ZIP Code 06830
standardSource:
Greenwich · Fairfield County · Connecticut
- Population
- 24,027
- Median income
- $146,654
- Median home value
- $1,660,700
- Bachelor's or higher
- 67.9%
- Land area
- 35.2 sq mi
683/sq mi
▲ 92% vs US
higher than 96% of US ZIPs
▲ 497% vs US
higher than 99% of US ZIPs
Median age 43.6
New York
ZIP code 06830 in Greenwich, Connecticut has a population of 24,027. The median household income is $146,654, which is 92% above the national average. Median home value is $1,660,700, 497% above the US average. 67.9% of residents hold a bachelor's degree or higher.
ZIP code 06830 is classified by USPS as a standard delivery area and covers roughly 35.2 square miles in Greenwich, Fairfield County, Connecticut. The area is home to 24,027 residents, producing a population density of 683 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 06830 against Connecticut and the nation.
On the economic side, the median household income for ZIP 06830 sits at $146,654 (30% above the Connecticut average), while per-capita income is $137,502. The poverty rate stands at 8.6% and the unemployment rate at 7.9%. On housing, the median home value is $1,660,700 (282% above the state average) with median rent at $2,374 per month, and 57.4% of occupied units are owner-occupied, a direct signal of whether 06830 behaves more like a homeowner neighborhood or a renter-heavy ZIP.
Education and household profile round out the picture: 67.9% of adults hold a bachelor's degree or higher, the median age is 43.6, and the average commute is 28 minutes. We also surface 10 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Fairfield County, so you can benchmark 06830 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →
Top industries in ZIP 06830
Top 5 sectors by establishment count
Which industries have the most business establishments in ZIP 06830.
- Finance and insurance
Finance and insurance
269 establishments
- Retail trade
Retail trade
210 establishments
- Professional, scientific, and technical services
Professional, scientific, and technical services
179 establishments
- Other services (except public administration)
Other services (except public administration)
161 establishments
- Health care and social assistance
Health care and social assistance
151 establishments
What this shows Establishment counts come from the Census ZIP Code Business Patterns program, which counts physical business locations rather than employees or revenue.
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 06830, Greenwich, CT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.
Quick Facts
24,027
Population
35.2
Area (sq mi)
683
People / sq mi
New York
Time Zone
standard
ZIP Type
Who lives in ZIP 06830?
43.6
Median Age
46.0%
Male
54.0%
Female
24.2%
Foreign-Born
Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How much do residents earn?
$146,654
Median Household Income
+30% vs state
$137,502
Per Capita Income
8.6%
Poverty Rate
7.9%
Unemployment Rate
27.8 min
Mean Commute Time
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
10,911
Total Housing Units
9,480
Occupied Units
1,431
Vacant Units
2.59
Avg Household Size
Occupancy Type
$1,660,700
Median Home Value
+282% vs state
$2,374
Median Rent
1957
Median Year Built
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
How have home values changed over time?
FHFA House Price Index, annual appreciation data based on repeat sales and appraisals
-16.0%
YoY Change (2024)
228
HPI Index (2000 = 100)
+128%
Total Change Since 2000
Home values in ZIP 06830 have decreased 16.0% over the past year (2024). Since 2000, this ZIP has seen +128% cumulative appreciation.
| Year | Annual Change | HPI Index |
|---|---|---|
| 2020 | -0.1% | 166 |
| 2021 | +12.0% | 186 |
| 2022 | -9.2% | 169 |
| 2023 | +60.8% | 271 |
| 2024 | -16.0% | 228 |
Source: Federal Housing Finance Agency (FHFA) House Price Index, All-Transactions, Five-Digit ZIP Codes (Developmental Index). Index base = 100 in year 2000. Data through 2024. ZIP codes with few transactions may show missing values.
What businesses operate in this ZIP?
Census Bureau data shows 1,519 business establishments in ZIP 06830, employing approximately 30,585 people with a combined annual payroll of $5,239,013,000.
1,519
Businesses
30,585
Employees
$5.2B
Annual Payroll
17
Industry Sectors
| Industry | Establishments | % of Total |
|---|---|---|
| Finance and insurance | 269 | 17.7% |
| Retail trade | 210 | 13.8% |
| Professional, scientific, and technical services | 179 | 11.8% |
| Other services (except public administration) | 161 | 10.6% |
| Health care and social assistance | 151 | 9.9% |
| Accommodation and food services | 109 | 7.2% |
| Real estate and rental and leasing | 91 | 6.0% |
| Construction | 78 | 5.1% |
| Administrative and support and waste management and remediation services | 73 | 4.8% |
| Arts, entertainment, and recreation | 39 | 2.6% |
| Wholesale trade | 34 | 2.2% |
| Information | 34 | 2.2% |
| Educational services | 33 | 2.2% |
| Management of companies and enterprises | 23 | 1.5% |
| Manufacturing | 18 | 1.2% |
| Transportation and warehousing | 11 | 0.7% |
| Utilities | 3 | 0.2% |
Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.
Nearby ZIP Codes
Want a side-by-side? Compare 06830 vs 06807 →
| ZIP Code | City | Population | Distance |
|---|---|---|---|
| 06807 | Cos Cob, CT | 7,150 | 1.9 mi |
| 06878 | Riverside, CT | 8,043 | 2.4 mi |
| 06870 | Old Greenwich, CT | 7,316 | 3.1 mi |
| 06831 | Greenwich, CT | 14,792 | 3.4 mi |
| 10573 | Port Chester, NY | 38,352 | 3.5 mi |
| 06902 | Stamford, CT | 63,406 | 4.1 mi |
| 06901 | Stamford, CT | 6,828 | 4.5 mi |
| 10577 | Purchase, NY | 6,552 | 4.7 mi |
| 06905 | Stamford, CT | 19,649 | 5.0 mi |
| 06906 | Stamford, CT | 9,088 | 5.5 mi |
More ZIP Codes in Fairfield County
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Frequently Asked Questions
What county is ZIP code 06830 in? ▼
What is the population of ZIP code 06830? ▼
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What is the demographic makeup of ZIP 06830? ▼
How many businesses are in ZIP code 06830? ▼
What are the main industries in ZIP code 06830? ▼
How have home values changed in ZIP code 06830? ▼
What is the education level in ZIP code 06830? ▼
What is the average commute time in ZIP 06830? ▼
What percentage of residents own vs. rent in ZIP 06830? ▼
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ZIP Code Research Guides
Official Data Resources for Greenwich, CT
Verify and explore additional data for this area using these official government sources.
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.
Read our methodology , how this data is sourced, computed, and verified.