Darien ZIP code, Connecticut
The ZIP code for Darien, CT is 06820, and its area codes are 203 and 475.
- USPS city name
- 1 ZIP code
- Population
- 21,936
- County
- Fairfield County
- State
- Connecticut
Darien in numbers
About 21,936 people live in Darien, in 7,234 households. The median owner-occupied home is valued at $1,822,400 (5.0 times the Connecticut median).
| Population | 21,936 |
|---|---|
| Households | 7,234 |
| Median home value | $1,822,400 |
U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Darien. Survey estimates carry margins of error, wider for small places. Sources and methods.
ZIP codes addressed as Darien
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
06820 | Darien , CT | Standard | 21,936 | $250,000+ | $1,822,400 |
Map of Darien ZIP codes
The ZIP codes of Darien, 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 Darien
The nearest larger towns are Norwalk (92,187 people, 3.3 mi), Stamford (137,144 people, 3.4 mi) and Port Chester, NY (31,102 people, 11 mi).
| Town | Population | Distance |
|---|---|---|
| Noroton Heights | 2,782 | 0.9 mi |
| Noroton | 5,539 | 1.3 mi |
| Tokeneke | 2,951 | 1.8 mi |
| Norwalk | 92,187 | 3.3 mi |
| Stamford | 137,144 | 3.4 mi |
| New Canaan | 6,896 | 4.6 mi |
| Old Greenwich | 6,936 | 6.0 mi |
| Cos Cob | 7,546 | 6.1 mi |
| Riverside | 8,954 | 6.3 mi |
| Saugatuck | 2,925 | 6.3 mi |
| Old Hill | 2,990 | 7.3 mi |
| Compo | 3,410 | 7.4 mi |
| Westport Village | 3,021 | 7.8 mi |
| Greenwich | 14,792 | 8.4 mi |
More nearby: every ZIP code in Fairfield County · Connecticut ZIP codes
Cite this page
zipcodes.pro. “Darien, CT ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/ct/darien
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