US ZIP Code Map

City

Johnston, IA ZIP codes

4 ZIPs, including 50131 as primary city.

ACS population

75,707

Median household income

$107,814

Median home value

$308,525

Map of Johnston

ZIP code map

ZIP share of this city

Population share

ZIP codes in Johnston

ZIPCityCountyPopulationIncome
50109GrangerPolk County3,371$130,263
50111GrimesPolk County16,254$108,352
50131JohnstonPolk County24,388$103,316
50322UrbandalePolk County31,694$89,323