Geneseo is the name of a town and its village in Livingston County in western New York, USA, outside of Rochester, New York. The town's population is approximately 9,600, of which about 7,600 live in the village. The English name "Geneseo" is an anglicization of the Iroquois name for the earlier Iroquois town there, Gen-nis-he-yo (which means "beautiful valley"). Entirely contained within the western part of the town at the junction of Routes 39, 63, and U.S. 20A is the village of Geneseo, the county seat of Livingston County. A portion of the village — the Geneseo Historic District — was designated a National Historic Landmark by the United States Department of the Interior in 1991.