Cos Cob

Cos Cob

Cos Cob is a neighborhood in the town of Greenwich.  Located on the Connecticut Gold Coast, Cos Cob sits on the western side of the Mianus River.

Cos Cob has earned the following rankings from

  • #5         Places with the Best Public Schools in Connecticut
  • #5         Suburbs with the Best Public Schools in Connecticut
  • #11       Best Suburbs to Live in Connecticut

The community name is derived from the Coe family. In 1641 Robert Coe moved to the Stamford plantation and became one of its leading figures. At about the same time, he encouraged a cousin (John Coe) to sail from England and settle at the mouth of the Mianus River where he was granted 5 acres (20,000 m2) of land.

John built a sea wall at the mouth of the river to protect low lying lands and to provide a safe moorage for small craft. A sea wall at that time was referred to as a “cob” — and thus it became Coes’ cob, and eventually shortened to Cos Cob.

In the late 19th and early 20th centuries, a group of artists, many of them American Impressionists, gathered during the summer months and established the American Impressionist Cos Cob Art Colony.  Today, the Greenwich Art Society, an off-spring of the group, continues  to support local arts in town.

In 2015, Forbes ranked Cos Cob the 287th wealthiest place in the US with a median sales price of $1,329,107.


Total Population 7,396 Median Household Income $161,479
Population in Households 7,370 Average Household Income $220,560
Population in Families 6,419 Per Capita Income $82,220
Population in Group Qrtrs 26
Population Density2 2,166
Diversity Index3 43
Total Housing Units 2,912 (100%) Total Households 2,754
Owner Occupied HU 1,868 (64.1%) Average Household Size 2.68
Renter Occupied HU 886 (30.4%) Family Households 2,008
Vacant Housing Units 158 ( 5.4%) Average Family Size 3
Median Home Value $1,125,773
Average Home Value $1,235,546

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