Alexander is a village in Genesee County, New York, United States.

[4] The village was founded by Alexander Rea on land he purchased in 1802 and was incorporated in 1834.

According to the United States Census Bureau, the village has a total area of 0.42 square miles (1.1 km2), all land.

The racial makeup of the village was 98.34% White, 0.21% Native American, 0.83% Asian, and 0.62% from two or more races.

23.3% of all households were made up of individuals, and 10.5% had someone living alone who was 65 years of age or older.

None of the families and 0.8% of the population were living below the poverty line, including no under eighteens and none of those over 64.