List of Connecticut counties - Definition and Overview

List of Connecticut counties:

1. Fairfield County: one of four original counties created in Connecticut in 1666. Historic county seats: Bridgeport and Danbury.
2. Hartford County: one of four original counties created in Connecticut in 1666. Historic county seat: Hartford.
3. Litchfield County: formed in 1751 from parts of Fairfield County, Hartford County, and New Haven County. Historic county seats: New Milford and Winsted.
4. Middlesex County: formed in 1785 from parts of Hartford County and New London County. Historic county seat: Middletown.
5. New Haven County: one of four original counties created in Connecticut in 1666. Historic county seats: New Haven and Waterbury.
6. New London County: one of four original counties created in Connecticut in 1666. Historic county seats: New London and Norwich.
7. Tolland County: formed in 1785 from parts of Hartford County, and Windham County. Historic county seat: Tolland.
8. Windham County: formed in 1726 from parts of Hartford County, and New London County. Historic county seats: Putnam and Willimantic.

Defunct County

1. Westmoreland County: formed in 1776 from land later decided to be part of Pennsylvania. Abolished in 1782.

Note

Since 1960 counties in Connecticut have no governmental function: all legal power is vested in state and town governments.

Source

Connecticut County Formation Map (http://www.negenealogy.com/ct/ct_maps/ct_cf.htm)

map (http://quickfacts.census.gov/qfd/maps/connecticut_map.html)