ZIP Code 05640

05640 is one of Vermont's ZIP codes, delivering to addresses in Adamant, Washington County.

City: Adamant
County: Washington County
State: Vermont
Prefix: 056xx

Where this code sits

05640 is part of the 056xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Adamant.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 05640 delivers to without sharing its boundary.

802 Area code 802

ZIP codes nearest 05640

The ZIP codes whose reference points sit closest to 05640.
ZIP code	Distance	Delivers to
ZIP code 05648	2.9 mi	Calais, VT
ZIP code 05650	3.5 mi	East Calais, VT
ZIP code 05682	3.8 mi	Worcester, VT
ZIP code 05651	5.2 mi	East Montpelier, VT
ZIP code 05602	7.4 mi	Montpelier, VT
ZIP code 05658	7.5 mi	Marshfield, VT
ZIP code 05603	7.6 mi	Montpelier, VT
ZIP code 05667	7.7 mi	Plainfield, VT

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 05640, plotted from its record coordinates.

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

Scope ZIP code 05640. 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.