Lincoln is a city in Talladega County, Alabama, United States. It was incorporated in 1911. At the 2020 census, the population was 6,845. …Lincoln is a city in Talladega County, Alabama, United States. It was incorporated in 1911. At the 2020 census, the population was 6,845. It was named for Major General Benjamin Lincoln, who served in the American army during the Revolutionary War.