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Zip Code 99020 — Marshall, WA

99020 is a ZIP Code associated with Marshall, WA, located within Spokane. The postal region supports an estimated population of 16 residents across Data Pending housing units, with a population density of 143.8 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.563140, -117.497020)

Data MetricLocal Statistic
Postal / Zip Code99020
Primary CityMarshall
State / ProvinceWA
CountySpokane
Total Population16
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density143.8 people/sq mi
TimezoneAmerica/Los_Angeles

How 99020 Compares

MetricZIP 99020Spokane CountyWA State Average
Population16558,6417,816,021
Median IncomeData PendingN/AN/A
Population Density143.8 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 99014Four Lakes4.6 mi17N/A
Zip 99224Spokane6.1 mi24,919N/A
Zip 99203Spokane6.3 mi21,468N/A
Zip 99001Airway Heights6.7 mi9,440N/A
Zip 99204Spokane6.7 mi7,643N/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 →