Monmouth ZIP code, Maine
The ZIP code for Monmouth, ME is 04259, and its area code is 207.
- USPS city name
- 1 ZIP code
- Population
- 3,610
- Area code
- 207
- County
- Kennebec County
- State
- Maine
Monmouth in numbers
About 3,610 people live in Monmouth, in 1,492 households. The median household income is $83,919 a year, 12% above the Maine median of $74,733 (US: $80,734). The median owner-occupied home is valued at $298,300 (about the same as the Maine median).
| Population | 3,610 |
|---|---|
| Households | 1,492 |
| Median household income | $83,919 |
| Median home value | $298,300 |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Monmouth. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Monmouth
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
04259 | Monmouth , ME | Standard | 3,610 | $83,919 | $298,300 |
Map of Monmouth ZIP codes
The ZIP codes of Monmouth, ME, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Monmouth
The nearest larger towns are Gardiner (6,088 people, 11 mi), Lewiston (38,324 people, 13 mi) and Lisbon (3,612 people, 15 mi).
| Town | Population | Distance |
|---|---|---|
| Winthrop | 3,108 | 7.0 mi |
| Hallowell | 2,592 | 10.4 mi |
| Gardiner | 6,088 | 11.3 mi |
| Lewiston | 38,324 | 12.6 mi |
| Lisbon | 3,612 | 14.8 mi |
| Auburn | 24,602 | 15.5 mi |
| Augusta | 19,077 | 15.5 mi |
| Lisbon Falls | 4,267 | 15.7 mi |
| Topsham | 7,271 | 20.2 mi |
| Bath | 8,815 | 22.4 mi |
| Brunswick | 17,652 | 24.2 mi |
| Oakland | 2,710 | 26.8 mi |
| Norway | 3,173 | 27.2 mi |
| Waterville | 17,077 | 27.7 mi |
More nearby: every ZIP code in Kennebec County · Maine ZIP codes
Cite this page
zipcodes.pro. “Monmouth, ME ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/me/monmouth
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