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ZIP Code 99623 – Wasilla, AK

Wasilla, Alaska · Matanuska-Susitna Borough · Alaska time

ZIP code99623
CityWasilla
StateAlaska
CountyMatanuska-Susitna Borough
Area code907
Population23,424
Time zoneAlaska · local time
ZIP typeStandard (has a Census ZCTA area)
Land area258.58 sq mi
Center (lat, long)61.4393, -149.9227

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Nearby ZIP codes

99652 Big Lake · 5.5 mi99506 Jber · 12.2 mi99694 Houston · 12.9 mi99505 Jber · 13.9 mi99509 Anchorage · 15.3 mi99514 Anchorage · 15.3 mi99520 Anchorage · 15.3 mi99521 Anchorage · 15.3 mi

About ZIP 99623

ZIP code 99623 is assigned to Wasilla, Alaska. It lies in Matanuska-Susitna Borough. Its Census area covers about 258.58 square miles of land. The closest neighboring ZIP is 99652 (Big Lake), about 5.5 miles away.

Every address in 99623 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