ZIP Code 04345

04345 is one of Maine's ZIP codes, delivering to addresses in Gardiner, Kennebec County.

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

Where this code sits

04345 is part of the 043xx range, the group of codes handled by one mail processing centre. It is the only ZIP code delivering to Gardiner.

Gardiner Maine ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04345 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04345

The ZIP codes whose reference points sit closest to 04345.
ZIP code	Distance	Delivers to
ZIP code 04359	2.4 mi	South Gardiner, ME
ZIP code 04346	2.6 mi	Randolph, ME
ZIP code 04344	3.1 mi	Farmingdale, ME
ZIP code 04347	5.6 mi	Hallowell, ME
ZIP code 04333	7.2 mi	Augusta, ME
ZIP code 04338	7.2 mi	Augusta, ME
ZIP code 04357	7.3 mi	Richmond, ME
ZIP code 04336	7.7 mi	Augusta, 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 04345, plotted from its record coordinates.

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

Scope ZIP code 04345. 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.