ZIP Code 83421
83421 is one of Idaho's ZIP codes, delivering to addresses in Chester, Fremont County.
- City
- Chester
- County
- Fremont County
- State
- Idaho
- Prefix
- 834xx
Where this code sits
83421 is part of the 834xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Chester.
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 83421 delivers to without sharing its boundary.
ZIP codes nearest 83421
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 83420 | 5.5 mi | Ashton, ID |
| ZIP code 83436 | 8.5 mi | Newdale, ID |
| ZIP code 83445 | 8.8 mi | Saint Anthony, ID |
| ZIP code 83451 | 9.5 mi | Teton, ID |
| ZIP code 83438 | 11 mi | Parker, ID |
| ZIP code 83448 | 13 mi | Sugar City, ID |
| ZIP code 83441 | 17 mi | Rexburg, ID |
| ZIP code 83460 | 18 mi | Rexburg, ID |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 83421. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.