The community is in the southeast part of Livingston County, in the northwest corner of the town of Springwater. NY 15 leads northwest to
Conesus Hamlet and southeast to the
hamlet of Springwater. According to the
U.S. Census Bureau, the Webster Crossing CDP has an area of , all land. The community is in the valley of South McMillan Creek near its headwaters. The creek flows northwest past Conesus hamlet into
Conesus Lake, the westernmost of New York's
Finger Lakes and part of the
Genesee River watershed. ==Demographics==