New Canaan, CT ZIP code
The ZIP code for New Canaan, Connecticut is 06840. It is in Fairfield County.
- Population in these ZIPs
- 20,870
- Avg. median income
- $250,000population-weighted
- Typical home value
- $2,236,500population-weighted
- Metro area
- Bridgeport-Stamford-Danbury, CT
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New Canaan, CT ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 06840 | 20,870 | $250,001 | $2,236,500 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near New Canaan
Frequently asked questions
What is the ZIP code for New Canaan, CT?
The ZIP code for New Canaan, CT is 06840.
What county is New Canaan, Connecticut in?
New Canaan ZIP codes are in Fairfield County.