Home > WA > King County > Maple Valley > Zip 98038

Zip Code 98038 — Maple Valley, WA

98038 is a ZIP Code associated with Maple Valley, WA, located within King. The postal region supports an estimated population of 37,324 residents across Data Pending housing units, with a population density of 219.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.418610, -121.955890)

Data MetricLocal Statistic
Postal / Zip Code98038
Primary CityMaple Valley
State / ProvinceWA
CountyKing
Total Population37,324
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density219.0 people/sq mi
TimezoneAmerica/Los_Angeles

How 98038 Compares

MetricZIP 98038King CountyWA State Average
Population37,3242,298,7147,816,021
Median IncomeData PendingN/AN/A
Population Density219.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98025Hobart1.1 mi52N/A
Zip 98051Ravensdale6.3 mi3,442N/A
Zip 98027Issaquah6.3 mi28,955N/A
Zip 98010Black Diamond7.7 mi6,857N/A
Zip 98058Renton8.1 mi42,980N/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 →