ZIP Code 04856

04856 is one of Maine's ZIP codes, delivering to addresses in Rockport, Knox County.

City: Rockport
County: Knox County
State: Maine
Prefix: 048xx

Where this code sits

04856 is part of the 048xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Rockport.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04856 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04856

The ZIP codes whose reference points sit closest to 04856.
ZIP code	Distance	Delivers to
ZIP code 04865	1.6 mi	West Rockport, ME
ZIP code 04843	1.8 mi	Camden, ME
ZIP code 04841	5.4 mi	Rockland, ME
ZIP code 04847	5.6 mi	Hope, ME
ZIP code 04850	7.6 mi	Lincolnville Center, ME
ZIP code 04854	8.0 mi	Owls Head, ME
ZIP code 04849	8.0 mi	Lincolnville, ME
ZIP code 04861	8.7 mi	Thomaston, 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 04856, plotted from its record coordinates.

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

Scope ZIP code 04856. 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.