ZIP Code 50670
About Shell Rock
Shell Rock is a city in Butler County, Iowa, United States, along the Shell Rock River. The population was 1,268 at the time of the 2020 census. The city is located along the county's eastern border, between Butler and Bremer counties. A post office opened in Shell Rock in 1855.
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Area Profile
US Census (ACS 5-year · Gazetteer)
2,379
population
$83,281
median household income
43
people / sq mi
$172,100
median home value
$750
median gross rent
41.6
median age
910
housing units
850
households
55.1
land area (sq mi)