ZIP Code 49230

49230 is one of Michigan's ZIP codes, delivering to addresses in Brooklyn, Jackson County.

City: Brooklyn
County: Jackson County
State: Michigan
Prefix: 492xx

Where this code sits

49230 is part of the 492xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Brooklyn.

Brooklyn Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 49230 delivers to without sharing its boundary.

517 Area code 517

ZIP codes nearest 49230

The ZIP codes whose reference points sit closest to 49230.
ZIP code	Distance	Delivers to
ZIP code 49261	4.1 mi	Napoleon, MI
ZIP code 49263	4.7 mi	Norvell, MI
ZIP code 49233	5.3 mi	Cement City, MI
ZIP code 49234	5.8 mi	Clarklake, MI
ZIP code 49265	6.0 mi	Onsted, MI
ZIP code 49220	7.9 mi	Addison, MI
ZIP code 49281	9.0 mi	Somerset, MI
ZIP code 49254	9.3 mi	Michigan Center, 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 49230, plotted from its record coordinates.

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

Scope ZIP code 49230. 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.