Popponesset Island, Massachusetts
| Popponesset Island | |
|---|---|
| Census-designated place | |
 Location in Barnstable County and the state of Massachusetts. |
|
| Coordinates: 41°35′8″N 70°27′32″W / 41.58556°N 70.45889°WCoordinates: 41°35′8″N 70°27′32″W / 41.58556°N 70.45889°W | |
| Country | United States |
| State | Massachusetts |
| County | Barnstable |
| Town | Mashpee |
| Area | |
| • Total | 0.38 sq mi (0.99 km2) |
| • Land | 0.07 sq mi (0.19 km2) |
| • Water | 0.31 sq mi (0.80 km2) |
| Elevation | 0 ft (0 m) |
| Population (2010) | |
| • Total | 26 |
| • Density | 361/sq mi (139.5/km2) |
| Time zone | Eastern (EST) (UTC-5) |
| • Summer (DST) | EDT (UTC-4) |
| FIPS code | 25-55090 |
| GNIS feature ID | 2378206 |
Popponesset Island is a census-designated place (CDP) in the town of Mashpee in Barnstable County, Massachusetts, United States. The population was 26 at the 2010 census.
Popponesset Island is located in the southeastern part of the town of Mashpee. It lies in Popponesset Bay, an arm of Nantucket Sound, and is separated from the mainland of Cape Cod by the narrow Popponesset Creek. The CDP of New Seabury is to the west, across Popponesset Creek, and the Popponesset CDP is to the southwest. The town of Barnstable is to the northeast, across Popponesset Bay.
According to the United States Census Bureau, the Popponesset Island CDP has a total area of 0.39 square miles (1.0 km2). 0.077 square miles (0.2 km2) of it is land, and 0.31 square miles (0.8 km2) of it (81.16%) is water.
During World War II, Popponesset Island was used for amphibious assault training.
As of the census of 2000, there were 39 people, 19 households, and 12 families residing in the CDP. The population density was 188.2/km² (502.1/mi²). There were 69 housing units at an average density of 333.0/km² (888.3/mi²). The racial makeup of the CDP was 100.00% White.
There were 19 households out of which 15.8% had children under the age of 18 living with them, 57.9% were married couples living together, 5.3% had a female householder with no husband present, and 31.6% were non-families. 31.6% of all households were made up of individuals and 21.1% had someone living alone who was 65 years of age or older. The average household size was 2.05 and the average family size was 2.54.
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