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Harrison County, Iowa facts for kids

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Harrison County
Harrison County Courthouse
Map of Iowa highlighting Harrison 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 William Henry Harrison
Seat Logan
Largest city Missouri Valley
Area
 • Total 702 sq mi (1,820 km2)
 • Land 697 sq mi (1,810 km2)
 • Water 4.8 sq mi (12 km2)  0.7%
Population
 (2020)
 • Total 14,582
 • Estimate 
(2023)
14,670 Increase
 • Density 20.772/sq mi (8.020/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 4th

Harrison County is a county in the state of Iowa, USA. It was created in 1851. The county is named after William Henry Harrison, who was the ninth US President.

In 2020, about 14,582 people lived here. The main town, or county seat, is Logan. Harrison County is part of the larger Omaha-Council Bluffs Metropolitan Area. This area includes parts of Nebraska and Iowa.

Exploring Harrison County's Land

Harrison County covers a total area of about 702 square miles. Most of this area, around 697 square miles, is land. The remaining 4.8 square miles, or 0.7%, is water.

Main Roads in the County

Several important roads run through Harrison County. These highways help people travel easily across the county and to other places.

  • I-29.svg Interstate 29
  • US 30.svg U.S. Highway 30
  • Elongated circle 37.svg Iowa Highway 37
  • Elongated circle 44.svg Iowa Highway 44
  • Elongated circle 127.svg Iowa Highway 127
  • Elongated circle 183.svg Iowa Highway 183
  • Elongated circle 191.svg Iowa Highway 191

Neighboring Counties

Harrison County shares its borders with several other counties.

Protected Natural Areas

Part of the DeSoto National Wildlife Refuge is located in Harrison County. This refuge is a special place that protects wildlife and their habitats.

Who Lives in Harrison County?

The number of people living in Harrison County has changed over the years.

Historical population
Census Pop.
1860 3,621
1870 8,931 146.6%
1880 16,649 86.4%
1890 21,356 28.3%
1900 25,597 19.9%
1910 23,162 −9.5%
1920 24,488 5.7%
1930 24,897 1.7%
1940 22,767 −8.6%
1950 19,560 −14.1%
1960 17,600 −10.0%
1970 16,240 −7.7%
1980 16,348 0.7%
1990 14,730 −9.9%
2000 15,666 6.4%
2010 14,928 −4.7%
2020 14,582 −2.3%
2023 (est.) 14,670 −1.7%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018
HarrisonCountyIowaPop2020
Population of Harrison County from US census data

Population in 2020

The 2020 census counted 14,582 people in Harrison County. This means there were about 20 people living per square mile. Most people, about 96.78%, said they belonged to one race. About 93.46% were non-Hispanic White. Other groups included Black (0.19%), Hispanic (2.01%), Native American (0.20%), and Asian (0.34%). A small number were Native Hawaiian or Pacific Islander (0.02%). About 3.78% were of another race or more than one race. There were 6,665 homes in the county, and 5,951 of them were lived in.

HarrisonCountyIA2022PopPyr
This chart shows the number of people in different age groups in Harrison County.

Towns and Communities

Harrison County has several cities and smaller communities.

Cities in Harrison County

Smaller Communities and Areas

Besides the cities, there are also smaller communities and areas called townships.

Townships in Harrison County

  • Allen
  • Boyer
  • Calhoun
  • Cass
  • Cincinnati
  • Clay
  • Douglas
  • Harrison
  • Jackson
  • Jefferson
  • La Grange
  • Lincoln
  • Little Sioux
  • Magnolia
  • Morgan
  • Raglan
  • St. Johns
  • Taylor
  • Union
  • Washington

Other Small Towns

These are smaller places that are not officially cities.

How Big Are the Towns?

Here's a list of the cities and towns in Harrison County, from largest to smallest, based on the 2020 census. The county seat, which is the main town.

Rank City/Town/etc. Type Population (2020 Census)
1 Missouri Valley City 2,678
2 Woodbine City 1,625
3 Logan City 1,397
4 Dunlap (partially in Crawford County) City 1,038 (1,038 total)
5 Mondamin City 339
6 Persia City 297
7 Modale City 273
8 Pisgah City 249
9 Magnolia City 190
10 Little Sioux City 166
11 California Junction CDP 74
12 River Sioux CDP 42

See also

Kids robot.svg In Spanish: Condado de Harrison (Iowa) para niños

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