Killington is a town in Rutland County, Vermont, United States. The population was 811 at the 2010 census. Killington Ski Resort and numerous vacation lodges are located here. The town was previously named Sherburne, but on March 2, 1999, the town voted to revert its original name, "Killington". This was approved by the Vermont General Assembly, effective July 1, 1999.