Ontario County on the map of New York 2024. Cities, roads, borders and directions in Ontario County of New York.

Ontario County is located in the western part of New York the state. This famous county was established back in 1789. The county seat of Ontario County is Canandaigua. The total population of the county exceeds 113 thousand residents. The county's area is 662 square miles. This map shows the borders of Ontario County as well as neighboring counties, including major highways and natural objecsts as of 2024. Zoom in or out of the map using the plus/minus panel. Move the center of this map by dragging it. Also check out the satellite map of Ontario County.