Talladega is the county seat of Talladega County, Alabama, United States. It was incorporated in 1835. At the 2020 census, the population was …Talladega is the county seat of Talladega County, Alabama, United States. It was incorporated in 1835. At the 2020 census, the population was 15,861. Talladega is approximately 50 miles east of one of the state's largest cities, Birmingham.