Monroe County is a county in the U.S. state of New York, located along Lake Ontario's southern shore. As of 2022, the population was 752,035, according to Census Bureau estimates. Its county seat and largest city is Rochester. The county is named after James Monroe, the fifth president of the United States. Monroe County is part of the Rochester, NY Metropolitan Statistical Area. The county is part of the Finger Lakes region of the state.

Schuyler County is a county in the U.S. state of New York. As of the 2020 census, the population was 17,898, making it the second-least populous county in New York. The county seat is the village of Watkins Glen. The name is in honor of General Philip Schuyler, one of the four major generals in the Continental Army in the American Revolutionary War. The county is part of the Southern Tier region of the state.