The City of Sumter is 44 miles east of the state capital, Columbia. The deep-water ports of Charleston are located just 100 miles south, while the booming Greenville area is 145 miles northwest.
The City covers 26 square miles.
The average temperature in January is 45.4 degrees and in July it's 81.2 degrees. Average precipitation is 49.1 inches with a growing season of 225 days.