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Woodbury County, Iowa facts for kids

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Woodbury County
U.S. 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 place in Iowa, a state in the United States. In 2020, about 105,941 people lived here. This makes it the sixth-biggest county in Iowa by population.

The main city, or 'county seat,' is Sioux City. Woodbury County is part of the larger Sioux City metropolitan area, which is like a big city region.

History of Woodbury County

Woodbury County started in 1851 with a different name: Wahkaw County. In 1853, the Iowa Legislature (which makes laws) changed its name. They named it after Levi Woodbury.

Levi Woodbury (1789–1851) was an important person. He was a senator and a governor of New Hampshire. He also worked as a Supreme Court justice from 1844 until he passed away.

The first main city of Wahkaw County was a village called Thompsonville, which no longer exists. When the county name changed to Woodbury, the new main city became Sergeant's Bluff. Today, this city is known as Sergeant Bluff. In 1856, the county's main city moved to Sioux City.

The Winnebago Tribe of Nebraska, also known as the Ho-Chunk people, owns land in Woodbury County. This land is part of their reservation.

Geography of Woodbury County

Woodbury County is located on the western side of Iowa. Its western border is the Missouri River.

The county covers about 878 square miles. Most of this area, about 873 square miles, is land. The rest, about 4.9 square miles, is water. This makes Woodbury County the third-largest county in Iowa by land area.

Main Roads in Woodbury County

  • I-29.svg Interstate 29
  • I-129.svg Interstate 129
  • US 20.svg U.S. Highway 20
  • US 75.svg U.S. Highway 75
  • US 77.svg U.S. Highway 77
  • Elongated circle 12.svg Iowa Highway 12
  • Elongated circle 31.svg Iowa Highway 31
  • Elongated circle 140.svg Iowa Highway 140
  • Elongated circle 141.svg Iowa Highway 141
  • Elongated circle 175.svg Iowa Highway 175

Public Transportation

  • Sioux City Transit
  • List of intercity bus stops in Iowa

Counties Next to Woodbury County

Population and People in Woodbury County

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%
2023 (est.) 105,951 3.7%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018 2022
WoodburyCountyIowaPop2020
Population of Woodbury County from US census data

2020 Census Information

WoodburyCountyIA2022PopPyr
2022 US Census population pyramid for Woodbury County from ACS 5-year estimates

The 2020 census counted 105,941 people in Woodbury County. This means there were about 121 people living per square mile. Most people (90.93%) said they belonged to one race.

There were 42,701 homes in the county, and 39,904 of them were lived in.

Woodbury County Racial Composition
Race Number of People Percentage
White (Not Hispanic) 72,237 68.2%
Black or African American (Not Hispanic) 5,076 4.8%
Native American (Not Hispanic) 1,893 1.8%
Asian (Not Hispanic) 2,957 2.8%
Pacific Islander (Not Hispanic) 651 0.61%
Other/Mixed (Not Hispanic) 4,381 4.14%
Hispanic or Latino 18,746 17.7%

Cities and Towns in Woodbury County

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

Cities

Unincorporated Communities

These are smaller places that are not officially cities or towns.

Townships

Townships are smaller areas within a county.

  • 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 of Communities (2020 Census)

This table shows how many people live in each city or town in Woodbury County, from largest to smallest.

† county seat

Rank City/Town/etc. 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

See also

Kids robot.svg In Spanish: Condado de Woodbury para niños

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