ZIP Code 87942

87942 is one of New Mexico's ZIP codes, delivering to addresses in Williamsburg, Sierra County.

City: Williamsburg
County: Sierra County
State: New Mexico
Prefix: 879xx

Where this code sits

87942 is part of the 879xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Williamsburg.

Williamsburg New Mexico ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 87942 delivers to without sharing its boundary.

505 Area code 505

ZIP codes nearest 87942

The ZIP codes whose reference points sit closest to 87942.
ZIP code	Distance	Delivers to
ZIP code 87901	3.3 mi	Truth Or Consequences, NM
ZIP code 87935	7.5 mi	Elephant Butte, NM
ZIP code 87931	13 mi	Caballo, NM
ZIP code 87930	19 mi	Arrey, NM
ZIP code 87654	21 mi	Spaceport City, NM
ZIP code 87939	21 mi	Monticello, NM
ZIP code 87933	23 mi	Derry, NM
ZIP code 88042	24 mi	Hillsboro, NM

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 87942, plotted from its record coordinates.

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

Scope ZIP code 87942. 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.