ZIP Code 83428 – Irwin, ID
Irwin, Idaho · Bonneville County · Mountain time
| ZIP code | 83428 |
|---|---|
| City | Irwin |
| State | Idaho |
| County | Bonneville County |
| Population | 576 |
| Time zone | Mountain · local time |
| ZIP type | Standard (has a Census ZCTA area) |
| Land area | 248.97 sq mi |
| Center (lat, long) | 43.3927, -111.1201 |
Area codes in this area
These are the area codes that most often serve ZIP 83428 (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 83428
ZIP code 83428 is assigned to Irwin, Idaho. It lies in Bonneville County. Its Census area covers about 248.97 square miles of land. The closest neighboring ZIP is 83014 (Wilson), about 8.6 miles away.
Every address in 83428 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