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ZIP Code 06870
Old Greenwich, CT, Western Connecticut Planning Region
Population
7,864
Land area
2.3sq mi
People per sq mi
3,468
City
Old Greenwich
ZIP 06870 and nearby ZIP codes
ZIP 06870 at a glance
- ZIP 06870 (Old Greenwich) is about 4.6 times as dense as Connecticut as a whole.
- The median household income is more than $250,000, the highest bracket the Census Bureau reports.
- A typical owner-occupied home is valued at $1,788,700 (about 4.9 times the Connecticut figure) and median rent is more than $3,500 a month.
Local data for ZIP 06870
Counts from official public data
Housing and community stats
ZIP 06870, American Community Survey 2020-2024
Median household income
$250,000+
Poverty rate
3.4%
Median home value
$1,788,700
Median rent
$3,500+/mo
Homeownership
83.9%
Bachelor's or higher
85.4%
Median age
40.0
Average commute
32.8 min
Economy and federal money
Businesses, pandemic loans and political donations
Business establishments
242
ZIP Business Patterns 2023
Employees
2,476
$448M annual payroll
PPP loans
$25.8M
380 loans
Campaign donations
$1.6M
17% D, 3% R, 2026 cycle
Environment and hazard risk
ZIP 06870, from FEMA, NOAA and EPA
Natural hazard risk
Relatively High
Top: strong wind
Storm events since 1996
1,793
Countywide, mostly thunderstorm wind
Flood insurance policies
5,431
3.3% of homes, county
July high / Jan low
85° / 22°F
51.6 inches of rain a year
Health statistics
Share of adults in ZIP 06870, CDC PLACES estimates
Obesity
21.5%
U.S. 33.3% -11.8 pts
Diabetes
7.0%
U.S. 12.1% -5.1 pts
Smoking
5.8%
U.S. 12.8% -7.0 pts
Uninsured (18-64)
4.6%
U.S. 11.1% -6.5 pts
Frequently asked questions
- What city is ZIP code 06870?
- ZIP code 06870 is in Old Greenwich, CT (Western Connecticut Planning Region).
- What county is ZIP code 06870 in?
- ZIP code 06870 is mostly in Western Connecticut Planning Region, Connecticut.
- How many people live in ZIP code 06870?
- About 7,864 people live in the 06870 ZIP Code Tabulation Area, based on American Community Survey 5-year estimates.
Source: U.S. Census Bureau (ZIP Code Tabulation Areas, American Community Survey) · Data as of 12/31/2023. ZIP Code Tabulation Areas closely match, but are not identical to, USPS ZIP code delivery areas.