Madison County | |
|---|---|
 Madison County Courthouse in Huntsville | |
 Location within the U.S. state of Arkansas | |
 Arkansas's location within the U.S. | |
| Coordinates: 36°01′38″N 93°41′45″W / 36.027222222222°N 93.695833333333°W | |
| Country |  United States |
| State |  Arkansas |
| Founded | September 30, 1836 |
| Named for | Madison County, Alabama |
| Seat | Huntsville |
| Largest city | Huntsville |
| Area | |
| • Total | 837 sq mi (2,170 km2) |
| • Land | 834 sq mi (2,160 km2) |
| • Water | 2.8 sq mi (7 km2) 0.3% |
| Population (2020) | |
| • Total | 16,521 |
| • Density | 20/sq mi (7.6/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Website | madisoncogov |
Madison County is a county of the U.S. state of Arkansas. As of the 2020 census, the population was 16,521. The county seat is Huntsville. The county was founded on September 30, 1836, and named for James Madison, 4th President of the United States (1809–1817).
Madison County is in the Northwest Arkansas region.
