Windsor is a town in Aiken County, South Carolina, United States.

[6] According to the United States Census Bureau, the town has a total area of 0.66 square miles (1.7 km2), all land.

There were 63 housing units at an average density of 62.8 per square mile (24.2/km2).

28.8% of all households were made up of individuals, and 11.5% had someone living alone who was 65 years of age or older.

There were 9.8% of families and 14.3% of the population living below the poverty line, including 20.5% of under eighteens and none of those over 64.