ZIP Code 83871

83871 is one of Idaho's ZIP codes, delivering to addresses in Troy, Latah County.

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

Where this code sits

83871 is part of the 838xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Troy.

Troy Idaho ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 83871 delivers to without sharing its boundary.

ZIP codes nearest 83871

The ZIP codes whose reference points sit closest to 83871.
ZIP code	Distance	Delivers to
ZIP code 83843	11 mi	Moscow, ID
ZIP code 83844	11 mi	Moscow, ID
ZIP code 83537	11 mi	Kendrick, ID
ZIP code 83857	11 mi	Princeton, ID
ZIP code 83535	12 mi	Juliaetta, ID
ZIP code 83823	12 mi	Deary, ID
ZIP code 83872	13 mi	Viola, ID
ZIP code 83834	14 mi	Harvard, 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 83871, plotted from its record coordinates.

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

Scope ZIP code 83871. 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.