Warren County
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New courthouse under construction as of Dec 2021
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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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| Coordinates: 41°20′N 93°34′W / 41.33°N 93.56°W / 41.33; -93.56 | |
| Country |  United States |
| State |  Iowa |
| Founded | 1846 |
| Named for | Joseph Warren |
| Seat | Indianola |
| Largest city | Indianola |
| Area | |
| • Total | 573 sq mi (1,480 km2) |
| • Land | 570 sq mi (1,500 km2) |
| • Water | 3.5 sq mi (9 km2) 0.6% |
| Population
(2020)
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| • Total | 52,403 |
| • Density | 91/sq mi (35/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
| Website | www |
Warren County is a county located in the U.S. stateofIowa. As of the 2020 census, the population was 52,403.[1] The county seatisIndianola.[2]
Warren County is included in the Des Moines–West Des Moines, IA Metropolitan Statistical Area.[3]
Warren County was formed in 1846. It was named after General Joseph Warren, a hero in the American Revolutionary War.[4] The present Warren County Court House was opened in 1939.[5]
According to the U.S. Census Bureau, the county has a total area of 573 square miles (1,480 km2), of which 570 square miles (1,500 km2) is land and 3.5 square miles (9.1 km2) (0.6%) is water.[6]
U.S. Highway 65
U.S. Highway 69
Iowa Highway 5
Iowa Highway 28
Iowa Highway 92
Iowa Highway 316| Census | Pop. | Note | %± |
|---|---|---|---|
| 1850 | 961 | — | |
| 1860 | 10,281 | 969.8% | |
| 1870 | 17,980 | 74.9% | |
| 1880 | 19,578 | 8.9% | |
| 1890 | 18,269 | −6.7% | |
| 1900 | 20,376 | 11.5% | |
| 1910 | 18,194 | −10.7% | |
| 1920 | 18,047 | −0.8% | |
| 1930 | 17,700 | −1.9% | |
| 1940 | 17,695 | 0.0% | |
| 1950 | 17,758 | 0.4% | |
| 1960 | 20,829 | 17.3% | |
| 1970 | 27,432 | 31.7% | |
| 1980 | 34,878 | 27.1% | |
| 1990 | 36,033 | 3.3% | |
| 2000 | 40,671 | 12.9% | |
| 2010 | 46,225 | 13.7% | |
| 2020 | 52,403 | 13.4% | |
| 2023 (est.) | 55,205 | [7] | 5.3% |
| U.S. Decennial Census[8] 1790-1960[9] 1900-1990[10] 1990-2000[11] 2010-2018[12] | |||
The 2020 census recorded a population of 52,403 in the county, with a population density of 91.7049/sq mi (35.4075/km2). 95.46% of the population reported being of one race. There were 20,857 housing units, of which 19,616 were occupied.[1]
| Race | Num. | Perc. |
|---|---|---|
| White (NH) | 47,897 | 91.4% |
| Black or African American (NH) | 452 | 0.9% |
| Native American (NH) | 80 | 0.2% |
| Asian (NH) | 380 | 0.73% |
| Pacific Islander (NH) | 17 | 0.03% |
| Other/Mixed (NH) | 1,919 | 3.7% |
| HispanicorLatino | 1,658 | 3.2% |
The 2010 census recorded a population of 46,225 in the county, with a population density of 80.8638/sq mi (31.2217/km2). There were 18,371 housing units, of which 17,262 were occupied.[14]
At the 2000 census there were 40,671 people, 14,708 households, and 11,207 families in the county. The population density was 71 inhabitants per square mile (27/km2). There were 15,289 housing units at an average density of 27 per square mile (10/km2). The racial makeup of the county was 98.08% White, 0.27% BlackorAfrican American, 0.17% Native American, 0.38% Asian, 0.04% Pacific Islander, 0.29% from other races, and 0.76% from two or more races. 1.08%.[15] were HispanicorLatino of any race.
Of the 14,708 households 37.80% had children under the age of 18 living with them, 64.50% were married couples living together, 8.80% had a female householder with no husband present, and 23.80% were non-families. 19.90% of households were one person and 8.70% were one person aged 65 or older. The average household size was 2.65 and the average family size was 3.05.
The age distribution was 27.00% under the age of 18, 9.70% from 18 to 24, 28.20% from 25 to 44, 23.20% from 45 to 64, and 11.80% 65 or older. The median age was 36 years. For every 100 females, there were 94.60 males. For every 100 females age 18 and over, there were 91.80 males.
The median household income was $50,349 and the median family income was $56,344. Males had a median income of $36,983 versus $26,768 for females. The per capita income for the county was $20,558. About 3.70% of families and 5.10% of the population were below the poverty line, including 6.40% of those under age 18 and 5.20% of those age 65 or over.
Warren County has sixteen townships:[19]
The population ranking of the following table is based on the 2020 census of Warren County.[1]
† county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | Des Moines (mostly in Polk County) | City | 214,133 |
| 2 | West Des Moines (partially in Dallas and Polk Counties) | City | 68,723 |
| 3 | † Indianola | City | 15,833 |
| 4 | Norwalk (partially in Polk County) | City | 12,799 |
| 5 | Carlisle (partially in Polk County) | City | 4,160 |
| 6 | Milo | City | 778 |
| 7 | Hartford | City | 733 |
| 8 | New Virginia | City | 498 |
| 9 | Cumming | City | 436 |
| 10 | Martensdale | City | 421 |
| 11 | Lacona | City | 345 |
| 12 | Ackworth | City | 115 |
| 13 | St. Marys | City | 108 |
| 14 | Spring Hill | City | 68 |
| 15 | Sandyville | City | 58 |
| 16 | Bevington (partially in Madison County) | City | 57 |
| Year | Republican | Democratic | Third party | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 2020 | 17,782 | 57.29% | 12,574 | 40.51% | 683 | 2.20% |
| 2016 | 14,814 | 54.26% | 10,411 | 38.14% | 2,075 | 7.60% |
| 2012 | 13,052 | 50.06% | 12,551 | 48.14% | 469 | 1.80% |
| 2008 | 12,144 | 48.79% | 12,299 | 49.42% | 446 | 1.79% |
| 2004 | 12,160 | 52.75% | 10,730 | 46.54% | 163 | 0.71% |
| 2000 | 9,621 | 48.95% | 9,521 | 48.45% | 511 | 2.60% |
| 1996 | 6,905 | 39.52% | 9,120 | 52.20% | 1,447 | 8.28% |
| 1992 | 7,242 | 37.80% | 8,612 | 44.95% | 3,303 | 17.24% |
| 1988 | 6,424 | 39.82% | 9,627 | 59.68% | 80 | 0.50% |
| 1984 | 8,277 | 49.95% | 8,171 | 49.31% | 122 | 0.74% |
| 1980 | 7,360 | 47.43% | 6,610 | 42.59% | 1,549 | 9.98% |
| 1976 | 6,099 | 43.23% | 7,653 | 54.25% | 356 | 2.52% |
| 1972 | 7,332 | 57.26% | 5,143 | 40.17% | 329 | 2.57% |
| 1968 | 5,619 | 50.30% | 4,613 | 41.29% | 939 | 8.41% |
| 1964 | 3,679 | 35.54% | 6,639 | 64.14% | 33 | 0.32% |
| 1960 | 6,013 | 59.25% | 4,136 | 40.75% | 0 | 0.00% |
| 1956 | 5,430 | 59.19% | 3,729 | 40.65% | 15 | 0.16% |
| 1952 | 5,911 | 65.55% | 3,042 | 33.74% | 64 | 0.71% |
| 1948 | 3,876 | 50.97% | 3,481 | 45.77% | 248 | 3.26% |
| 1944 | 4,266 | 55.83% | 3,319 | 43.44% | 56 | 0.73% |
| 1940 | 5,016 | 56.21% | 3,856 | 43.21% | 51 | 0.57% |
| 1936 | 4,642 | 52.72% | 4,011 | 45.55% | 152 | 1.73% |
| 1932 | 3,725 | 50.28% | 3,542 | 47.81% | 141 | 1.90% |
| 1928 | 5,294 | 69.74% | 2,239 | 29.50% | 58 | 0.76% |
| 1924 | 4,683 | 62.08% | 1,274 | 16.89% | 1,586 | 21.03% |
| 1920 | 5,323 | 70.51% | 2,066 | 27.37% | 160 | 2.12% |
| 1916 | 2,182 | 52.21% | 1,910 | 45.70% | 87 | 2.08% |
| 1912 | 1,386 | 34.21% | 1,396 | 34.46% | 1,269 | 31.33% |
| 1908 | 2,589 | 58.59% | 1,645 | 37.23% | 185 | 4.19% |
| 1904 | 2,938 | 66.20% | 1,191 | 26.84% | 309 | 6.96% |
| 1900 | 2,966 | 59.15% | 1,876 | 37.42% | 172 | 3.43% |
| 1896 | 2,826 | 55.27% | 2,214 | 43.30% | 73 | 1.43% |
Places adjacent to Warren County, Iowa
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Municipalities and communities of Warren County, Iowa, United States
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| Unincorporated communities |
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| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
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41°20′N 93°34′W / 41.33°N 93.56°W / 41.33; -93.56
