ZIP code · Union · Washington · United States
ZIP code 98592 — Union
ZIP code 98592 serves Union, Washington.
- Postal code
- 98592Single source Value from one source, not cross-checked.
- City
- Union
- County
- Mason
- State
- Washington
- Country
- United States
- Coordinates
- 47.3368, -123.0750 — precision precise (locality)
View on OpenStreetMap - Population
- 1,666 (ZCTA, ACS 5-year)
- Median household income
- $111,000
- Median age
- 61.6
Nearby localities
About this page
US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.
GeoNames · census-acs5. Data generated on 2026-08-21. Methodology · Report an error on this page