ZIP Code 05866

05866 is one of Vermont's ZIP codes, delivering to addresses in Sheffield, Caledonia County.

City: Sheffield
County: Caledonia County
State: Vermont
Prefix: 058xx

Where this code sits

05866 is part of the 058xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Sheffield.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 05866 delivers to without sharing its boundary.

802 Area code 802

ZIP codes nearest 05866

The ZIP codes whose reference points sit closest to 05866.
ZIP code	Distance	Delivers to
ZIP code 05851	5.0 mi	Lyndonville, VT
ZIP code 05867	5.4 mi	Sutton, VT
ZIP code 05839	5.9 mi	Glover, VT
ZIP code 05850	7.4 mi	Lyndon Center, VT
ZIP code 05841	8.1 mi	Greensboro, VT
ZIP code 05842	8.4 mi	Greensboro Bend, VT
ZIP code 05822	8.6 mi	Barton, VT
ZIP code 05871	8.8 mi	West Burke, 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 05866, plotted from its record coordinates.

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

Scope ZIP code 05866. 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.