Alexander is an unincorporated community and census-designated place (CDP) in Morgan County, Illinois, United States.

Alexander is 10 miles (16 km) east of Jacksonville, the county seat, and has a post office with ZIP code 62601.

[6] The community was made a CDP prior to the 2020 census.

Alexander first appeared as a census designated place in the 2020 U.S.

This Morgan County, Illinois location article is a stub.