ZIP Code 51301 Map
Census ZIP Code Tabulation Area 51301 in Spencer, IA (Clay County). ZCTA boundaries closely approximate USPS delivery areas.
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ZIP 51301 Demographics
Source: U.S. Census Bureau, American Community Survey 2020-2024 5-year estimates.
Population
12,638
Households
5,680
Median household income
$63,402
Median age
41.8 years
Median home value
$188,300
Median gross rent
$807/mo
Owner-occupied homes
70.3%
Bachelor's degree or higher
29%
Below poverty level
13.1%
Land area
157.7 sq mi
Population density
80 / sq mi