Monmouth is a town in Kennebec County, Maine, United States. Monmouth is included in the Lewiston-Auburn, Maine metropolitan New England city and town area. The population was 4,066 at the 2020 census.
Elevation: 262 ft (80 m)
Country: United States
State: Maine
County: Kennebec
Incorporated: 1792
Villages: Monmouth · East Monmouth · North Monmouth · South Monmouth · Tacoma
ZIP Codes: 04259 (Monmouth) · 04265 (North Monmouth)
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