ZIP Code 83611

83611 is one of Idaho's ZIP codes, delivering to addresses in Cascade, Valley County.

City: Cascade
County: Valley County
State: Idaho
Prefix: 836xx

Where this code sits

83611 is part of the 836xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Cascade.

Cascade Idaho ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 83611 delivers to without sharing its boundary.

ZIP codes nearest 83611

The ZIP codes whose reference points sit closest to 83611.
ZIP code	Distance	Delivers to
ZIP code 83615	20 mi	Donnelly, ID
ZIP code 83677	20 mi	Yellow Pine, ID
ZIP code 83635	24 mi	Lake Fork, ID
ZIP code 83638	26 mi	McCall, ID
ZIP code 83654	38 mi	New Meadows, ID
ZIP code 83671	40 mi	Warren, ID
ZIP code 83643	40 mi	Mesa, ID
ZIP code 83612	40 mi	Council, 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 83611, plotted from its record coordinates.

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

Scope ZIP code 83611. 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.