page_title: DeKalb County, Tennessee
section_title: Geography
hierarchical_section_title: DeKalb County, Tennessee / Geography
caption_attribution_description: English: Pollen washing up on the shores of Center Hill Lake at Edgar Evins State Park in the U.S. state of Tennessee.
context_page_description: DeKalb County is a county located in the U.S. state of Tennessee. As of the 2010 census, the population was 18,723. Its county seat is Smithville. The county was created by the General Assembly of Tennessee on December 2, 1837 and was named for Revolutionary War hero Major General Johann de Kalb.
context_section_description: According to the U.S. Census Bureau, the county has a total area of 329 square miles (850 km²), of which 304 square miles (790 km²) is land and 25 square miles (65 km²) (7.5%) is water.
caption: Center Hill Lake at Edgar Evins State Park
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