| Population | 650 (2010), see rank |
| House Units | 262, see rank |
| Race | Whites:86%, Hispanics:13.5%, Blacks:0.8%, Asians:7.8%, Others:5.4% |
| Total Area: | 0.16 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 |