Darien, CT ZIP Codes, Coordinates & Counties
Darien, Connecticut has 1 ZIP code in Fairfield county. The approximate center of Darien is 41.079, -73.482. Darien has about 35,615 known street addresses.
ZIP codes in Darien, CT
| ZIP Code | County | Latitude | Longitude |
|---|---|---|---|
| 06820 | Fairfield | 41.079 | -73.482 |
Counties Darien spans
Fairfield
Most common streets in Darien
Post, Boston Post, Heights, West, Hoyt, Middlesex, Mansfield, Brookside, Noroton, Maplewood
Frequently asked questions
What ZIP codes are in Darien, CT?
Darien, Connecticut has 1 ZIP code, ranging from 06820 to 06820. The full list, with each ZIP's county and coordinates, is in the table on this page.
What county is Darien, CT in?
Darien is in Fairfield county.
What are the latitude and longitude of Darien, CT?
The approximate center of Darien, Connecticut is latitude 41.079, longitude -73.482. Coordinates for each ZIP code are listed in the table above.
How many ZIP codes does Darien, CT have?
Darien has 1 ZIP code.
How many addresses are in Darien, CT?
Darien, Connecticut has about 35,615 known street addresses in the sthan.io US address database.
What are the most common streets in Darien, CT?
Some of the most common street names in Darien are Post, Boston Post, Heights, West, Hoyt, Middlesex.
What cities are near Darien, CT?
Cities near Darien include Stamford (3 mi), Norwalk (4 mi), Cos Cob (6 mi), New Canaan (6 mi), Old Greenwich (6 mi).
Cities near Darien
Stamford, CT (3 mi) Norwalk, CT (4 mi) Cos Cob, CT (6 mi) New Canaan, CT (6 mi) Old Greenwich, CT (6 mi) Riverside, CT (6 mi) Greenwich, CT (8 mi) Westport, CT (8 mi)
Need this for any US address, in code?
Get the ZIP code, county, and coordinates for any US address through the sthan.io API. Free 100 requests/month, no credit card required.
View the API →Last updated: June 2026 · Data: sthan.io US address database