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Rock Falls, Iowa
Location of Rock Falls, Iowa
Location of Rock Falls, Iowa
Country  United States
State  Iowa
County Cerro Gordo
Area
 • Total 0.21 sq mi (0.54 km2)
 • Land 0.21 sq mi (0.54 km2)
 • Water 0.00 sq mi (0.00 km2)
Elevation
1,102 ft (336 m)
Population
 (2020)
 • Total 150
 • Density 724.64/sq mi (279.85/km2)
Time zone UTC-6 (Central (CST))
 • Summer (DST) UTC-5 (CDT)
ZIP code
50467
Area code(s) 641
FIPS code 19-68025
GNIS feature ID 0460739

Rock Falls is a city in Cerro Gordo County, Iowa, United States, along the Shell Rock River. The population was 150 at the time of the 2020 census. It is part of the Mason City Micropolitan Statistical Area.

Geography

Rock Falls is located at 43°12′22″N 93°5′10″W / 43.20611°N 93.08611°W / 43.20611; -93.08611 (43.206223, -93.086145).

According to the United States Census Bureau, the city has a total area of 0.21 square miles (0.54 km2), all land.

Demographics

Historical populations
Year Pop. ±%
1870 221 —    
1880 221 +0.0%
1890 122 −44.8%
1900 124 +1.6%
1910 87 −29.8%
1920 85 −2.3%
1930 109 +28.2%
1940 153 +40.4%
1950 139 −9.2%
1960 156 +12.2%
1970 150 −3.8%
1980 196 +30.7%
1990 155 −20.9%
2000 170 +9.7%
2010 155 −8.8%
2020 150 −3.2%
Source: and Iowa Data Center
Source:
U.S. Decennial Census

2010 census

As of the census of 2010, there were 155 people, 68 households, and 50 families residing in the city. The population density was 738.1 inhabitants per square mile (285.0/km2). There were 74 housing units at an average density of 352.4 per square mile (136.1/km2). The racial makeup of the city was 98.7% White, 0.6% Asian, and 0.6% from two or more races.

There were 68 households, of which 22.1% had children under the age of 18 living with them, 66.2% were married couples living together, 4.4% had a female householder with no husband present, 2.9% had a male householder with no wife present, and 26.5% were non-families. 19.1% of all households were made up of individuals, and 10.3% had someone living alone who was 65 years of age or older. The average household size was 2.28 and the average family size was 2.64.

The median age in the city was 49.5 years. 14.8% of residents were under the age of 18; 4.7% were between the ages of 18 and 24; 24.5% were from 25 to 44; 29.1% were from 45 to 64; and 27.1% were 65 years of age or older. The gender makeup of the city was 51.0% male and 49.0% female.

Education

Rock Falls' public schools are operated by the Central Springs Community School District, established on July 1, 2011, by the merger of North Central Community School District and Nora Springs–Rock Falls Community School District.

See also

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

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