Home > WA > King County > Seattle > Zip 98109

Zip Code 98109 — Seattle, WA

ZIP Code 98109 is associated with Seattle, WA, in King County. The listed population estimate is 34,328; estimated density is 6,851.0 people per square mile. Among records with population estimates, it ranks #30 of 83 in King County and #77 of 597 in WA.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (47.631280, -122.344860)

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

How 98109 Compares

MetricZIP 98109King County recordsWA records
Population estimate34,3282,298,714 (sum)7,816,021 (sum)
Population Density6,851.0 /sq mi----
County population rank#30 of 83----
State population rank#77 of 597----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in WA

ZIP CodeCityDistancePopulation estimate
ZIP 98102Seattle1.1 mi27,333
ZIP 98121Seattle1.1 mi21,166
ZIP 98119Seattle1.3 mi26,879
ZIP 98101Seattle1.5 mi17,153
ZIP 98154Seattle1.8 miN/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 →