Cost of Living in Cos Cob, CT

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F
115%
Overall NAT. AVG.
7%
Groceries NAT. AVG.
357%
Housing NAT. AVG.
Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
The cost of living index is based on a national average of 100. For example, if the cost of living score is 90, then the estimated cost of living is 10% lower than the national average. If the score is 110, then the estimated cost of living is 10% higher than average. The overall index is calculated using weighted estimates across major everyday expense categories, including housing (30%), groceries (16%), transportation (12%), healthcare (10%), utilities (8%), lifestyle and entertainment (8%), household expenses (8%), and education and childcare (8%). All values are AI-assisted city-level estimates designed for directional comparisons.
Index Cos Cob Connecticut National
Cost of living215118100
Groceries107106100
Health care109111100
Housing457139100
Transportation111107100
Utilities109108100
Lifestyle & Entertainment116110100
Household Items107106100
Education & Childcare126116100
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Homes For Sale In Cos Cob, CT

property for sale

34 1/2 Orchard St

Cos Cob, CT
property for sale

86 Dandy Dr

Cos Cob, CT
property for sale

20 Ridge Rd

Cos Cob, CT
property for sale

12 Old Post Rd

Cos Cob, CT

Cost Of Living Quick Facts

  • The cost of living in Cos Cob is 83% higher than the Connecticut average
  • The cost of living in Cos Cob is 115% higher than the national average
  • Cos Cob housing is 357% higher than the national average
  • Connecticut general sales tax is 24% higher than the national average
  • Connecticut state income tax is 16% higher than the national average

Most Affordable Places to Live in and Around Cos Cob

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      Salary Calculator

      This is how much you would need to earn in
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      Groceries index
      Health care index
      Housing index
      Transportation index
      Utilities index
      Lifestyle index
      Household index
      Educare index

      Median Income & Debt-To-Income Ratio

      Median Income Per Year Per Month Max Budget (28% DTI) Max Budget (36% DTI)
      Owners$288,091$24,008$6,722$8,644
      Renters$94,051$7,838$2,194$2,822
      A good way to judge both the affordability of the housing and the cost of living in Cos Cob is by simply calculating the maximum that should be spent on housing, otherwise known as the debt-to-income ratio (DTI). The plan is to avoid spending more than 28 percent of the gross income on costs that pertain to housing and no more than 36 percent on all expenses and debts. Cos Cob has a median income of about $288,091 for people who own homes. Based on that number, a maximum of $6,722 should be spent on expenses related to housing. Renters have a slightly different median income, which is $94,051. Based on this average, renters should spend no more than $2,194 on all rental costs if they want to maintain a non-impoverished standard of living.

      Connecticut Sales Tax

      State General Sales Tax With Max Surtax
      Connecticut 6.35% 6.35%

      Connecticut Income Tax

      State Income Tax (Low) Income Tax (High)
      Connecticut 3% 6.99%

      Nearby cities with low cost of living

      City Population Cost of Living Index National Avg.
      Cannondale, CT4561099.3%
      Greenville CDP (Greene County), NY6161066.1%
      Hartsdale, NY3,30813433.7%
      Mount Vernon, NY69,13013333.3%
      Ossining, NY25,92413635.9%
      Cos Cob, CT7,278215115.3%

      Cities with similar population

      City Population Cost of Living Index National Avg.
      Archbald, PA7,275972.6%
      St. Augustine Beach, FL7,27113636.2%
      Cottage Grove, WI7,27011414.1%
      Hudson Falls, NY7,2861000.1%
      Clarkston Heights-Vineland, WA7,28611313.4%
      Cos Cob, CT7,278215115.3%
      Date & Last Updated: These cost of living estimates reflect 2026 modeled data using U.S. Census housing inputs and AI-assisted city-level pricing models.
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