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Old Greenwich CDP, CT

ZIP 06870 — Housing & Real Estate

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Wealthy AreaLow Snow AreaRemote Work Hub

Home values, rent, tenure, and housing stock

Housing & Real Estate in ZIP Code 06870

Median Home Value
$1,579,200
Median Rent
$3,500
Affordability Snapshot
$435,000
Est. income to buy

Household income needed for a median home under a 20% down / 6.8% illustrative mortgage model (~$10,144/mo PITI).

18%
Rent-to-Income Ratio

Below the 30% threshold — generally affordable for median earners.

6.9x
Home Price-to-Income Ratio

Well above the 3-5x guideline — challenging for first-time buyers.

37.6 yrs
Price-to-Rent Ratio

Years to break even buying vs renting at median home value and rent.

To comfortably buy a median-priced home in ZIP 06870 in Old Greenwich CDP, CT, a household would need roughly $435,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $10,144. That is about 91% above the local median household income ($227,727), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

Housing Tenure

Owner-occupied majority; balanced tenure mix.

Heating Fuel
Housing Metrics
Owner Occupied
82.2%+26% vs US avg
x
Vacancy Rate
5.9%-43% vs US avg
x
Broadband Access
96.5%+11% vs US avg
x
4+ Bedrooms
24.2%+64% vs US avg
x
Built Pre-1939
6.3%-51% vs US avg
x
Built Post-2014
0.5%-93% vs US avg
x
Rent Burden >30%
30.3%-39% vs US avg
x
Mortgage-Free
31.9%-16% vs US avg
x
$1,579,200
Home Value
$3,500
Rent
1970
Year Built
2012
Moved In

Residents have lived here since ~2012 on average

Housing Structure

Census ACS structure types (single-family, multi-unit, etc.).

  • 1-unit detached75.2%
  • 1-unit attached4.3%
  • 2-9 units3.5%
  • 10+ units17.0%
  • Mobile home & other0.0%

Housing & Real Estate key statistics

Housing statistics
Housing
Median home value$1,579,200
Median rent$3,500
Owner-occupied82.2%
Vacant5.9%
Price-to-income6.9x
Est. income to buy$435,000