ZIP Code 04364

04364 is one of Maine's ZIP codes, delivering to addresses in Winthrop, Kennebec County.

City: Winthrop
County: Kennebec County
State: Maine
Prefix: 043xx

Where this code sits

04364 is part of the 043xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Winthrop.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04364 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04364

The ZIP codes whose reference points sit closest to 04364.
ZIP code	Distance	Delivers to
ZIP code 04343	3.0 mi	East Winthrop, ME
ZIP code 04351	5.1 mi	Manchester, ME
ZIP code 04265	5.1 mi	North Monmouth, ME
ZIP code 04355	5.6 mi	Readfield, ME
ZIP code 04284	5.9 mi	Wayne, ME
ZIP code 04336	6.9 mi	Augusta, ME
ZIP code 04259	7.8 mi	Monmouth, ME
ZIP code 04347	7.9 mi	Hallowell, 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 04364, plotted from its record coordinates.

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

Scope ZIP code 04364. 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.