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Polk County, Iowa ZIP code demographics

42 ZIP Code Tabulation Areas in Polk County, Iowa. The population-weighted median household income is about $91,053, the median home value about $283,430, and 68% of occupied homes are owner-occupied.

42
ZIP codes
576.8K
Population
53
Data points

Polk County at a glance

$91,053
Median household income
$283,430
Median home value
36.3
Median age
68%
Owner-occupied
248,897
Housing units

Income, home value, and age are population-weighted averages of the ZIP-level medians in the file. Counts are exact.

Top 5 Polk County ZIP codes by median household income
#ZIPCityPopulationHomeowner %Median HH $
150323Grimes17,26587.2%$175,944
250226Polk City7,75989.5%$153,011
350035Altoona10,13191%$134,906
450325Clive19,01275.4%$132,121
550061Cumming2,12396.7%$130,714
Top 5 Polk County ZIP codes by population
#ZIPCityPopulationHomeowner %Median HH $
150023Ankeny46,30671.5%$117,826
250266West Des Moines37,52349.8%$87,025
350317Ankeny36,54872.5%$65,617
450315Des Moines34,81661.5%$60,590
550265West Des Moines33,48866.4%$85,915
Top 5 Polk County ZIP codes by Homeowner GDP
#ZIPCityPopulationHomeowner %Median HH $Homeowner GDP
150023Ankeny46,30671.5%$117,826$1.5B
250021Ankeny30,28374.5%$99,572$908.7M
350323Grimes17,26587.2%$175,944$894.5M
450322Des Moines31,93172.8%$92,085$869.2M
550265West Des Moines33,48866.4%$85,915$842M

Homeowner GDP = owner-occupied units × median household income — a proxy for aggregate homeowner spending power in a ZIP, useful for scoring market opportunity. Not an official economic statistic.

Densest: 50311 (Des Moines) at 5,712 people/sq mi. Least dense: 50168 (Mingo) at 22 people/sq mi.

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