Iowa County, Iowa facts for kids
Quick facts for kids
Iowa County
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Iowa County Courthouse in Marengo
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Location within the U.S. state of Iowa
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 Iowa's location within the U.S. |
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| Country |  United States |
| State |  Iowa |
| Founded | 1843 |
| Named for | Iowa River |
| Seat | Marengo |
| Largest city | Williamsburg |
| Area | |
| • Total | 587 sq mi (1,520 km2) |
| • Land | 586 sq mi (1,520 km2) |
| • Water | 1.0 sq mi (3 km2) 0.2% |
| Population
(2020)
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| • Total | 16,662 |
| • Density | 28.385/sq mi (10.960/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
Iowa County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 16,662. The county seat is Marengo.
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.
Contents
History
Iowa County was formed on February 17, 1843. It was named for the Iowa River, which flows through the county.
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.
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.
The county is intersected by the Iowa River and the north fork of the English River.
Major highways
Interstate 80
U.S. Highway 6
U.S. Highway 151
Iowa Highway 21
Iowa Highway 149
Iowa Highway 220
Iowa Highway 212
Adjacent counties
- Benton County (north)
- Linn County (northeast)
- Johnson County (east)
- Washington County (southeast)
- Keokuk County (south)
- Poweshiek County (west)
- Tama County (northwest)
Demographics
| Historical population | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1850 | 822 | — | |
| 1860 | 8,029 | 876.8% | |
| 1870 | 16,644 | 107.3% | |
| 1880 | 19,221 | 15.5% | |
| 1890 | 18,270 | −4.9% | |
| 1900 | 19,544 | 7.0% | |
| 1910 | 18,409 | −5.8% | |
| 1920 | 18,600 | 1.0% | |
| 1930 | 17,332 | −6.8% | |
| 1940 | 17,016 | −1.8% | |
| 1950 | 15,835 | −6.9% | |
| 1960 | 16,396 | 3.5% | |
| 1970 | 15,419 | −6.0% | |
| 1980 | 15,429 | 0.1% | |
| 1990 | 14,630 | −5.2% | |
| 2000 | 15,671 | 7.1% | |
| 2010 | 16,355 | 4.4% | |
| 2020 | 16,662 | 1.9% | |
| 2023 (est.) | 16,381 | 0.2% | |
| U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2018 |
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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.
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.
Communities
Cities
Census-designated places
Other unincorporated communities
- Genoa Bluff
- Koszta
Townships
- English
- Greene
- Hartford
- Hilton
- Iowa
- Lincoln
- Marengo
- Pilot
- Sumner
- Troy
- Washington
- York
- New Liberty
Population ranking
The population ranking of the following table is based on the 2020 census of Iowa County.
† 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:
- Belle Plaine Community School District, Belle Plaine
- Benton Community School District, Van Horne
- Clear Creek–Amana Community School District, Oxford
- English Valleys Community School District, North English
- H-L-V Community School District, Victor
- Iowa Valley Community School District, Marengo
- Williamsburg Community School District, Williamsburg
See also
In Spanish: Condado de Iowa (Iowa) para niños
