Colchester is a rural town in New London County, Connecticut, United States. The population was 14,551 at the 2000 census. In 2005 it was ranked 57th on the "100 Best Places to Live" in all of the United States, conducted by CNN. In 2010 Colchester became the first town in Connecticut, and the 36th in the country, to be certified with the National Wildlife Federation (NWF) as a Community Wildlife Habitat. Colchester is one of the fastest growing towns in Connecticut.