Cost of Living in Cos Cob, CT

With a cost of living index of 207, Cos Cob, CT is one of the most expensive cities in the United States. Living here is 107% more expensive than the national average and 82% above the Connecticut state average of 125. Cos Cob is a smaller community of 7,354 residents, where everyday costs can differ substantially from nearby larger cities.

Housing costs are the biggest factor in Cos Cob's cost of living. The median monthly rent is $2,574 (95% above the US median of $1,319), and the median home value sits at $1,149,500 (277% above the national median of $304,900). At current prices, the median home costs roughly 6.5x the median household income — a challenging ratio that puts homeownership out of reach for many residents.

The median household income in Cos Cob is $176,602, which is 135% higher than the national median of $75,149. Residents spend roughly 17% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum. While incomes are above average, they more than offset the higher cost of living.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.