Madison County is a county located in the western part of the U.S. state of Tennessee. As of the 2020 census, the population was 98,823. Its county seat is Jackson. Madison County is included in the Jackson metropolitan area.
History
Madison County was formed in 1821, and named for founding father and president, James Madison. The county was part of lands the United States purchased from the Chickasaw in 1818. After Congressional passage of the Indian Removal Act of 1830, most Chickasaw were forced out of the state and west to Indian Territory beyond the Mississippi River.
Pinson Mounds, one of the largest Woodland period (c. 1-500CE) mound complexes in the United States, is located in Madison County. It has the second-tallest earthwork mound in the United States.
Geography
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According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.3%) is water.
Airport
McKellar-Sipes Regional Airport, renamed Jackson Regional Airport in 2025, ("MKL") serves the county and the surrounding communities. Lake Graham, a large 500 acre reservoir primarily intended for recreation and wildlife habitat, is located in the county 5 miles east of Jackson.
Adjacent counties
- Gibson County (north)
- Carroll County (northeast)
- Henderson County (east)
- Chester County (southeast)
- Hardeman County (south)
- Haywood County (west)
- Crockett County (northwest)
State protected areas
- Pinson Mounds State Archaeological Park
- Middle Fork Bottoms State Park
- South Fork Waterfowl Refuge
- Lake Graham
Highways
- US-45
- US-412
- US-70
- I-40