Washington County, Idaho
3 ZIP codes · 1,452.85 sq mi of land · FIPS 16087
| Population | 11,142 |
|---|---|
| State | Idaho |
| FIPS code | 16087 |
| Time zone | Mountain |
| Land area | 1,452.85 sq mi |
| Center (lat, long) | 44.4482, -116.7978 |
Area codes in this area
These are the area codes that most often serve Washington County (including overlays). The exact area code depends on the phone number — landlines, mobiles and overlays can differ even on the same street.
Cities and towns (largest first)
CambridgeMidvaleWeiser
ZIP codes in Washington County
Population: U.S. Census Bureau, ACS 5-year estimates, 2024.