ZIP Code 50131 Map
Census ZIP Code Tabulation Area 50131 in Johnston, IA (Polk County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 50131 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
24,583
Households
9,361
Median household income
$106,551
Median age
37.5 years
Median home value
$369,400
Median gross rent
$1,338/mo
Owner-occupied homes
71.1%
Bachelor's degree or higher
57.7%
Below poverty level
10.1%
Land area
23.8 sq mi
Population density
1,033 / sq mi