Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/CT/NEW-CANAAN

New Canaan ZIP code, Connecticut

The ZIP code for New Canaan, CT is 06840, and its area codes are 203 and 475.

USPS city name
1 ZIP code
Population
6,896
Area codes
203, 475

New Canaan in numbers

About 6,896 people live in New Canaan, in 2,736 households. The median household income is $146,700 a year, 53% above the Connecticut median of $95,781 (US: $80,734). The median owner-occupied home is valued at $1,099,400 (3.0 times the Connecticut median), and median gross rent is $3,425 a month. The median age is 43.1; 74.7% of adults 25 and over hold a bachelor's degree or higher (42.5% across Connecticut); the average commute takes 39 minutes.

Population6,896New Canaan6,896
Households2,736New Canaan2,736
Median age43.1New Canaan43.1Connecticut41.1US 38.9
Median household income$146,700New Canaan$146,700Connecticut$95,781US $80,734
Median home value$1,099,400New Canaan$1,099,400Connecticut$366,900US $332,700
Median gross rent$3,425New Canaan$3,425Connecticut$1,488US $1,413
Bachelor's degree or higher74.7%New Canaan74.7%Connecticut42.5%US 35.7%
Mean commute38.5 minNew Canaan38.5 minConnecticut26.5 minUS 26.4 min
Population density4,452 / sq miNew Canaan4,452 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place New Canaan CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as New Canaan

ZIP codes with the USPS city name New Canaan
ZIP City Type Population Median income Median home
06840 New Canaan , CT Standard 20,870 $250,000+ $1,611,900

Map of New Canaan ZIP codes

06840

The ZIP codes of New Canaan, CT, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near New Canaan

The nearest larger towns are Norwalk (92,187 people, 5.0 mi), Stamford (137,144 people, 5.2 mi) and Cos Cob (7,546 people, 8.3 mi).

Towns near New Canaan
TownPopulationDistance
Noroton Heights 2,782 4.7 mi
Norwalk 92,187 5.0 mi
Stamford 137,144 5.2 mi
Noroton 5,539 5.8 mi
Old Hill 2,990 5.8 mi
Tokeneke 2,951 6.3 mi
Saugatuck 2,925 6.6 mi
Westport Village 3,021 6.8 mi
Compo 3,410 7.3 mi
Coleytown 3,472 8.0 mi
Cos Cob 7,546 8.3 mi
Staples 7,340 8.6 mi
Greens Farms 3,229 8.8 mi
Ridgefield 6,970 8.8 mi

More nearby: every ZIP code in Fairfield County · Connecticut ZIP codes

Cite this page

zipcodes.pro. “New Canaan, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/new-canaan

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