Marion County, county in Illinois, United States. As of 2020 county had an estimated population of 37,045 inhabitants. The county was created 201 years ago in 1823. Its county seat is Salem.
There are 2 city/town in Marion County, IL. The largest city of Marion County is Salem with a population of 6,952. Other cities include and Sandoval population 1,205
List of cities, towns, neighborhoods & other populated places in Marion County.
City Name | Title | Population |
---|---|---|
Salem | City in Illinois | 6,952 |
Sandoval | Village in Marion County, Illinois, United States | 1,205 |