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Keystone, Iowa
Location of Keystone, Iowa
Location of Keystone, Iowa
Country  United States
State  Iowa
County Benton
Area
 • Total 0.45 sq mi (1.16 km2)
 • Land 0.45 sq mi (1.16 km2)
 • Water 0.00 sq mi (0.00 km2)
Elevation
883 ft (269 m)
Population
 (2020)
 • Total 599
 • Density 1,337.05/sq mi (516.05/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
52249
Area code(s) 319
FIPS code 19-41115
GNIS feature ID 0458064

Keystone is a city in Benton County, Iowa, United States. The population was 599 at the time of the 2020 census. It is part of the Cedar Rapids Metropolitan Statistical Area.

History

Keystone was platted in 1881 when the Chicago, Milwaukee, and St. Paul Railroad was extended to that point.

Geography

Keystone is located at 42°00′03″N 92°11′55″W / 42.000915°N 92.198544°W / 42.000915; -92.198544.

According to the United States Census Bureau, the city has a total area of 0.45 square miles (1.17 km2), all of it land.

Demographics

Historical populations
Year Pop. ±%
1900 405 —    
1910 412 +1.7%
1920 558 +35.4%
1930 499 −10.6%
1940 466 −6.6%
1950 438 −6.0%
1960 522 +19.2%
1970 549 +5.2%
1980 618 +12.6%
1990 568 −8.1%
2000 687 +21.0%
2010 622 −9.5%
2020 599 −3.7%
Source: and Iowa Data Center
Source:
U.S. Decennial Census

2010 census

As of the census of 2010, there were 622 people, 250 households, and 165 families living in the city. The population density was 1,382.2 inhabitants per square mile (533.7/km2). There were 280 housing units at an average density of 622.2 per square mile (240.2/km2). The racial makeup of the city was 99.2% White, 0.5% Native American, 0.2% Asian, and 0.2% from two or more races. Hispanic or Latino of any race were 0.6% of the population.

There were 250 households, of which 30.8% had children under the age of 18 living with them, 53.2% were married couples living together, 8.8% had a female householder with no husband present, 4.0% had a male householder with no wife present, and 34.0% were non-families. 32.0% of all households were made up of individuals, and 20.4% had someone living alone who was 65 years of age or older. The average household size was 2.34 and the average family size was 2.93.

The median age in the city was 42.8 years. 24% of residents were under the age of 18; 5.9% were between the ages of 18 and 24; 23% were from 25 to 44; 22.7% were from 45 to 64; and 24.4% were 65 years of age or older. The gender makeup of the city was 45.0% male and 55.0% female.

Education

Benton Community School District operates local public schools.

Notable people

  • Tim Kapucian (born 1967), Iowa State Senator from the 20th District
  • Monte Merkel (1916–1981), American football player

See also

Kids robot.svg In Spanish: Keystone (Iowa) para niños

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