Connecticut Zip Codes

Connecticut has a total of 282 ZIP codes, reflecting its mix of urban, suburban, and rural communities. All ZIP codes in Connecticut begin with the digits 06, uniquely designating the state in the U.S. postal system. The range starts at 06001 in Avon and extends to 06928 in Stamford, covering all eight counties.

The 060 series predominantly serves central and northern Connecticut, including cities like Hartford, New Britain, and Enfield. The 061 series focuses on Hartford and its immediate surroundings. The 068 and 069 series cover southwestern Connecticut, including the densely populated and affluent Fairfield County, with cities such as Stamford, Greenwich, and Norwalk.

Connecticut’s ZIP codes are crucial for organizing mail delivery in a state characterized by both high population density in urban areas and less dense rural regions. They also serve as a basis for administrative functions such as defining school districts, voting precincts, and municipal boundaries.

In the table below, you can see all Connecticut zip codes listed by city, town and village as well as county affiliated. With 269 cities (and towns) and 8 counties (and county-equivalents), Connecticut is the 29th largest state by population (3,576,452)  and 48th largest one by land area (12,542 km²) in the United States.

The capital of Connecticut is Bridgeport and major cities include New Haven, Hartford, Stamford, and Waterbury.

List of Connecticut Zip Codes by City