New Horizons Genealogy

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New Haven County Connecticut Genealogy and History


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Search Free New Haven County Connecticut Genealogy and Family History Records Online including census, cemetery, vital, military and other genealogical and historical records that can be used for your family history research.

New Haven County, Connecticut genealogy and family history page is a place where you can come in and research your genealogy and family history. We also do our best to provide a history of the area, to provide you with an overview of the time in which your ancestors lived.

We regret that we are unable to do personal research for you. All genealogical and family history records we come across are being added to this website. Please keep checking back.


Early History of New Haven County, Connecticut

New Haven County was constituted by an act of the Connecticut General Court on May 10, 1666, along with Hartford County, Fairfield County, and New London County.

As established in 1666, New Haven County consisted of the towns of Milford, New Haven, and Guilford. The town of Wallingford was established in 1670 in unincorporated area north of New Haven and formally added to New Haven County in 1671. In 1675, the town of Derby was established in the area north of Milford. In 1686, the town of Waterbury was established, but was assigned as part of Hartford County. Waterbury was later transferred to New Haven County in 1728. In 1722, most of northwestern Connecticut (except for the town of Litchfield) was placed under the jurisdiction of New Haven County. Eight years later, in 1730, the eastern half of northwestern Connecticut was transferred to the jurisdiction of Hartford County. By mid-1738, with the exception of the towns of New Milford, Sharon, and Salisbury, the entire territory of northwestern Connecticut was under Hartford County. In 1751, Litchfield County was constituted consisting of all the towns in northwestern Connecticut. Between 1780 and 1807, several more towns were established along the northern boundary of New Haven County, resulting in the alteration of the limits of the county. The final boundary alteration leading to the modern boundary resulted from the establishment of the town of Middlebury on October 8, 1807.


New Haven County Genealogy Records


Genealogy Research in New Haven County

Connecticut Counties do not have a county government, the government is at the town level.

Town Clerks have birth, marriage, death and land records

Clerk of the Superior Court has divorce and court records from 1800

Probate Court has probate records.


Adjacent counties

New Haven county is bounded on the south by Long Island Sound.


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