Western Connecticut, Connecticut has 64 ZIP codes in this list, from 06404 to 06927. They cover 28 places, among them Stamford, Norwalk, Danbury and Westport.
The ZIP code areas of Western Connecticut add up to about 532 square miles of land (1,379 sq km) as the Census Bureau draws them. The largest is 06776 (New Milford), with 56.2 square miles.
Places with more than one code here: Stamford (17 codes), Norwalk (10 codes), Danbury (6 codes).
Using these codes
In an address, the ZIP code comes last, after the city and the two-letter state: Botsford, CT 06404.
Tap a ZIP code to open it in the look-up, with a copy button for the address line.
A code can cross a county line, and one town can have several codes. The table shows the main place of each code.
"No area" means the Census Bureau draws no area for that code. Such codes are usually for post office boxes or a single building.
Places and counties: GeoNames. Areas: U.S. Census Bureau, 2024 ZIP Code Tabulation Areas. Checked in November 2026. This site is not connected with the United States Postal Service; for mailing, confirm the address with USPS.
ZIP Codes