| Population | 357 (2010), see rank |
| House Units | 126, see rank |
| Race | Whites:89.4%, Hispanics:5.6%, Blacks:0.6%, Asians:4.8%, Others:5.3% |
| Total Area: | 0.29 sq mi |
| Water Area: | 0.00 sq mi (0.00%) |
| State: | Connecticut |
| Area: | Bridgeport-Stamford-Norwalk, CT |
| County: | Fairfield County |
| City: | Cos Cob |
| Census Tract: | 010202 |
| Census Block Group: | 010202-2 |