ZIP Code 48738

48738 is one of Michigan's ZIP codes, delivering to addresses in Greenbush, Alcona County.

City: Greenbush
County: Alcona County
State: Michigan
Prefix: 487xx

Where this code sits

48738 is part of the 487xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Greenbush.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 48738 delivers to without sharing its boundary.

989 Area code 989

ZIP codes nearest 48738

The ZIP codes whose reference points sit closest to 48738.
ZIP code	Distance	Delivers to
ZIP code 48745	5.9 mi	Mikado, MI
ZIP code 48750	7.2 mi	Oscoda, MI
ZIP code 48740	7.4 mi	Harrisville, MI
ZIP code 48742	12 mi	Lincoln, MI
ZIP code 48705	17 mi	Barton City, MI
ZIP code 48737	18 mi	Glennie, MI
ZIP code 48721	18 mi	Black River, MI
ZIP code 48730	19 mi	East Tawas, 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 48738, plotted from its record coordinates.

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

Scope ZIP code 48738. 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.