Sullivan County, New York Genealogy Guide

Sullivan County, New York (Map It) was created on March 27,1809 from Ulster County. The county was named in honor of John Sullivan (1740–1795), an American Revolutionary War general .

Sullivan County is bordered by Delaware County (north), Ulster County (northeast), Orange County (southeast), Pike County, Pennsylvania (southwest), Wayne County, Pennsylvania (west).

Sullivan County Cities and Towns include Bethel (town), Bloomingburg (village), Callicoon (town), Cochecton (town), Delaware (town), Fallsburg (town), Forestburgh (town), Fremont (town), Highland (town), Jeffersonville (village), Liberty (village), Liberty (town), Livingston Manor, Lumberland (town), Mamakating (town), Monticello (village), Narrowsburg, Neversink (town), Rock Hill, Rockland (town), Roscoe, Smallwood, South Fallsburg, Thompson (town), Tusten (town), Woodridge (village), Wurtsboro (village).

Sullivan County, New York Courthouse Records

Sullivan County, New York Courthouse
Sullivan County, NY Courthouse

The Sullivan County Courthouse is located in Monticello, New York. Also contact local Town Clerks. They are responsible for vast amounts of local information from deeds, property transfers, and genealogical materials. Research on place and road names, the history of property transfers and much more are available through your Town Clerk. They are a tremendous resources. Learn More About State of New York Court, Tax, Land and Probate Records.

Please contact the each clerk's department to confirm mailing address, hours, fees and other information before visiting or requesting information because contact information sometimes changes.  The Clerk's Office DOES NOT DO RESEARCH.  The documents are available to interested parties, barring confidential issues.  Most staff will assist people in finding the materials, but it is up to the individual to do the research.

The following dates indicates what vital, land, probate, and court records are in Sullivan county. The date listed for each category of record is usually the earliest registration filed. The earliest date does not indicate that there are numerous records for that year and does not mean that all such events were actually registered. A fire in 1909 destroyed will volumes 1-7 but all or most of the files survived.

  • Sullivan County Clerk has Land Records from 1809, Court Records from 1809 and Naturalization Records. State court naturalization records remain in custody of the county clerks. Older court naturalization records have been transferred to the National Archives--Northeast Region. The County Clerk is the keeper of most civil and criminal trial court records for Supreme Court and County Court, naturalizations, marriages (1908–35), censuses (Some county clerks' offices hold duplicate copies of some of the State censuses taken periodically between 1825 and 1925 and copies of the federal census), as well as deeds and mortgages.
  • Sullivan County Surrogate Court Clerk has Probate Records from 1811. The County Surrogate Court Clerk maintain records of wills, letters testamentary, letters of administration, orders and decrees, and appointments of guardians; and filed papers, including original wills, petitions for probate (gives date of death and lists next of kin), performance bonds, property inventories (seldom found after ca. 1900), administrator's or executor's accountings, etc. Surrogate's Courts create comprehensive indexes to records and files.
  • Sullivan County Treasurer is responsible for the collection of taxes.
  • Sullivan County Historian maintains archival holdings for virtually every facet of the county’s history. In New York State, every municipality (town, city, village, county) must have an appointed historian. Most of the towns have their own historians as well and each can be contacted. The County Historian may provide access to obituaries, vital records, church records, maps, and family files or journals. Some historians provide search services for their office records and others may refer you to local genealogists who research in the area.

Sullivan County, New York Census Records

Sullivan County, New York Vital Records

Sullivan County, New York Resources

Sullivan County, New York External Links

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