ZIP Code 04355

04355 is one of Maine's ZIP codes, delivering to addresses in Readfield, Kennebec County.

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

Where this code sits

04355 is part of the 043xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Readfield.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04355 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04355

The ZIP codes whose reference points sit closest to 04355.
ZIP code	Distance	Delivers to
ZIP code 04351	5.2 mi	Manchester, ME
ZIP code 04364	5.6 mi	Winthrop, ME
ZIP code 04343	6.2 mi	East Winthrop, ME
ZIP code 04917	6.3 mi	Belgrade, ME
ZIP code 04349	6.6 mi	Kents Hill, ME
ZIP code 04352	6.9 mi	Mount Vernon, ME
ZIP code 04284	7.0 mi	Wayne, ME
ZIP code 04228	8.9 mi	East Livermore, 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 04355, plotted from its record coordinates.

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

Scope ZIP code 04355. 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.