ZIP code 06840
Where is ZIP code 06840?
New Canaan, Connecticut
Fairfield County · Standard ZIP code
ZIP code 06840 belongs to New Canaan, Connecticut in Fairfield County. 06840 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, 475 and 914. About 20,870 people live in the 06840 area, where the median household income is $250,001. The closest ZIP codes are 06850 (Norwalk, 3.6 mi southeast), 06903 (Stamford, 4 mi west) and 06907 (Stamford, 4.1 mi south).
| ZIP code | 06840 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | New Canaan |
| State | Connecticut (CT) |
| County | Fairfield County |
| Time zone | Eastern Time · now |
| Area codes | 203, 475, 914 |
| Coordinates | 41.151, -73.4944 map |
| 3-digit prefix | 068 |
Population and income in 06840
| Population | 20,870 · higher than 78% of Connecticut ZIP codes |
|---|---|
| People per square mile | 941 · higher than 61% of Connecticut ZIP codes |
| Median age | 42.1 years · lower than 61% of Connecticut ZIP codes |
| Men / women | 47% / 53% |
| Median household income | $250,001 · higher than 98% of Connecticut ZIP codes |
| Income per person | $143,695 |
| Below the poverty line | 3.7% |
| Bachelor’s degree or higher | 83% of adults 25+ |
| Median home value | $1,611,900 · higher than 98% of Connecticut ZIP codes |
| Median rent | $3,401 a month |
| Housing units | 7,747 |
| Households | 7,153 (2.91 people on average) |
| Owners / renters | 84% / 16% |
| Land area | 22.18 sq mi (plus 0.33 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 06840. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 06840
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 06850 | Norwalk, CT | 3.6 mi SE | Standard |
| 06903 | Stamford, CT | 4 mi W | Standard |
| 06907 | Stamford, CT | 4.1 mi S | Standard |
| 06897 | Wilton, CT | 4.6 mi NE | Standard |
| 06856 | Norwalk, CT | 4.7 mi SE | PO Box only |
| 06851 | Norwalk, CT | 4.8 mi E | Standard |
| 06858 | Norwalk, CT | 4.9 mi SE | Unique |
| 06905 | Stamford, CT | 5 mi SW | Standard |
| 06854 | Norwalk, CT | 5.1 mi SE | Standard |
| 06820 | Darien, CT | 5.1 mi S | Standard |
| 10576 | Pound Ridge, NY | 5.5 mi NW | Standard |
| 06906 | Stamford, CT | 5.9 mi S | Standard |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 06840 or measure the distance to another ZIP code.
How to address mail to 06840
123 MAIN ST
NEW CANAAN CT 06840
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (06840-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 06840?
- 06840 is a New Canaan, Connecticut ZIP code.
- What county is 06840 in?
- ZIP code 06840 is in Fairfield County, Connecticut.
- What time zone is ZIP code 06840 in?
- 06840 is in the Eastern Time zone (America/New_York).
- What area code is 06840?
- Phone numbers in ZIP code 06840 use area codes 203, 475 and 914.
- What is the population of ZIP code 06840?
- About 20,870 people live in ZIP code 06840, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 06840?
- The median household income in 06840 is $250,001 a year, higher than 98% of Connecticut ZIP codes.
- What ZIP codes are near 06840?
- The nearest ZIP codes to 06840 are 06850 (Norwalk, 3.6 miles), 06903 (Stamford, 4 miles), 06907 (Stamford, 4.1 miles) and 06897 (Wilton, 4.6 miles).