ZIP Code 83857

83857 is one of Idaho's ZIP codes, delivering to addresses in Princeton, Latah County.

City: Princeton
County: Latah County
State: Idaho
Prefix: 838xx

Where this code sits

83857 is part of the 838xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Princeton.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 83857 delivers to without sharing its boundary.

ZIP codes nearest 83857

The ZIP codes whose reference points sit closest to 83857.
ZIP code	Distance	Delivers to
ZIP code 83855	5.1 mi	Potlatch, ID
ZIP code 83834	6.5 mi	Harvard, ID
ZIP code 83872	7.4 mi	Viola, ID
ZIP code 83871	11 mi	Troy, ID
ZIP code 99161	12 mi	Palouse, WA
ZIP code 83843	14 mi	Moscow, ID
ZIP code 83844	14 mi	Moscow, ID
ZIP code 83823	16 mi	Deary, 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.

Each point is the reference point for 83857, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 83857. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.