
Alexander
- County:
- Morgan County
- County Seat:
- No
- Area (mi²):
- 0.984
- State:
- Illinois
Alexander is a CDP located in Morgan County, Illinois. Alexander has a 2025 population of 340. Alexander is currently growing at a rate of 7.26% annually and its population has increased by 113.84% since the most recent census, which recorded a population of 159 in 2020.
The average household income in Alexander is $100,362 with a poverty rate of 5.81%. The median age in Alexander is 37.4 years: 39.5 years for males, and 31.2 years for females.