Find the last 4 digits (ZIP+4) for an address in 99343

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ZIP Code 99343 – Mesa, WA

Mesa, Washington · Franklin County · Pacific time

ZIP code99343
CityMesa
StateWashington
CountyFranklin County
Population3,215
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area180.87 sq mi
Center (lat, long)46.5967, -119.1647

Area codes in this area

509

These are the area codes that most often serve ZIP 99343 (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

99330 Eltopia · 9.5 mi99344 Othello · 15.6 mi99326 Connell · 16.1 mi99301 Pasco · 18.2 mi99354 Richland · 19.6 mi99353 West Richland · 22.2 mi99320 Benton City · 24.8 mi98944 Sunnyside · 24.8 mi

About ZIP 99343

ZIP code 99343 is assigned to Mesa, Washington. It lies in Franklin County. Its Census area covers about 180.87 square miles of land. The closest neighboring ZIP is 99330 (Eltopia), about 9.5 miles away.

Every address in 99343 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