ZIP Code 99171 – Saint John, WA
Saint John, Washington · Whitman County · Pacific time
| ZIP code | 99171 |
|---|---|
| City | Saint John |
| State | Washington |
| County | Whitman County |
| Population | 895 |
| Time zone | Pacific · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 250.28 sq mi |
| Center (lat, long) | 47.0982, -117.6539 |
Area codes in this area
These are the area codes that most often serve ZIP 99171 (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 99171
ZIP code 99171 is assigned to Saint John, Washington. It lies in Whitman County. Its Census area covers about 250.28 square miles of land. The closest neighboring ZIP is 99125 (Endicott), about 10.4 miles away.
Every address in 99171 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