US ZIP Code Map

City

Duncan, IA ZIP codes

2 ZIPs.

ACS population

6,407

Median household income

$67,802

Median home value

$143,350

Map of Duncan

ZIP code map

ZIP share of this city

Population share

ZIP codes in Duncan

ZIPCityCountyPopulationIncome
50423BrittHancock County2,401$65,966
50438GarnerHancock County4,006$69,637