Census place · GEOID 5361115 · King County
Sammamish, WA ZIP codes
3 ZIP/ZCTAs intersecting this Census place in King County.
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: Census place Sammamish (GEOID 5361115). Methodology
Combined population of ZIP/ZCTAs intersecting this place: 87,011 (3 ZIPs).
Combined population of ZIP/ZCTAs intersecting this place. Each intersecting ZIP contributes its full ZCTA population; overlap percents are descriptive only. This is not the Census place ACS headline above. Methodology
Map of Sammamish, WA

ZIP/ZCTA overlap with Sammamish
Population overlap
Share of each ZIP/ZCTA’s population located within Sammamish, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
ZIP codes intersecting Sammamish
| ZIP | City | County | Population | Income |
|---|---|---|---|---|
| 98029 | Issaquah | King County | 30,930 | $164,058 |
| 98074 | Sammamish | King County | 30,850 | $234,013 |
| 98075 | Sammamish | King County | 25,231 | $250,000+ |