Pell City is a city in St. Clair County, Alabama, United States. The city is the county seat of St. Clair County along with Ashville. At the 2000 census the population was 9,565. At the 2010 census, the city-limit population jumped to 12,695.
It was home to Avondale Mills and its legacy in the Avondale Mill Historic District.
Pell City was founded in 1890 by railroad investors and named after George Pell of the Pell City Iron and Land Company, one of its financial backers. The city was incorporated on May 6, 1891, but nearly failed during the Panic of 1893.
Pell City was revived in 1902 when Sumter Cogswell built the Pell City Manufacturing Company, which subsequently became Avondale Mills, a major landmark of the town until Thunder Enterprises, a Tennessee company, bought the building and began dismantling the factory in 2008. On February 14, 2008 a fire started at the mill. The fire was so large it could be seen from the Chula Vista/ Springville exit on Interstate 20 (I20).