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Woodbury County, Iowa facts for kids

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Woodbury County
Woodbury County Courthouse in Sioux City
Official seal of Woodbury County
Seal
Map of Iowa highlighting Woodbury County
Location within the U.S. state of Iowa
Map of the United States highlighting Iowa
Iowa's location within the U.S.
Country  United States
State  Iowa
Founded 1851
Named for Levi Woodbury
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 120.66/sq mi (46.588/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 4th

Woodbury County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 105,941, making it the sixth-most populous county in Iowa. The county seat is Sioux City.

Woodbury County is included in the Sioux City, IA-NE-SD Metropolitan Statistical Area.

History

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) also owns reservation land in Woodbury County.

Geography

TerracesBuffers
Terraces, conservation tillage and buffers save soil and improve water quality on this Woodbury County farm in 1999.

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. It is the third-largest county by area in Iowa.

Major highways

Adjacent counties

Demographics

Historical population
Census Pop.
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%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018
WoodburyCountyIowaPop2020
Population of Woodbury County from US census data

2020 census

The 2020 census recorded a population of 105,941 in the county, with a population density of 120.8749/sq mi (46.6701/km2). 90.93% of the population reported being of one race. 54.79% were non-Hispanic White, 4.91% were Black, 17.69% were Hispanic, 2.37% were Native American, 2.84% were Asian, 0.62% were Native Hawaiian or Pacific Islander and 16.77% were some other race or more than one race. There were 42,701 housing units, of which 39,904 were occupied.

2010 census

The 2010 census recorded a population of 102,172 in the county, with a population density of 117.062/sq mi (45.198/km2). There were 41,454 housing units, of which 39,052 were occupied.

Communities

Woodbury County vote
by party in presidential elections
Year Republican Democratic
2016 57.4% 24,627 37.5% 16,102
2012 48.5% 21,841 49.5% 22,302
2008 49.6% 22,219 49.1% 21,983
2004 50.8% 22,451 48.6% 21,455
2000 49.8% 18,864 46.7% 17,691
1996 43.7% 16,368 46.0% 17,224
1992 42.3% 18,148 40.6% 17,398
1988 47.9% 18,790 51.4% 20,153
1984 54.3% 23,002 44.7% 18,951
1980 54.4% 23,553 36.8% 15,930
1976 52.8% 22,853 45.4% 19,664
1972 57.3% 23,757 41.0% 16,974
1968 50.6% 21,159 43.7% 18,281
1964 39.2% 17,347 60.7% 26,841
1960 55.0% 26,832 44.9% 21,906

Cities

Unincorporated communities

Townships

  • Arlington
  • Banner
  • Concord
  • Floyd
  • Grange
  • Grant
  • Kedron
  • Lakeport
  • Liberty
  • Liston
  • Little Sioux
  • Miller
  • Morgan
  • Moville
  • Oto
  • Rock
  • Rutland
  • Sioux City
  • Sloan
  • Union
  • West Fork
  • Willow
  • Wolf Creek
  • Woodbury

Population ranking

The population ranking of the following table is based on the 2010 census of Woodbury County.

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Sioux City (partially in Plymouth County) City 82,684
2 Sergeant Bluff City 4,227
3 Moville City 1,618
4 Sloan City 973
5 Lawton City 908
6 Correctionville City 821
7 Anthon City 565
8 Pierson City 366
9 Salix City 363
10 Danbury City 348
11 Bronson City 322
12 Hornick City 225
13 Smithland City 224
14 Cushing City 220
15 Oto City 108
16 Climbing Hill CDP 97
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