Chatsworth is a city in Murray County, Georgia, United States. It is part of the Dalton, Georgia Metropolitan Statistical Area. The population was 3,531 at the 2000 census and 4,299 at the 2010 census. The city is the county seat of Murray County. According to a popular legend, the town received its name after a road sign with the word "Chatsworth" fell off a passing freight train nearby.