Home > WA > King County > Seattle > Zip 98109

Zip Code 98109 — Seattle, WA

98109 is a ZIP Code associated with Seattle, WA, located within King. The postal region supports an estimated population of 34,328 residents across Data Pending housing units, with a population density of 6,851.0 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (47.631280, -122.344860)

Data MetricLocal Statistic
Postal / Zip Code98109
Primary CitySeattle
State / ProvinceWA
CountyKing
Total Population34,328
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density6,851.0 people/sq mi
TimezoneAmerica/Los_Angeles

How 98109 Compares

MetricZIP 98109King CountyWA State Average
Population34,3282,298,7147,816,021
Median IncomeData PendingN/AN/A
Population Density6,851.0 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 98102Seattle1.1 mi27,333N/A
Zip 98121Seattle1.1 mi21,166N/A
Zip 98119Seattle1.3 mi26,879N/A
Zip 98101Seattle1.5 mi17,153N/A
Zip 98154Seattle1.8 miN/AN/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 →