ZIP code 06870
Where is ZIP code 06870?
Old Greenwich, Connecticut
Fairfield County · Standard ZIP code
ZIP code 06870 belongs to Old Greenwich, Connecticut in Fairfield County. 06870 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 203 and 475. About 7,864 people live in the 06870 area, where the median household income is $250,001. The closest ZIP codes are 06910 (Stamford, 0.5 mi northeast), 06878 (Riverside, 0.7 mi west) and 06926 (Stamford, 1.5 mi east).
| ZIP code | 06870 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Old Greenwich |
| State | Connecticut (CT) |
| County | Fairfield County |
| Time zone | Eastern Time · now |
| Area codes | 203, 475 |
| Coordinates | 41.0354, -73.5673 map |
| 3-digit prefix | 068 |
Population and income in 06870
| Population | 7,864 · lower than 52% of Connecticut ZIP codes |
|---|---|
| People per square mile | 3,469 · higher than 86% of Connecticut ZIP codes |
| Median age | 40 years · lower than 71% of Connecticut ZIP codes |
| Men / women | 51% / 49% |
| Median household income | $250,001 · higher than 98% of Connecticut ZIP codes |
| Income per person | $144,459 |
| Below the poverty line | 3.4% |
| Bachelor’s degree or higher | 85% of adults 25+ |
| Median home value | $1,788,700 · higher than 99% of Connecticut ZIP codes |
| Median rent | $3,501 a month |
| Housing units | 2,922 |
| Households | 2,756 (2.85 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 2.27 sq mi (plus 1.48 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 06870. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 06870
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 06910 | Stamford, CT | 0.5 mi NE | Standard |
| 06878 | Riverside, CT | 0.7 mi W | Standard |
| 06926 | Stamford, CT | 1.5 mi E | Unique |
| 06807 | Cos Cob, CT | 1.8 mi NW | Standard |
| 06901 | Stamford, CT | 1.9 mi NE | Standard |
| 06904 | Stamford, CT | 1.9 mi NE | PO Box only |
| 06911 | Stamford, CT | 1.9 mi NE | PO Box only |
| 06912 | Stamford, CT | 1.9 mi NE | PO Box only |
| 06913 | Stamford, CT | 1.9 mi NE | Unique |
| 06914 | Stamford, CT | 1.9 mi NE | Unique |
| 06927 | Stamford, CT | 1.9 mi NE | Unique |
| 06902 | Stamford, CT | 2.1 mi NE | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 06870 or measure the distance to another ZIP code.
How to address mail to 06870
123 MAIN ST
OLD GREENWICH CT 06870
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (06870-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 06870?
- 06870 is a Old Greenwich, Connecticut ZIP code.
- What county is 06870 in?
- ZIP code 06870 is in Fairfield County, Connecticut.
- What time zone is ZIP code 06870 in?
- 06870 is in the Eastern Time zone (America/New_York).
- What area code is 06870?
- Phone numbers in ZIP code 06870 use area codes 203 and 475.
- What is the population of ZIP code 06870?
- About 7,864 people live in ZIP code 06870, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 06870?
- The median household income in 06870 is $250,001 a year, higher than 98% of Connecticut ZIP codes.
- What ZIP codes are near 06870?
- The nearest ZIP codes to 06870 are 06910 (Stamford, 0.5 miles), 06878 (Riverside, 0.7 miles), 06926 (Stamford, 1.5 miles) and 06807 (Cos Cob, 1.8 miles).