163 households, out of which 32.80% had children under the age of 18 living with them, 60.10% were married couples living together, 6.60% had a female householder with no husband present, and 30.20% were non-families. 25.90% of all households were made up of individuals, and 12.50% had someone living alone who was 65 years of age or older. The average household size was 2.50 and the average family size was 3.03.

In the county, the population was spread out, with 26.40% under the age of 18, 6.30% from 18 to 24, 27.80% from 25 to 44, 22.40% from 45 to 64, and 17.10% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 95.00 males. For every 100 females age 18 and over, there were 93.20 males.

The median income for a household in the county was $41,222, and the median income for a family was $48,946. Males had a median income of $31,220 versus $24,652 for females. The per capita income for the county was $18,884. About 3.40% of families and 5.00% of the population were below the poverty line, including 4.50% of those under age 18 and 5.40% of those age 65 or over.

Politics

In the 2008 US presidential election, a nearly equal number of Iowa County voters voted for each major candidate.[15]

Presidential elections results
Presidential elections results[16]
Year Republican Democratic Third parties
2020 61.7% 6,009 36.4% 3,547 1.9% 186
2016 58.5% 5,205 34.6% 3,084 6.9% 615
2012 51.5% 4,569 46.7% 4,144 1.7% 153
2008 49.0% 4,188 49.2% 4,202 1.9% 158
2004 53.8% 4,544 45.4% 3,841 0.8% 69
2000 52.5% 3,894 43.6% 3,230 3.9% 289
1996 43.2% 3,042 47.7% 3,354 9.1% 639
1992 38.1% 2,656 36.8% 2,560 25.1% 1,749
1988 48.6% 3,247 49.9% 3,338 1.5% 100
1984 60.0% 4,352 38.8% 2,815 1.2% 84
1980 55.2% 4,153 34.7% 2,606 10.2% 763
1976 53.0% 3,926 45.4% 3,367 1.6% 118
1972 60.3% 4,202 37.0% 2,578 2.6% 184
1968 58.1% 4,133 36.4% 2,586 5.5% 392
1964 39.8% 2,828 60.0% 4,261 0.2% 13
1960 63.5% 4,944 36.3% 2,828 0.2% 18
1956 62.7% 4,875 35.4% 2,753 1.9% 149
1952 67.3% 5,625 30.1% 2,514 2.7% 223
1948 52.4% 3,659 43.4% 3,030 4.1% 289
1944 53.9% 3,959 42.5% 3,119 3.6% 262
1940 55.3% 4,696 43.0% 3,649 1.7% 143
1936 43.6% 3,360 54.0% 4,163 2.5% 189
1932 35.0% 2,628 58.4% 4,376 6.6% 495
1928 56.9% 4,091 42.7% 3,075 0.4% 30
1924 51.9% 3,549 21.3% 1,458 26.8% 1,830
1920 69.9% 4,892 28.9% 2,019 1.2% 86
1916 57.9% 2,484 41.1% 1,763 1.0% 43
1912 30.8% 1,237 45.8% 1,841 23.5% 944
1908 52.6% 2,230 45.0% 1,907 2.5% 104
1904 52.8% 2,303 43.4% 1,891 3.8% 167
1900 52.7% 2,336 44.7% 1,983 2.6% 114
1896 53.8% 2,391 44.0% 1,956 2.2% 99

Communities

Cities

Census-designated places

Other unincorporated communities
  • Genoa Bluff
  • Koszta

Townships

Population ranking

The population ranking of the following table is based on the 2020 census of Iowa County.[1]

† county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Williamsburg City 3,346
2 † Marengo City 2,435
3 North English (partially in Keokuk County) City 1,065
4 Victor (partially in Poweshiek County) City 875
5 Middle Amana CDP 543
6 Amana CDP 388
7 Conroy CDP 252
8 Ladora City 229
9 Parnell City 194
10 South Amana CDP 165
11 West Amana CDP 140
t-12 Millersburg City 135
t-12 Homestead CDP 135
13 High Amana CDP 113
14 East Amana CDP 64

Education

The following public school districts have areas in Iowa County:

See also

References
  1. "2020 Census State Redistricting Data". census.gov. United states Census Bureau. Retrieved August 12, 2021.
  2. "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. Joseph Nathan Kane; Charles Curry Aiken (2005). The American Counties: Origins of County Names, Dates of Creation, and Population Data, 1950-2000. Scarecrow Press. ISBN 978-0-8108-5036-1.
  4. History
  5. Iowa County Archived July 20, 2008, at the Wayback Machine at Iowa State Association of Counties, retrieved July 26, 2008.
  6. "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  7. Ripley, George; Dana, Charles A., eds. (1879). "Iowa. II. An E. county of Iowa" . The American Cyclopædia.
  8. "U.S. Decennial Census". United States Census Bureau. Retrieved July 17, 2014.
  9. "Historical Census Browser". University of Virginia Library. Retrieved July 17, 2014.
  10. "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 17, 2014.
  11. "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 17, 2014.
  12. "State & County QuickFacts". United States Census Bureau. Archived from the original on June 7, 2011. Retrieved July 17, 2014.
  13. "Population & Housing Occupancy Status 2010". United States Census Bureau American FactFinder. Retrieved May 18, 2011.
  14. "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  15. Local and National Election Results - Election Center 2008 , accessed June 16, 2012.
  16. Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved April 26, 2018.

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