Find the last 4 digits (ZIP+4) for an address in 98592

ZIP 98592, Union, WA is filled in. Just type the street address.

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ZIP Code 98592 – Union, WA

Union, Washington · Mason County · Pacific time

ZIP code98592
CityUnion
StateWashington
CountyMason County
Population2,059
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area17.68 sq mi
Center (lat, long)47.3340, -123.0762

Area codes in this area

360564

These are the area codes that most often serve ZIP 98592 (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.

Map

Nearby ZIP codes

98584 Shelton · 7.4 mi98546 Grapeview · 7.6 mi98588 Tahuya · 8 mi98524 Allyn · 11.5 mi98528 Belfair · 11.5 mi98394 Vaughn · 13.4 mi98555 Lilliwaup · 13.8 mi98548 Hoodsport · 15 mi

About ZIP 98592

ZIP code 98592 is assigned to Union, Washington. It lies in Mason County. Its Census area covers about 17.68 square miles of land. The closest neighboring ZIP is 98584 (Shelton), about 7.4 miles away.

Every address in 98592 also has a 4-digit add-on code (ZIP+4) that points to a smaller delivery area. Use the box above to find it.

Sources: US Census Bureau (ZCTA, county relationship files), GeoNames (CC BY 4.0), NANPA via NumberResearch.org (CC BY 4.0). Map © OpenStreetMap contributors. ZIP areas are approximate. Population: U.S. Census Bureau, ACS 5-year estimates, 2024 (ZCTA). Data sources