ZIP Code 98850 – Rock Island, WA
Rock Island, Washington · Douglas County · Pacific time
| ZIP code | 98850 |
|---|---|
| City | Rock Island |
| State | Washington |
| County | Douglas County |
| Population | 2,032 |
| Time zone | Pacific · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 76.25 sq mi |
| Center (lat, long) | 47.4053, -120.0387 |
Area codes in this area
These are the area codes that most often serve ZIP 98850 (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
About ZIP 98850
ZIP code 98850 is assigned to Rock Island, Washington. It lies in Douglas County. Its Census area covers about 76.25 square miles of land. The closest neighboring ZIP is 98845 (Palisades), about 5.4 miles away.
Every address in 98850 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