ZIP Code 04578

04578 is one of Maine's ZIP codes, delivering to addresses in Wiscasset, Lincoln County.

City: Wiscasset
County: Lincoln County
State: Maine
Prefix: 045xx

Where this code sits

04578 is part of the 045xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Wiscasset.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04578 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04578

The ZIP codes whose reference points sit closest to 04578.
ZIP code	Distance	Delivers to
ZIP code 04556	3.7 mi	Edgecomb, ME
ZIP code 04342	5.8 mi	Dresden, ME
ZIP code 04535	6.0 mi	Alna, ME
ZIP code 04579	6.6 mi	Woolwich, ME
ZIP code 04573	7.8 mi	Walpole, ME
ZIP code 04549	8.0 mi	Isle Of Springs, ME
ZIP code 04570	8.0 mi	Squirrel Island, ME
ZIP code 04553	8.0 mi	Newcastle, 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 04578, plotted from its record coordinates.

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

Scope ZIP code 04578. 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.