ZIP Code 49931

49931 is one of Michigan's ZIP codes, delivering to addresses in Houghton, Houghton County.

City: Houghton
County: Houghton County
State: Michigan
Prefix: 499xx

Where this code sits

49931 is part of the 499xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Houghton.

Houghton Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 49931 delivers to without sharing its boundary.

906 Area code 906

ZIP codes nearest 49931

The ZIP codes whose reference points sit closest to 49931.
ZIP code	Distance	Delivers to
ZIP code 49930	1.5 mi	Hancock, MI
ZIP code 49921	2.0 mi	Dodgeville, MI
ZIP code 49922	2.2 mi	Dollar Bay, MI
ZIP code 49905	5.1 mi	Atlantic Mine, MI
ZIP code 49963	5.4 mi	South Range, MI
ZIP code 49934	7.2 mi	Hubbell, MI
ZIP code 49955	7.4 mi	Painesdale, MI
ZIP code 49916	7.9 mi	Chassell, MI

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 49931, plotted from its record coordinates.

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

Scope ZIP code 49931. 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.