 In 1829, the justices voted to move the county seat from the site it occupied near the present community of Sandhill, to a new site about to the southwest.The original intention was to call the new county seat "Troupville", in honor of former governor George Troup, but Troup was not popular with the state government of the time, so the Georgia General Assembly incorporated the town as Carrollton, in December 1829.The name was in honor of Charles Carroll of Carrollton, the last living signer of the Declaration of Independence.