
Decatur
- County:
- Morgan County
- County Seat:
- Yes
- Area (mi²):
- 54.594
- State:
- Alabama
Decatur is a city located in Morgan County, Alabama. Decatur has a 2025 population of 58,703. It is also the county seat of .Decatur is currently growing at a rate of 0.33% annually and its population has increased by 1.65% since the most recent census, which recorded a population of 57,748 in 2020.
The average household income in Decatur is $80,740 with a poverty rate of 12.84%. The median age in Decatur is 40.4 years: 38.7 years for males, and 41.6 years for females.