ZIP Code 83555

83555 is one of Idaho's ZIP codes, delivering to addresses in Winchester, Lewis County.

City: Winchester
County: Lewis County
State: Idaho
Prefix: 835xx

Where this code sits

83555 is part of the 835xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Winchester.

Winchester Idaho ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 83555 delivers to without sharing its boundary.

ZIP codes nearest 83555

The ZIP codes whose reference points sit closest to 83555.
ZIP code	Distance	Delivers to
ZIP code 83523	7.3 mi	Craigmont, ID
ZIP code 83548	7.9 mi	Reubens, ID
ZIP code 83524	9.8 mi	Culdesac, ID
ZIP code 83526	13 mi	Ferdinand, ID
ZIP code 83501	14 mi	Lewiston, ID
ZIP code 83540	15 mi	Lapwai, ID
ZIP code 83522	18 mi	Cottonwood, ID
ZIP code 83543	18 mi	Nezperce, 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 83555, plotted from its record coordinates.

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

Scope ZIP code 83555. 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.