Connecticut County records vary widely from county to county in both quality and quantity. Some have been carefully preserved while others have been much abused and neglected. Some Connecticut records have simply disappeared. For genealogists doing research in Connecticut there is no effective replace for an on-site search of county courthouse records. For Definitions of all court terms see the Genealogy Encyclopedia

Counties were mainly developed as a way to denote county court districts. In 1959, all counties were dissolved. Federal census returns prior to that year were organized according to county. When the 1790 federal census was taken, there were eight counties in Connecticut. Certain towns were located close to county borders and were recorded as part of different county censuses.

Connecticut Counties

Connecticut is divided into 8 counties. Four of them were created in 1666, during the first consolidation of the colony of Connecticut from a number of smaller colonies. Two counties were created during colonial times, and two counties, Middlesex and Tolland, were created after American independence (both in 1785). Six of the counties are named for locations in England, where many early Connecticut settlers originated. Although Connecticut is divided into counties, there is no county government in Connecticut and local government consists of cities and towns. County government was abolished in Connecticut in 1960, although the names remain for geographical purposes. Counties are, however, still used by the state to organize its judicial and state marshal system.
See also a list of links to county and county seat government run websites.

List of Connecticut Counties

CountyDate FormedParent CountyCounty Seat
Fairfield1666Original county created from Colonial LandsBridgeport
Hartford1666Original county created from Colonial LandsHartford
Litchfield1751Fairfield and Hartford countiesLitchfield
Middlesex1785 Hartford and New London countiesMiddletown
New Haven1666Original county created from Colonial LandsNew Haven
New London 1666Original county created from Colonial LandsNew London
Tolland1786 Hartford and Windham countiesRockville
Windham1726 Hartford and New London countiesWillimantic & Putnam


List of Connecticut Extinct Counties

Connecticut has counties that no longer exist. They were established by the state, provincial, or territorial government. Most of these counties were created and disbanded in the 19th century; county boundaries have changed little since 1900 in the vast majority of states. These counties need to be looked at when doing genealogy research. Pay close attention where the courthouse records went to if the county was abolished or combined with another county.

  • Westmoreland County was a county established by Connecticut in 1776 (the present day area of Wyoming Valley, Pennsylvania), until it was ceded to Pennsylvania in 1784. It briefly seceded to become the State of Westmoreland


List of Connecticut Counties with Burned Courthouses

The damage to courthouses greatly has a bearing on genealogists in every way. No only are these historic structures torn from our lifetimes, so are the records they housed: marriage, wills, probate, land records, and others. Once destroyed they’re lost forever. Although they have been placed on mircofilm, computers and film burn too. The most heartbreaking side of this is the reason that nearly all of our courthouses are destroyed at the hands of arsonist. Although, not all records were lost. Many Connecticut counties have suffered a loss of records due to
courthouse fires, floods, and theft.

  • Litchfield County Courthouse in 1887, No records were lost.
TownDate FormedParent TownsCounty
Old Lyme1855 (as South Lyme; New London renamed, 1857)LymeNew London
Brookfield1788Danbury/New Milford/NewtonFairfield
Stratford1639——Fairfield
Sherman1802New FairfieldFairfield
Bethel1855DanburyFairfield
Shelton1789StratfordFairfield
Weston1787FairfieldFairfield
Redding1767FairfieldFairfield
Ridgefield1709——Fairfield
Trumbull1797StratfordFairfield
Danbury1687——Fairfield
Darien1820StamfordFairfield
Westport1835Fairfield/Norwalk/WestonFairfield
Stamford1641——Fairfield
Norwalk1651——Fairfield
Newtown1711——Fairfield
Easton1845WestonFairfield
New Fairfield1740——Fairfield
Bridgeport1821Stratford/FairfieldFairfield
Fairfield1639originalFairfield
New Canaan1801Norwalk/StamfordFairfield
Greenwich1665Stamford (part of New Amsterdam, 1642–56)Fairfield
Monroe1823HuntingtonFairfield
Wilton1802NorwalkFairfield
Marlborough1803Colchester/Glastonbury/HebronHartford
Simsbury1670——Hartford
Wethersfield1634——Hartford
Plainville1869FarmingtonHartford
East Granby1858Granby/Windsor LocksHartford
Bloomfield1835Windsor/Farmington/Simsbury/HartfordHartford
Canton1806SimsburyHartford
East Hartford1783HartfordHartford
Windsor Locks1854WindsorHartford
Newington1871WethersfieldHartford
East Windsor1768WindsorHartford
Windsor1633——Hartford
Berlin1785Farmington/Middletown/WethersfieldHartford
Enfield1683 (part of Massachusetts until 1749)Hartford
Southington1779FarmingtonHartford
Avon1830FarmingtonHartford
South Windsor1845East WindsorHartford
Farmington1645originalHartford
Rocky Hill1843WethersfieldHartford
Glastonbury1690WethersfieldHartford
New Britain1850BerlinHartford
Granby1786SimsburyHartford
Bristol1785FarmingtonHartford
West Hartford1854HartfordHartford
Manchester1823East HartfordHartford
Suffield1674 (part of Massachusetts until 1749)——Hartford
Burlington1806BristolHartford
Hartland1761——Hartford
Hartford1635Hartford
Bridgewater1856New MilfordLitchfield
Winchester1771——Litchfield
Kent1739——Litchfield
Watertown1780WaterburyLitchfield
Washington1779Woodbury/Litchfield/Kent/New MilfordLitchfield
Warren1786KentLitchfield
Barkhamsted1779——Litchfield
Litchfield1719——Litchfield
Torrington1740——Litchfield
Thomaston1875PlymouthLitchfield
Beacon Falls1871Bethany/Oxford/Seymour/NaugatuckLitchfield
Woodbury1673——Litchfield
Bethlehem1787WoodburyLitchfield
Harwinton1737Litchfield
Canaan1739——Litchfield
Morris1859LitchfieldLitchfield
Sharon1739——Litchfield
Goshen1739Litchfield
New Hartford1738——Litchfield
Salisbury1741——Litchfield
Roxbury1796WoodburyLitchfield
New Milford1712——Litchfield
Colebrook1779Litchfield
Cornwall1740——Litchfield
Norfolk1758——Litchfield
North Canaan1858CanaanLitchfield
Plymouth1795WatertownLitchfield
Middletown1651——Middlesex
Durham1708——Middlesex
Haddam1668New LondonMiddlesex
Chester1836SaybrookMiddlesex
Killingworth1667——Middlesex
Westbrook1840SaybrookMiddlesex
Middlefield1866MiddletownMiddlesex
Cromwell1851MiddletownMiddlesex
Clinton1838KillingworthMiddlesex
Deep River1635 (as Saybrook;renamed, 1947)Middlesex
Portland1841ChathamMiddlesex
East Hampton1767 (as Chatham; renamed, 1915)MiddletownMiddlesex
Essex1852SaybrookMiddlesex
East Haddam1734HaddamMiddlesex
Old Saybrook1854 (see Essex for explanation of the town’s formation)Old Saybrook (now named Essex)Middlesex
Woodbridge1784New Haven/MilfordNew Haven
Orange1822Milford/New HavenNew Haven
Hamden1786New HavenNew Haven
Guilford1643New Haven
Derby1675——New Haven
Waterbury1686——New Haven
Wallingford1670New HavenNew Haven
Prospect1827Cheshire/WaterburyNew Haven
North Haven1786New HavenNew Haven
North Branford1831BranfordNew Haven
East Haven1785New HavenNew Haven
West Haven1921OrangeNew Haven
Madison1826GuilfordNew Haven
Bethany1832WoodbridgeNew Haven
New Haven1638originalNew Haven
Meriden1806WallingfordNew Haven
Middlebury1807Waterbury/Woodbury/SouthburyNew Haven
Seymour1850DerbyNew Haven
Naugatuck1844Waterbury/Bethany/OxfordNew Haven
Ansonia1889DerbyNew Haven
Cheshire1780WallingfordNew Haven
Wolcott1796Waterbury/SouthingtonNew Haven
Branford1685New HavenNew Haven
Oxford1798Derby/SouthburyNew Haven
Milford1639——New Haven
Southbury1787WoodburyNew Haven
Lyme1667SaybrookNew London
Griswold1815PrestonNew London
Bozrah1786NorwichNew London
Franklin1786NorwichNew London
Stonington1662——New London
Colchester1698——New London
Salem1819Colchester/Lyme/MontvilleNew London
Groton1705New LondonNew London
New London1648——New London
East Lyme1839Lyme/WaterfordNew London
Sprague1861Lisbon/FranklinNew London
Lisbon1786NorwichNew London
Voluntown1721——New London
Preston1687——New London
Ledyard1836GrotonNew London
Lebanon1700——New London
North Stonington1807StoningtonNew London
Waterford1801New LondonNew London
Norwich1662——New London
Montville1786New LondonNew London
Tolland1715——Tolland
Andover1848Coventry/HebronTolland
Stafford1719——Tolland
Union1734——Tolland
Vernon1808BoltonTolland
Columbia1804LebanonTolland
Bolton1720——Tolland
Mansfield1702WindhamTolland
Somers1734Enfield (part of Massachusetts until 1749)Tolland
Hebron1708——Tolland
Ellington1786East WindsorTolland
Willington1727——Tolland
Coventry1712——Tolland
Hampton1786Windham/Pomfret/Brooklyn/Canterbury/MansfieldWindham
Thompson1785KillinglyWindham
Scotland1857WindhamWindham
Putnam1855Thompson/Pomfret/KillinglyWindham
Pomfret1713——Windham
Plainfield1699——Windham
Killingly1708——Windham
Sterling1794VoluntownWindham
Windham1692——Windham
Eastford1847AshfordWindham
Chaplin1822Windham/Hampton/MansfieldWindham
Canterbury1703PlainfieldWindham
Brooklyn1786Pomfret/CanterburyWindham
Ashford1714——Windham
Woodstock1690—— (called New Roxbury at first as a part of Massachusetts until 1749)Windsor