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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.
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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
 • 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 located in the U.S. state of Iowa. As of the 2020 census, the population was 14,582. The county seat is Logan. The county was formed in 1851. It was named for ninth US President William Henry Harrison.

Harrison County is included in the Omaha-Council Bluffs, NE-IA Metropolitan Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of 702 square miles (1,820 km2), of which 697 square miles (1,810 km2) is land and 4.8 square miles (12 km2) (0.7%) is water.

Major highways

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

Adjacent counties

National protected area

  • DeSoto National Wildlife Refuge (part)

Demographics

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%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018
HarrisonCountyIowaPop2020
Population of Harrison County from US census data

2020 census

The 2020 census recorded a population of 14,582 in the county, with a population density of 20.7512/sq mi (8.0121/km2). 96.78% of the population reported being of one race. 93.46% were non-Hispanic White, 0.19% were Black, 2.01% were Hispanic, 0.20% were Native American, 0.34% were Asian, 0.02% were Native Hawaiian or Pacific Islander and 3.78% were some other race or more than one race. There were 6,665 housing units, of which 5,951 were occupied.

2010 census

The 2010 census recorded a population of 14,928 in the county, with a population density of 21.4261/sq mi (8.2727/km2). There were 6,731 housing units, of which 5,987 were occupied.

Communities

Cities

Census-designated places

Population ranking

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

county seat

Rank City/Town/etc. Municipal type Population (2010 Census)
1 Missouri Valley City 2,838
2 Logan City 1,534
3 Woodbine City 1,459
4 Dunlap (partially in Crawford County) City 1,042
5 Mondamin City 402
6 Persia City 319
7 Modale City 283
8 Pisgah City 251
9 Magnolia City 183
10 Little Sioux City 170
11 California Junction CDP 85
12 River Sioux CDP 59
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