Portland Maine ZIP Codes

Portland holds 9 ZIP codes, all inside one county and one postal prefix.

We do not publish a delivery type (standard, PO box, unique) or a neighbourhood for each ZIP. USPS delivery-type products are licensed, and no clean-rights source maps ZIP codes to neighbourhoods — so the Portland codes above are listed without a column we would have to invent.

Scope every ZIP code recorded for Portland. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. ZIP codes are delivery-route groupings, not areas; the boundaries implied by any ZIP map are approximations.

Every Portland ZIP code begins 041. Those first three digits identify the sectional center facility that processes mail for this part of Maine. Statewide that range covers 15 ZIP codes, so Portland accounts for 60% of it.

Every Maine ZIP prefix and the region it covers →

ZIP codes and area codes are separate systems — one routes mail, the other routes calls — and they do not share boundaries. The code below serves the same ground Portland occupies.

• 207 Area code 207

Portland Maine area codes in full →

Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.