ZIP Code 04103

04103 is one of Maine's ZIP codes, delivering to addresses in Portland, Cumberland County.

City: Portland
County: Cumberland County
State: Maine
Prefix: 041xx

Where this code sits

04103 is part of the 041xx range, the group of codes handled by one mail processing centre. Portland is served by 9 ZIP codes in total; the full list, with the county each falls in, is on the Portland page.

Portland Maine ZIP codes →

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 04103 delivers to without sharing its boundary.

207 Area code 207

ZIP codes nearest 04103

The ZIP codes whose reference points sit closest to 04103.
ZIP code	Distance	Delivers to
ZIP code 04102	1.9 mi	Portland, ME
ZIP code 04101	2.4 mi	Portland, ME
ZIP code 04104	2.4 mi	Portland, ME
ZIP code 04112	2.4 mi	Portland, ME
ZIP code 04122	2.4 mi	Portland, ME
ZIP code 04123	2.4 mi	Portland, ME
ZIP code 04124	2.4 mi	Portland, ME
ZIP code 04105	3.4 mi	Falmouth, 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 04103, plotted from its record coordinates.

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

Scope ZIP code 04103. 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.