Find the last 4 digits (ZIP+4) for an address in 99116

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ZIP Code 99116 – Coulee Dam, WA

Coulee Dam, Washington · Okanogan County · Pacific time

ZIP code99116
CityCoulee Dam
StateWashington
CountyOkanogan CountyGrant CountyDouglas County
Population1,786
Time zonePacific · local time
ZIP typeStandard (has a Census ZCTA area)
Land area47.2 sq mi
Center (lat, long)48.0148, -118.9358

Area codes in this area

509

These are the area codes that most often serve ZIP 99116 (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

99124 Elmer City · 1.2 mi99133 Grand Coulee · 9.3 mi99123 Electric City · 10.4 mi99140 Keller · 14.9 mi99103 Almira · 19.3 mi99155 Nespelem · 20.7 mi99185 Wilbur · 22.4 mi99147 Lincoln · 24.4 mi

About ZIP 99116

ZIP code 99116 is assigned to Coulee Dam, Washington. It crosses 3 counties; most of its land is in Okanogan County. Its Census area covers about 47.2 square miles of land. The closest neighboring ZIP is 99124 (Elmer City), about 1.2 miles away.

Every address in 99116 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