Home > WA > Whitman County > Rosalia > Zip 99170

Zip Code 99170 — Rosalia, WA

99170 is a ZIP Code associated with Rosalia, WA, located within Whitman. The postal region supports an estimated population of 926 residents across Data Pending housing units, with a population density of 2.1 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.251320, -117.402030)

Data MetricLocal Statistic
Postal / Zip Code99170
Primary CityRosalia
State / ProvinceWA
CountyWhitman
Total Population926
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density2.1 people/sq mi
TimezoneAmerica/Los_Angeles

How 99170 Compares

MetricZIP 99170Whitman CountyWA State Average
Population92647,2847,816,021
Median IncomeData PendingN/AN/A
Population Density2.1 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 99149Malden3.6 mi100N/A
Zip 99039Waverly10.0 mi166N/A
Zip 99176Thornton11.0 mi163N/A
Zip 99158Oakesdale11.2 mi561N/A
Zip 99031Spangle11.8 mi1,251N/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 →