ZIP Code 49421

49421 is one of Michigan's ZIP codes, delivering to addresses in Hesperia, Oceana County.

City: Hesperia
County: Oceana County
State: Michigan
Prefix: 494xx

Where this code sits

49421 is part of the 494xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Hesperia.

Hesperia Michigan ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 49421 delivers to without sharing its boundary.

231 Area code 231

ZIP codes nearest 49421

The ZIP codes whose reference points sit closest to 49421.
ZIP code	Distance	Delivers to
ZIP code 49412	10 mi	Fremont, MI
ZIP code 49459	12 mi	Walkerville, MI
ZIP code 49425	12 mi	Holton, MI
ZIP code 49309	13 mi	Bitely, MI
ZIP code 49413	13 mi	Fremont, MI
ZIP code 49312	14 mi	Brohman, MI
ZIP code 49446	15 mi	New Era, MI
ZIP code 49420	15 mi	Hart, 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 49421, plotted from its record coordinates.

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

Scope ZIP code 49421. 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.