ZIP Code 83666

83666 is one of Idaho's ZIP codes, delivering to addresses in Placerville, Boise County.

City: Placerville
County: Boise County
State: Idaho
Prefix: 836xx

Where this code sits

83666 is part of the 836xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Placerville.

Placerville Idaho ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 83666 delivers to without sharing its boundary.

ZIP codes nearest 83666

The ZIP codes whose reference points sit closest to 83666.
ZIP code	Distance	Delivers to
ZIP code 83629	11 mi	Horseshoe Bend, ID
ZIP code 83602	11 mi	Banks, ID
ZIP code 83622	12 mi	Garden Valley, ID
ZIP code 83631	14 mi	Idaho City, ID
ZIP code 83670	17 mi	Sweet, ID
ZIP code 83714	22 mi	Garden City, ID
ZIP code 83657	24 mi	Ola, ID
ZIP code 83648	24 mi	Mountain Home Afb, 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 83666, plotted from its record coordinates.

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

Scope ZIP code 83666. 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.