Trumansburg is a village in Tompkins County, New York, United States. The population was 1,797 at the 2010 census. The name incorporates a misspelling of the surname of the founder, Abner Treman. The Tremans spelled their surname several different ways; "Truman," however, was not one of them. The village's application for a post office established the present spelling. The Village of Trumansburg is located within the Town of Ulysses and is northwest of Ithaca, New York.

Tompkins County is a county located in the U.S. state of New York. As of the 2020 census, the population was 105,740. The county seat is Ithaca. The name is in honor of Daniel D. Tompkins, who served as Governor of New York and Vice President of the United States. The county is part of the Southern Tier region of the state.