Darien, CT ZIP code
The ZIP code for Darien, Connecticut is 06820. It is in Fairfield County.
- Population in these ZIPs
- 21,936
- Avg. median income
- $250,000population-weighted
- Typical home value
- $2,473,400population-weighted
- Metro area
- Bridgeport-Stamford-Danbury, CT
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Darien, CT ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 06820 | 21,936 | $250,001 | $2,473,400 |
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 Darien
Frequently asked questions
What is the ZIP code for Darien, CT?
The ZIP code for Darien, CT is 06820.
What county is Darien, Connecticut in?
Darien ZIP codes are in Fairfield County.