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Zip Code 51555 — Missouri Valley, IA

51555 is a ZIP Code associated with Missouri Valley, IA, located within Harrison. The postal region supports an estimated population of 4,952 residents across Data Pending housing units, with a population density of 13.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.559370, -95.913980)

Data MetricLocal Statistic
Postal / Zip Code51555
Primary CityMissouri Valley
State / ProvinceIA
CountyHarrison
Total Population4,952
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density13.1 people/sq mi
TimezoneAmerica/Chicago

How 51555 Compares

MetricZIP 51555Harrison CountyIA State Average
Population4,95214,7593,210,984
Median IncomeData PendingN/AN/A
Population Density13.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 51556Modale8.4 mi266N/A
Zip 51546Logan9.2 mi3,114N/A
Zip 51550Magnolia9.4 mi169N/A
Zip 51542Honey Creek9.5 mi802N/A
Zip 51557Mondamin12.6 mi828N/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 →