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Hamilton County, Iowa facts for kids

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Hamilton County
Hamilton County Courthouse
Hamilton County Courthouse
Map of Iowa highlighting Hamilton 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 1856
Named for William W. Hamilton
Seat Webster City
Largest city Webster City
Area
 • Total 578 sq mi (1,500 km2)
 • Land 577 sq mi (1,490 km2)
 • Water 0.8 sq mi (2 km2)  0.1%
Population
 (2020)
 • Total 15,039
 • Estimate 
(2023)
14,729 Decrease
 • Density 26.019/sq mi (10.046/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 4th

Hamilton County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 15,039. The county seat is Webster City. The county was named to honor William W. Hamilton, a President of the Iowa State Senate.

Geography

According to the U.S. Census Bureau, the county has a total area of 578 square miles (1,500 km2), of which 577 square miles (1,490 km2) is land and 0.8 square miles (2.1 km2) (0.1%) is water. The largest body of water is Little Wall Lake.

Major highways

  • I-35.svg Interstate 35
  • US 20.svg U.S. Highway 20
  • US 69.svg U.S. Highway 69
  • Elongated circle 17.svg Iowa Highway 17
  • Elongated circle 175.svg Iowa Highway 175

Transit

  • List of intercity bus stops in Iowa

Adjacent counties

Demographics

Historical population
Census Pop.
1860 1,699
1870 6,055 256.4%
1880 11,252 85.8%
1890 15,319 36.1%
1900 19,514 27.4%
1910 19,242 −1.4%
1920 19,531 1.5%
1930 20,978 7.4%
1940 19,922 −5.0%
1950 19,660 −1.3%
1960 20,032 1.9%
1970 18,383 −8.2%
1980 17,862 −2.8%
1990 16,071 −10.0%
2000 16,438 2.3%
2010 15,673 −4.7%
2020 15,039 −4.0%
2023 (est.) 14,729 −6.0%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2018
HamiltonCountyIowaPop2020
Population of Hamilton County from US census data

2020 census

HamiltonCountyIA2022PopPyr
2022 US Census population pyramid for Hamilton County from ACS 5-year estimates

The 2020 census recorded a population of 15,039 in the county, with a population density of 25.9672/sq mi (10.0260/km2). 94.75% of the population reported being of one race. There were 7,037 housing units, of which 6,283 were occupied.

Hamilton County Racial Composition
Race Num. Perc.
White (NH) 12,702 84.46%
Black or African American (NH) 88 0.6%
Native American (NH) 25 0.16%
Asian (NH) 314 2.1%
Pacific Islander (NH) 0 0%
Other/Mixed (NH) 445 3%
Hispanic or Latino 1,465 9.74%

2010 census

The 2010 census recorded a population of 15,673 in the county, with a population density of 27.1780/sq mi (10.4935/km2). There were 7,219 housing units, of which 6,540 were occupied.

Communities

Cities

Unincorporated communities

  • Homer

Townships

Source:

  • Blairsburg
  • Fremont
  • Cass
  • Williams
  • Freedom
  • Independence
  • Rose Grove
  • Webster
  • Hamilton
  • Lyon
  • Lincoln
  • Marion
  • Clear Lake
  • Ellsworth
  • Scott
  • Liberty

Population ranking

The population ranking of the following table is based on the 2020 census of Hamilton County.

county seat

Rank City/Town/etc. Municipal type Population (2020 Census)
1 Webster City City 7,825
2 Jewell Junction City 1,216
3 Stratford (partially in Webster County) City 707
4 Ellsworth City 508
5 Stanhope City 364
6 Williams City 307
7 Kamrar City 179
8 Blairsburg City 176
9 Randall City 154

Education

School districts include:

  • Hubbard-Radcliffe Community School District
  • Roland-Story Community School District
  • South Hamilton Community School District
  • Stratford Community School District
  • Webster City Community School District

Former school districts:

  • Northeast Hamilton Community School District

See also

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

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Hamilton County, Iowa Facts for Kids. Kiddle Encyclopedia.