ZIP Code 04478

04478 is one of Maine's ZIP codes, delivering to addresses in Rockwood, Somerset County.

City: Rockwood
County: Somerset County
State: Maine
Prefix: 044xx

Where this code sits

04478 is part of the 044xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rockwood.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04478 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04478

The ZIP codes whose reference points sit closest to 04478.
ZIP code	Distance	Delivers to
ZIP code 04945	24 mi	Jackman, ME
ZIP code 04442	28 mi	Greenville Junction, ME
ZIP code 04441	31 mi	Greenville, ME
ZIP code 04985	34 mi	West Forks, ME
ZIP code 04485	37 mi	Shirley Mills, ME
ZIP code 04925	43 mi	Caratunk, ME
ZIP code 04464	43 mi	Monson, ME
ZIP code 04406	46 mi	Abbot, ME

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 04478, plotted from its record coordinates.

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

Scope ZIP code 04478. 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.