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Zip Code 66955 — Mahaska, KS

66955 is a ZIP Code associated with Mahaska, KS, located within Washington. 66955 ranks #11 out of 11 ZIP codes in Washington County by population (and #680 out of 704 in KS). The area supports an estimated population of 47 residents across Data Pending housing units, with a population density of 0.3 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.979840, -97.317150)

Data MetricLocal Statistic
Postal / Zip Code66955
Primary CityMahaska
State / ProvinceKS
CountyWashington
Total Population47
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density0.3 people/sq mi
TimezoneAmerica/Chicago

How 66955 Compares

MetricZIP 66955Washington CountyKS State Average
Population475,761 (Total)2,947,026 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density0.3 /sq mi----
County Pop Rank#11 of 11----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 66960Narka6.5 mi125N/A
Zip 66944Haddam9.7 mi304N/A
Zip 66958Morrowville9.8 mi198N/A
Zip 66959Munden12.2 mi339N/A
Zip 66940Cuba14.2 mi283N/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 →