Jefferson County, Iowa facts for kids
Quick facts for kids
Jefferson County
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Courthouse in Fairfield is on the NRHP
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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 | January 21, 1839 |
| Named for | Thomas Jefferson |
| Seat | Fairfield |
| Largest city | Fairfield |
| Area | |
| • Total | 437 sq mi (1,130 km2) |
| • Land | 436 sq mi (1,130 km2) |
| • Water | 1.4 sq mi (4 km2) 0.3% |
| Population
(2020)
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| • Total | 15,663 |
| • Estimate
(2021)
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15,647 |
| • Density | 35.84/sq mi (13.839/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
| Website | https://jeffersoncounty.iowa.gov/ |
Jefferson County is a county located in the U.S. state of Iowa. As of the 2020 United States Census, the population was 15,663. The county seat is Fairfield. The county was formed in January 1839, and was named for U.S. President Thomas Jefferson.
Jefferson County comprises the Fairfield, IA Micropolitan Statistical Area.
Contents
Geography
According to the US Census Bureau, the county has a total area of 437 square miles (1,130 km2), of which 436 square miles (1,130 km2) is land and 1.4 square miles (3.6 km2) (0.3%) is water. The Skunk River flows southward through the NE part of the county, while the SW part of the county is drained by the nearby Des Moines River, which flows southeastward through Van Buren and Wapello counties.
Major highways
U.S. Highway 34
Iowa Highway 1
Iowa Highway 78
Transit
- List of intercity bus stops in Iowa
Adjacent counties
- Keokuk County − northwest
- Washington County − northeast
- Henry County − east
- Van Buren County − south
- Wapello County − west
Demographics
| Historical population | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1850 | 9,904 | — | |
| 1860 | 15,038 | 51.8% | |
| 1870 | 17,839 | 18.6% | |
| 1880 | 17,469 | −2.1% | |
| 1890 | 15,184 | −13.1% | |
| 1900 | 17,437 | 14.8% | |
| 1910 | 15,951 | −8.5% | |
| 1920 | 16,440 | 3.1% | |
| 1930 | 16,241 | −1.2% | |
| 1940 | 15,762 | −2.9% | |
| 1950 | 15,696 | −0.4% | |
| 1960 | 15,818 | 0.8% | |
| 1970 | 15,774 | −0.3% | |
| 1980 | 16,316 | 3.4% | |
| 1990 | 16,310 | 0.0% | |
| 2000 | 16,181 | −0.8% | |
| 2010 | 16,843 | 4.1% | |
| 2020 | 15,663 | −7.0% | |
| 2023 (est.) | 15,440 | −8.3% | |
| US Decennial Census 1790-1960 1900-1990 1990-2000 2010-2018 |
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2020 census
The 2020 census recorded a population of 15,663 in the county, with a population density of 35.9000/sq mi (13.8611/km2). There were 7,689 housing units, of which 6,902 were occupied.
| Race | Num. | Perc. |
|---|---|---|
| White (NH) | 13,425 | 85.71% |
| Black or African American (NH) | 409 | 2.61% |
| Native American (NH) | 43 | 0.27% |
| Asian (NH) | 500 | 3.2% |
| Pacific Islander (NH) | 9 | .06% |
| Other/Mixed (NH) | 667 | 4.3% |
| Hispanic or Latino | 610 | 4% |
2010 census
The 2010 census recorded a population of 16,843 in the county, with a population density of 38.6893/sq mi (14.9380/km2). There were 7,594 housing units, of which 6,846 were occupied.
Communities
Cities
Unincorporated communities
- Abingdon
- Beckwith
- East Pleasant Plain
- Germanville
- Glasgow
- Perlee
- Salina
Townships
- Black Hawk
- Buchanan
- Cedar
- Center
- Des Moines
- Liberty
- Lockridge
- Locust Grove
- Penn
- Polk
- Round Prairie
- Walnut
Population ranking
The population ranking of the following table is based on the 2020 census of Jefferson County.
† county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | † Fairfield | City | 9,416 |
| 2 | Batavia | City | 430 |
| 3 | Maharishi Vedic City | City | 277 |
| 4 | Libertyville | City | 274 |
| 5 | Lockridge | City | 244 |
| 6 | Packwood | City | 183 |
| 7 | Pleasant Plain | City | 84 |
| 8 | Coppock (mostly in Henry and Washington Counties) | City | 36 |
See also
In Spanish: Condado de Jefferson (Iowa) para niños
