| Official Name: | Winthrop, Maine |
| Settlement Type: | Census-designated place |
| Mapsize: | 300px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Maine |
| Subdivision Type2: | County |
| Subdivision Name2: | Kennebec |
| Subdivision Type3: | Town |
| Subdivision Name3: | Winthrop |
| Unit Pref: | Imperial |
| Area Footnotes: | [1] |
| Area Total Km2: | 18.64 |
| Area Land Km2: | 14.32 |
| Area Water Km2: | 4.32 |
| Area Total Sq Mi: | 7.20 |
| Area Land Sq Mi: | 5.53 |
| Area Water Sq Mi: | 1.67 |
| Population As Of: | 2020 |
| Population Total: | 2666 |
| Population Density Km2: | 186.17 |
| Population Density Sq Mi: | 482.18 |
| Timezone: | Eastern (EST) |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Elevation M: | 70 |
| Elevation Ft: | 230 |
| Coordinates: | 44.3119°N -69.9686°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 04364 |
| Area Code: | 207 |
| Blank Name: | FIPS code |
| Blank Info: | 23-86935 |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 0578610 |
Winthrop is a census-designated place (CDP) comprising the primary settlement in the town of Winthrop in Kennebec County, Maine, United States. The population was 2,650 at the 2010 census,[2] out of 6,092 in the town of Winthrop as a whole.
Winthrop is located in southwestern Kennebec County at 44.3117°N -69.9686°W (44.311812, −69.968699),[3] in the center of the town of Winthrop. The village is in the Winthrop Lakes Region and sits between the outlet of Maranacook Lake and the inlet of Annabessacook Lake along their connecting stream, which falls in . The CDP includes rural land surrounding the village, extending east to the shore of Upper Narrows Pond, south down Annabessacook Lake to the inlet of Hoyt Brook, north up Maranacook Lake to the Readfield town line, and west along Hoyt Brook and Maine State Route 41.
U.S. Route 202, with Maine State Routes 11 and 100, passes through the central part of the CDP, passing just south of the village center. US 202 leads east 10miles to Augusta, the state capital, and southwest to Lewiston. Routes 41 and 133 pass through the village center. Route 41 leads north 6miles to the center of Readfield, while Route 133 leads northwest to Livermore Falls.
According to the United States Census Bureau, the Winthrop CDP has a total area of 18.7sqkm, of which 14.4sqkm are land and 4.2sqkm, or 22.58%, are water.[2] The Winthrop Lakes network drains via Cobbosseecontee Lake and Stream southeast to the Kennebec River at Gardiner.
As of the census[4] of 2000, there were 2,893 people, 1,188 households, and 780 families residing in the CDP. The population density was 520.7sp=usNaNsp=us. There were 1,344 housing units at an average density of 241.9sp=usNaNsp=us. The racial makeup of the CDP was 98.00% White, 0.52% Black or African American, 0.35% Native American, 0.38% Asian, 0.07% from other races, and 0.69% from two or more races. Hispanic or Latino of any race were 0.41% of the population.
There were 1,188 households, out of which 29.4% had children under the age of 18 living with them, 51.2% were married couples living together, 11.9% had a female householder with no husband present, and 34.3% were non-families. 28.0% of all households were made up of individuals, and 10.2% had someone living alone who was 65 years of age or older. The average household size was 2.30 and the average family size was 2.81.
In the CDP the population was spread out, with 21.7% under the age of 18, 6.5% from 18 to 24, 25.5% from 25 to 44, 25.3% from 45 to 64, and 21.0% who were 65 years of age or older. The median age was 43 years. For every 100 females there were 95.6 males. For every 100 females age 18 and over, there were 91.5 males.
The median income for a household in the CDP was $38,403, and the median income for a family was $47,875. Males had a median income of $33,826 versus $26,732 for females. The per capita income for the CDP was $19,075. About 7.2% of families and 9.6% of the population were below the poverty line, including 12.4% of those under age 18 and 10.8% of those age 65 or over.