US ZIP Code
06831

Greenwich, CT

Western Connecticut County  ·  Connecticut

● Active
👥 14,656 Population
💰 $218,785 Median HH Income
▲ 187% above avg ↑ 31% since 2019
🎂 47.6 Median Age ↑ 4% since 2019
🏠 $1,483,500 Median Home Value
▲ 432% above avg ↑ 32% since 2019
🎓 73.5% College Grads
▲ 90% above avg
📊 4.4% Unemployment
▼ 10% below avg ↓ 11% since 2019
ZIP Code Details
ZIP Code06831
CityGreenwich
StateConnecticut (CT)
CountyWestern Connecticut County
Area Code203/475
Elevation302 ft
Latitude41.088724
Longitude-73.658838
TimezoneNew York (DST)
FIPS09190
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 47.2% (6,910) Female 52.9% (7,746) ♀

Race & Ethnicity

White: 85.2%Hispanic: 7.1%Black: 0.9%Asian: 4.4%Other: 2.3%Race
White85.2%
Hispanic7.1%
Black0.9%
Asian4.4%
Other2.3%

Age Breakdown

Under 5
5%
5–17
16%
18–24
5%
25–44
20%
45–64
32%
65+
10%

Key Indicators

Median Age47.6 yrs ↑ 4% since 2019
Avg Household Size2.81
Below Poverty3.7% ▼ 63% below avg
College Grads73.5% ▲ 90% above avg
Unemployment4.4% ▼ 10% below avg
No HS Diploma69 (0.7%)
HS Graduate1,583 (15.3%)
Some College476 (4.6%)
Associates618 (6%)
Bachelors419 (4%)
Graduate Degree7,213 (69.5%)

Education

No HS: 0.7%HS Grad: 15.3%Some College: 4.6%Associates: 6%Bachelors: 4%Graduate: 69.5%Edu
No HS0.7%
HS Grad15.3%
Some College4.6%
Associates6.0%
Bachelors4.0%
Graduate69.5%
Housing & Income

Housing Tenure

Owner: 78.3%Renter: 21.7%Tenure
Owner78.3%
Renter21.7%

Home Value Distribution

Under $50k
2%
$100k–150k
4%
$150k–200k
0%
$200k–300k
2%
$300k–500k
6%
Over $500k
86%

Financials

Median HH Income$218,785 ▲ 187% above avg ↑ 31% since 2019
Median Home Value$1,483,500 ▲ 432% above avg ↑ 32% since 2019
Home/Income Ratio6.8x (nat avg ~3.5x)
Median Rent$3,501/mo ↑ 76% since 2019
Total Units5,939
Vacant Units822
Avg HH Size2.81

Income Distribution

Under $25k
7%
$25k–50k
6%
$50k–75k
6%
$75k–100k
7%
$100k–150k
10%
$150k–200k
9%
Over $200k
55%
Employment & Commute

How People Get to Work

Drove Alone
61%
Public Transit
9%
Walked
3%
Work From Home
27%

Commute Time

Under 15 min
28%
15–30 min
40%
30–45 min
10%
Over 45 min
23%
Housing Stock

Year Built

Before 1940
3%
1940s–1950s
14%
1960s–1970s
16%
1980s–1990s
10%
2000+
57%

Summary

Total Units5,939
Vacant822
Owner Occupied78.3%
Renter Occupied21.7%
Avg HH Size2.81
Frequently Asked Questions
ZIP code 06831 is in Greenwich, CT, in Western Connecticut County.
ZIP code 06831 is located in Connecticut (CT).
ZIP code 06831 is in Western Connecticut County, CT.
ZIP 06831 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 06831 is 14,656 people (ACS 2023).
The median household income in ZIP code 06831 is $218,785 (ACS 2023).
The median home value in ZIP 06831 is $1,483,500 (ACS 2023).
About ZIP Code 06831

ZIP code 06831 is located in Greenwich, Connecticut, within Western Connecticut County. With a population of 14,656, this is a lightly populated ZIP code with a mature community — the median age is 47.6 years. Economically, 06831 is a affluent ZIP code: the median household income of $218,785 is more than double the national average.

Real estate in ZIP code 06831 represents among the most expensive housing markets in the country. The median home value of $1,483,500 is more than double the national average. Renters can expect to pay around $3,501 per month in median rent. Homeownership is strong here — 78.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 32% since 2019.

The population of 06831 is primarily White (85.23%). Residents are highly educated — 73.5% hold a bachelor's degree or higher, which is significantly above the national average. Poverty affects a relatively small share of residents at 3.7%. Household income has grown by 31% since 2019.

The unemployment rate in 06831 stands at 4.4%, which is near the national average. A notably high share of workers — 26% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 58%.

Overall, ZIP code 06831 in Greenwich, CT is characterized as affluent, highly educated, a mature community, and predominantly owner-occupied. With 14,656 residents, a median household income of $218,785, and a median home value of $1,483,500, it offers a clear picture of life in this part of Connecticut.