Madison County
Also known as Madison County, Indiana, Madison County, IN
county in Indiana, United States
Key facts
- Country
- United States
- State
- Indiana
- Founded
- January 4, 1823 (authorized)
- Named after
- James Madison
- Seat
- Anderson
- Largest city
- Anderson
- Total
- 452.90 sq mi (1,173.0 km )
- Land
- 451.92 sq mi (1,170.5 km )
- Water
- 0.99 sq mi (2.6 km ) 0.22%
- Estimate 2025
- 135,088
- Density
- 287.95/sq mi (111.18/km )
- Time zone
- UTC−5 ( Eastern )
- Summer dst
Article
Madison County is a county in the U.S. state of Indiana. The 2020 census states the population is standing at 130,129. The county seat since 1836 has been Anderson, one of three incorporated cities within the county. Madison County is included in the Indianapolis-Carmel-Anderson, IN Metropolitan Statistical Area.
History