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Woodbury County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 105,941,[2] making it the sixth-most populous county in Iowa. The county seat is Sioux City.[3]
Woodbury County | |
|---|---|
 Woodbury County Courthouse in Sioux City | |
 Seal | |
 Location within the U.S. state of Iowa | |
 Iowa's location within the U.S. | |
| Coordinates: 42°23′29″N 96°03′03″W | |
| Country |  United States |
| State |  Iowa |
| Founded | 1851 |
| Named for | Levi Woodbury[1] |
| Seat | Sioux City |
| Largest city | Sioux City |
| Area | |
• Total | 878 sq mi (2,270 km2) |
| • Land | 872.59 sq mi (2,260.0 km2) |
| • Water | 4.79 sq mi (12.4 km2) 0.55% |
| Population (2020) | |
• Total | 105,941 |
| • Density | 120/sq mi (47/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 4th |
| Website | www |
Woodbury County is included in the Sioux City metropolitan area.[4]
Originally established in 1851 as Wahkaw County, the Iowa Legislature in 1853 changed the name to Woodbury County in honor of Levi Woodbury (1789–1851), a senator and governor of New Hampshire who served as a Supreme Court justice from 1844 until his death.
The first county seat of Wahkaw County was the now-extinct village of Thompsonville; when the Legislature changed the county name to Woodbury, the new county seat became Sergeant's Bluff (now Sergeant Bluff). The county seat was moved to Sioux City in 1856.
The Winnebago Tribe of Nebraska (Ho-Chunk) owns reservation land in Woodbury County.
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The county is on the western edge of Iowa, with its western border being the Missouri River.
According to the U.S. Census Bureau, the county has a total area of 878 square miles (2,270 km2), of which 873 square miles (2,260 km2) is land and 4.9 square miles (13 km2) (0.6%) is water.[5] It is the third-largest county by area in Iowa.
Major highways
Transit
- Sioux City Transit
- List of intercity bus stops in Iowa
Adjacent counties
- Plymouth County (north)
- Cherokee County (northeast)
- Ida County (east)
- Monona County (south)
- Thurston County, Nebraska (southwest)
- Dakota County, Nebraska (west)
- Union County, South Dakota (northwest)
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| Census | Pop. | Note | %± |
|---|---|---|---|
| 1860 | 1,119 | — | |
| 1870 | 6,172 | 451.6% | |
| 1880 | 14,996 | 143.0% | |
| 1890 | 55,632 | 271.0% | |
| 1900 | 54,610 | −1.8% | |
| 1910 | 67,616 | 23.8% | |
| 1920 | 92,171 | 36.3% | |
| 1930 | 101,669 | 10.3% | |
| 1940 | 103,627 | 1.9% | |
| 1950 | 103,917 | 0.3% | |
| 1960 | 107,849 | 3.8% | |
| 1970 | 103,052 | −4.4% | |
| 1980 | 100,884 | −2.1% | |
| 1990 | 98,276 | −2.6% | |
| 2000 | 103,877 | 5.7% | |
| 2010 | 102,172 | −1.6% | |
| 2020 | 105,941 | 3.7% | |
| 2023 (est.) | 105,951 | [6] | 0.0% |
| U.S. Decennial Census[7] 1790-1960[8] 1900-1990[9] 1990-2000[10] 2010-2018[11][12] 2022[11] | |||
2020 census
The 2020 census recorded a population of 105,941 in the county, with a population density of 120.8749/sq mi (46.67008/km2). 90.93% of the population reported being of one race. There were 42,701 housing units, of which 39,904 were occupied.[2]
| Race | Num. | Perc. |
|---|---|---|
| White (NH) | 72,237 | 68.2% |
| Black or African American (NH) | 5,076 | 4.8% |
| Native American (NH) | 1,893 | 1.8% |
| Asian (NH) | 2,957 | 2.8% |
| Pacific Islander (NH) | 651 | 0.61% |
| Other/Mixed (NH) | 4,381 | 4.14% |
| Hispanic or Latino | 18,746 | 17.7% |
2010 census
The 2010 census recorded a population of 102,172 in the county, with a population density of 117.062/sq mi (45.1980/km2). There were 41,454 housing units, of which 39,052 were occupied.[14]
2000 census
As of the census[15] of 2000, there were 103,877 people, 39,151 households, and 26,426 families residing in the county. The population density was 119 inhabitants per square mile (46/km2). There were 41,394 housing units at an average density of 47 per square mile (18/km2). The racial makeup of the county was 87.48% White, 2.02% Black or African American, 1.69% Native American, 2.41% Asian, 0.04% Pacific Islander, 4.37% from other races, and 1.99% from two or more races. 9.11% of the population were Hispanic or Latino of any race.
Of the 39,151 households, 34.00% had children under the age of 18 living with them, 51.90% were married couples living together, 11.30% had a female householder with no husband present, and 32.50% were non-families. 26.60% of households were one person and 11.20% were one person aged 65 or older. The average household size was 2.58 and the average family size was 3.13.
The age distribution was 27.30% under the age of 18, 10.20% from 18 to 24, 28.30% from 25 to 44, 20.80% from 45 to 64, and 13.40% 65 or older. The median age was 34 years. For every 100 females, there were 96.10 males. For every 100 females age 18 and over, there were 92.80 males.
The median household income was $38,509 and the median family income was $46,499. Males had a median income of $31,664 versus $22,599 for females. The per capita income for the county was $18,771. About 7.20% of families and 10.30% of the population were below the poverty line, including 13.60% of those under age 18 and 7.40% of those age 65 or over.
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For much of the second half of the 20th century, Woodbury County tilted Republican, albeit not as overwhelmingly as most of western Iowa. Between 1988 and 2012 Woodbury County was the quintessential swing county in Iowa. No candidate won it by more than 3.5% over that quarter-century. This was the only county in Iowa that Barack Obama won in 2012 that he failed to carry in 2008. However, in 2016, Woodbury County swung over dramatically to Donald Trump, who carried it by a 19 percent margin, the largest margin of victory since Lyndon Johnson's landslide election in 1964.
| Year | Republican | Democratic | Third party(ies) | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 2024 | 25,969 | 60.50% | 16,145 | 37.62% | 807 | 1.88% |
| 2020 | 25,736 | 56.73% | 18,704 | 41.23% | 922 | 2.03% |
| 2016 | 24,727 | 56.56% | 16,210 | 37.08% | 2,781 | 6.36% |
| 2012 | 21,841 | 48.52% | 22,302 | 49.54% | 876 | 1.95% |
| 2008 | 22,219 | 49.58% | 21,983 | 49.05% | 613 | 1.37% |
| 2004 | 22,451 | 50.80% | 21,455 | 48.55% | 289 | 0.65% |
| 2000 | 18,864 | 49.78% | 17,691 | 46.68% | 1,341 | 3.54% |
| 1996 | 16,368 | 43.69% | 17,224 | 45.97% | 3,872 | 10.34% |
| 1992 | 18,148 | 42.34% | 17,398 | 40.59% | 7,318 | 17.07% |
| 1988 | 18,790 | 47.90% | 20,153 | 51.38% | 282 | 0.72% |
| 1984 | 23,002 | 54.31% | 18,951 | 44.75% | 397 | 0.94% |
| 1980 | 23,553 | 54.43% | 15,930 | 36.81% | 3,792 | 8.76% |
| 1976 | 22,853 | 52.79% | 19,664 | 45.43% | 770 | 1.78% |
| 1972 | 23,757 | 57.34% | 16,974 | 40.97% | 699 | 1.69% |
| 1968 | 21,159 | 50.62% | 18,281 | 43.73% | 2,363 | 5.65% |
| 1964 | 17,347 | 39.23% | 26,841 | 60.70% | 30 | 0.07% |
| 1960 | 26,832 | 55.05% | 21,906 | 44.94% | 6 | 0.01% |
| 1956 | 25,399 | 55.89% | 19,997 | 44.00% | 49 | 0.11% |
| 1952 | 27,518 | 58.36% | 19,474 | 41.30% | 159 | 0.34% |
| 1948 | 16,655 | 42.61% | 22,056 | 56.43% | 373 | 0.95% |
| 1944 | 18,544 | 47.43% | 20,448 | 52.30% | 104 | 0.27% |
| 1940 | 22,832 | 48.19% | 24,457 | 51.62% | 89 | 0.19% |
| 1936 | 14,157 | 32.92% | 26,847 | 62.43% | 1,998 | 4.65% |
| 1932 | 12,764 | 31.97% | 26,397 | 66.12% | 761 | 1.91% |
| 1928 | 20,587 | 54.78% | 16,831 | 44.78% | 166 | 0.44% |
| 1924 | 16,639 | 47.38% | 5,676 | 16.16% | 12,804 | 36.46% |
| 1920 | 17,603 | 62.07% | 9,815 | 34.61% | 944 | 3.33% |
| 1916 | 5,735 | 38.61% | 8,819 | 59.38% | 299 | 2.01% |
| 1912 | 2,441 | 18.66% | 4,564 | 34.89% | 6,077 | 46.45% |
| 1908 | 6,587 | 53.52% | 5,222 | 42.43% | 498 | 4.05% |
| 1904 | 7,597 | 66.85% | 2,809 | 24.72% | 958 | 8.43% |
| 1900 | 7,045 | 57.54% | 4,796 | 39.17% | 402 | 3.28% |
| 1896 | 6,204 | 54.86% | 4,876 | 43.12% | 229 | 2.02% |
| 1892 | 4,620 | 47.07% | 4,156 | 42.34% | 1,040 | 10.59% |
| 1888 | 4,169 | 52.87% | 3,588 | 45.50% | 129 | 1.64% |
| 1884 | 2,789 | 53.78% | 2,380 | 45.89% | 17 | 0.33% |
| 1880 | 1,453 | 56.25% | 995 | 38.52% | 135 | 5.23% |
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Cities
Unincorporated communities
- Climbing Hill (a census-designated place)
- Discord
- Holly Springs
- Luton
- Midway
- Owego[17]
Townships
Population ranking
The population ranking of the following table is based on the 2020 census of Woodbury County.[2]
† county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | † Sioux City (partially in Plymouth County) | City | 85,791 (85,797 total) |
| 2 | Sergeant Bluff | City | 5,015 |
| 3 | Moville | City | 1,687 |
| 4 | Sloan | City | 1,042 |
| 5 | Lawton | City | 943 |
| 6 | Correctionville | City | 766 |
| 7 | Anthon | City | 545 |
| 8 | Pierson | City | 337 |
| 9 | Danbury | City | 320 |
| 10 | Salix | City | 295 |
| 11 | Bronson | City | 294 |
| 12 | Hornick | City | 255 |
| 13 | Cushing | City | 230 |
| 14 | Smithland | City | 181 |
| 15 | Climbing Hill | CDP | 97 |
| 16 | Oto | City | 72 |
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