ZIP Code 50467
About Rock Falls
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. A post office named Shell Rock Falls opened in 1855; in 1872 this was changed to Rock Falls.
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Area Profile
US Census (ACS 5-year · Gazetteer)
76
population
$65,625
median household income
68
people / sq mi
$160,400
median home value
$967
median gross rent
24.8
median age
44
housing units
29
households
1.1
land area (sq mi)