ZIP Code 49270

49270 is one of Michigan's ZIP codes, delivering to addresses in Petersburg, Monroe County.

City: Petersburg
County: Monroe County
State: Michigan
Prefix: 492xx

Where this code sits

49270 is part of the 492xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Petersburg.

Petersburg Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 49270 delivers to without sharing its boundary.

734 Area code 734

ZIP codes nearest 49270

The ZIP codes whose reference points sit closest to 49270.
ZIP code	Distance	Delivers to
ZIP code 49238	5.1 mi	Deerfield, MI
ZIP code 48140	5.1 mi	Ida, MI
ZIP code 48131	5.5 mi	Dundee, MI
ZIP code 48177	7.3 mi	Samaria, MI
ZIP code 49267	7.4 mi	Ottawa Lake, MI
ZIP code 49276	8.1 mi	Riga, MI
ZIP code 48144	9.0 mi	Lambertville, MI
ZIP code 48110	9.2 mi	Azalia, 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 49270, plotted from its record coordinates.

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

Scope ZIP code 49270. 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.