Connecticut Secretary of the State Stephanie Thomas presented Stamford with the Democracy Cup Wednesday at the Government Center.
The award is given to four municipalities that saw the highest voter turnout in the most recent even-numbered election year.
The honor is divided into four categories based on town size: small, mid-sized, large and city.
Authorities say Stamford won the award for its excellence in getting out the vote.
Deep River, Mansfield and Glastonbury are also being honored.