Home > IA > Franklin County > Coulter > Zip 50431

Zip Code 50431 — Coulter, IA

50431 is a ZIP Code associated with Coulter, IA, located within Franklin. The postal region supports an estimated population of 228 residents across Data Pending housing units, with a population density of 117.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (42.736480, -93.369890)

Data MetricLocal Statistic
Postal / Zip Code50431
Primary CityCoulter
State / ProvinceIA
CountyFranklin
Total Population228
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density117.8 people/sq mi
TimezoneAmerica/Chicago

How 50431 Compares

MetricZIP 50431Franklin CountyIA State Average
Population22811,6233,210,984
Median IncomeData PendingN/AN/A
Population Density117.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 50452Latimer3.0 mi946N/A
Zip 50420Alexander6.5 mi473N/A
Zip 50441Hampton7.5 mi5,450N/A
Zip 50071Dows9.2 mi847N/A
Zip 50470Rowan9.4 mi287N/A

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →