Zip Code 06830
Greenwich, Connecticut — Fairfield County
📍 ZIP code 06830 is in Greenwich, Fairfield County, Connecticut.
ZIP code 06830 is located in Greenwich, Fairfield County, Connecticut. It is a zip code in the Eastern (EST/EDT) Time Zone with an estimated population of 24,919. The area code for ZIP code 06830 is 203.
Quick Answer
Zip code 06830 is in Greenwich, Connecticut (Fairfield County). It has a population of 24,919, median household income of $146,841, and median home value of $1,685,700.
Population
24,919
Income
$146,841
Home Value
$1,685,700
Climate
83°F / 22°F
About Zip Code 06830
Zip code 06830 is located in Greenwich, Connecticut, within Fairfield County. Home to approximately 24,919 residents, this area sits at an elevation of 167 ft and falls within the Eastern (EST/EDT) timezone. The local area code is 203.
The median household income is $146,841 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $1,685,700, and the cost of living index is 250 (150% above the national average of 100).
Summers average a high of 83°F while winters drop to 22°F. The area receives about 48 in of rain and 25 in of snow annually. The zip code covers 13.6 square miles of land area and 4.8 square miles of water.
Key Statistics
24,919
$146,841
$1,685,700
Eastern (EST/EDT)
203
167 ft
13.6 sq mi
43.7
11,065
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Compare With Nearby Zip Codes
| Metric | 06830 | 06807 | 06878 | 06870 | 10573 | 06831 |
|---|---|---|---|---|---|---|
| City | Greenwich, CT | Cos Cob, CT | Old Greenwich, CT | Old Greenwich, CT | Port Chester, NY | Greenwich, CT |
| Population | 24,919 | 7,667 | 8,446 | 7,903 | 40,982 | 14,656 |
| Median Income | $146,841 | $194,492 | $250,001 | $227,727 | $110,612 | $218,785 |
| Home Value | $1,685,700 | $1,228,000 | $1,899,000 | $1,579,200 | $649,900 | $1,483,500 |
| Cost of Living | 250 | 250 | 250 | 250 | 192 | 250 |
| Median Age | 43.7 | 39.3 | 40.7 | 39.9 | 39.8 | 47.6 |
Cost of Living
100 = National Average. Greenwich's cost of living is 150% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
11.5x
Demographics
Zip code 06830 has a population of 24,919 people with a median age of 43.7. There are 11,065 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Greenwich (06830) population trend from 2010 to 2024
↓ -14.8%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
83°F
22°F
48 in
25 in
Greenwich experiences warm summers with average highs around 83°F. Winters are cool with lows averaging 22°F. The area receives about 25 in of snow per year.
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Housing & Economy
Median Home Value
$1,685,700
Median Household Income
$146,841
With 11,065 housing units across 13.6 square miles, 06830 has a housing density of 814 units per square mile. The home price-to-income ratio is 11.5x.
Location & Geography
Latitude
41.0376°
Longitude
-73.6243°
Land Area
13.6 sq mi
Water Area
4.8 sq mi
Nearby Zip Codes
Zip codes closest to 06830 (Greenwich, CT) with distances:
All Zip Codes in Greenwich, CT
Other zip codes serving Greenwich:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 06830's $146,841. A way to compare Greenwich to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 06830 (Greenwich, CT). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Greenwich, Connecticut?
Greenwich, Connecticut uses zip code 06830 along with 1 other zip codes.
What county is zip code 06830 in?
Zip code 06830 is located in Fairfield County, Connecticut.
What is the population of zip code 06830?
The population of zip code 06830 is 24,919 with a median age of 43.7.
Is 06830 in Greenwich, Connecticut?
Yes, zip code 06830 is in Greenwich, Fairfield County, Connecticut. The area code is 203.
Frequently Asked Questions
What city is zip code 06830 in?
Zip code 06830 is in Greenwich, Connecticut. It is part of Fairfield County and uses the Eastern (EST/EDT) timezone.
What is zip code 06830?
Zip code 06830 is a U.S. postal code in Greenwich, Connecticut (Fairfield County). It has a population of 24,919 and covers 13.6 square miles.
What is the population of zip code 06830?
The population of zip code 06830 (Greenwich, CT) is 24,919 with a median age of 43.7. There are approximately 11,065 housing units in this area.
What is the median income in zip code 06830?
The median household income in zip code 06830 (Greenwich, CT) is $146,841 per year. The cost of living index is 250 (100 = national average).
What is the average home price in zip code 06830?
The median home value in zip code 06830 (Greenwich, CT) is $1,685,700. The cost of living index is 250 compared to the national average of 100.
What county is zip code 06830 in?
Zip code 06830 is located in Fairfield County, Connecticut. The primary city is Greenwich.
What is the area code for zip code 06830?
Zip code 06830 in Greenwich, CT uses area code 203. It is located in the Eastern (EST/EDT) timezone.
Is zip code 06830 a good place to live?
Zip code 06830 (Greenwich, CT) has a cost of living index of 250 (100 = national average), a median household income of $146,841, and median home values of $1,685,700. The median age is 43.7. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 06830?
The cost of living index for zip code 06830 (Greenwich, CT) is 250, where 100 represents the national average. This area is above the national average. Median home value: $1,685,700.
What schools serve zip code 06830?
Zip code 06830 in Greenwich, Connecticut is served by the local school district of Fairfield County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.