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Zip Code 50431 — Coulter, IA

ZIP Code 50431 is associated with Coulter, IA, in Franklin County. The listed population estimate is 228; estimated density is 117.8 people per square mile. Among records with population estimates, it ranks #7 of 11 in Franklin County and #837 of 969 in IA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (42.736480, -93.369890)

Data MetricLocal Statistic
Postal / Zip Code50431
Primary CityCoulter
State / ProvinceIA
CountyFranklin
Total Population228
Population Density117.8 people/sq mi
TimezoneAmerica/Chicago

How 50431 Compares

MetricZIP 50431Franklin County recordsIA records
Population estimate22811,623 (sum)3,210,984 (sum)
Population Density117.8 /sq mi----
County population rank#7 of 11----
State population rank#837 of 969----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in IA

ZIP CodeCityDistancePopulation estimate
ZIP 50452Latimer3.0 mi946
ZIP 50420Alexander6.5 mi473
ZIP 50441Hampton7.5 mi5,450
ZIP 50071Dows9.2 mi847
ZIP 50470Rowan9.4 mi287

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 →