The population of the CDP was 308 at the 2010 census,[4] out of 2,473 in the entire town of Conesus.

The Conesus CDP includes the hamlet of Conesus on the north side of the valley of South McMillan Creek, as well as the smaller hamlet of Union Corners 0.6 miles (1.0 km) to the north.

New York State Route 15 passes through both hamlets, leading north 7 miles (11 km) to Livonia and southeast the same distance to Springwater.

Geneseo, the Livingston county seat, is 11 miles (18 km) to the northwest by county roads, and the city of Rochester is 33 miles (53 km) to the north.

According to the U.S. Census Bureau, the Conesus CDP has an area of 1.0 square mile (2.7 km2), all of it recorded as land.