Find the last 4 digits (ZIP+4) for an address in 83421

ZIP 83421, Chester, ID is filled in. Just type the street address.

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ZIP Code 83421 – Chester, ID

Chester, Idaho · Fremont County · Mountain time

ZIP code83421
CityChester
StateIdaho
CountyFremont County
Population220
Time zoneMountain · local time
ZIP typeStandard (has a Census ZCTA area)
Land area11.69 sq mi
Center (lat, long)44.0019, -111.5473

Area codes in this area

208986

These are the area codes that most often serve ZIP 83421 (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

83445 Saint Anthony · 10.1 mi83451 Teton · 10.3 mi83436 Newdale · 10.4 mi83438 Parker · 10.9 mi83420 Ashton · 11.7 mi83448 Sugar City · 13.3 mi83441 Rexburg · 17.1 mi83460 Rexburg · 17.3 mi

About ZIP 83421

ZIP code 83421 is assigned to Chester, Idaho. It lies in Fremont County. Its Census area covers about 11.69 square miles of land. The closest neighboring ZIP is 83445 (Saint Anthony), about 10.1 miles away.

Every address in 83421 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