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Zip Code 50057 — Columbia, IA

50057 is a ZIP Code associated with Columbia, IA, located within Marion. The postal region supports an estimated population of 327 residents across Data Pending housing units, with a population density of 6.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.178590, -93.145540)

Data MetricLocal Statistic
Postal / Zip Code50057
Primary CityColumbia
State / ProvinceIA
CountyMarion
Total Population327
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density6.8 people/sq mi
TimezoneAmerica/Chicago

How 50057 Compares

MetricZIP 50057Marion CountyIA State Average
Population32733,8543,210,984
Median IncomeData PendingN/AN/A
Population Density6.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 50163Melcher Dallas5.8 mi689N/A
Zip 50062Melcher Dallas6.4 mi789N/A
Zip 50116Hamilton8.5 mi261N/A
Zip 50272Williamson8.5 mi190N/A
Zip 50138Knoxville8.8 mi11,117N/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 →