Founded in 1829, Macoupin County is one of 102 counties in the state of Illinois. Historically, Macoupin County was formed from Greene County. The city of Carlinville is the county seat. With FIPS code of 117, Macoupin County has a population of 44,406 and area of 862 square miles (2,233 km2).
List of all cities in Macoupin County, IL alphabetically
| City/Town | Postal Code | Area Code |
| Barr, IL | 62674 | 217 |
| Benld, IL | 62009 | 217 |
| Brighton, IL | 62012 | 618/730 |
| Bunker Hill, IL | 62014 | 618/730 |
| Carlinville, IL | 62626 | 217 |
| Chesterfield, IL | 62630 | 618/730 |
| Comer, IL | 62626 | 217 |
| Dorchester, IL | 62033 | 217 |
| Eagarville, IL | 62023 | 217 |
| East Gillespie, IL | 62033 | 217 |
| Enos, IL | 62626 | 217 |
| Gillespie, IL | 62033 | 217 |
| Girard, IL | 62640 | 217 |
| Hagaman, IL | 62630 | 618/730 |
| Hettick, IL | 62649 | 618/730 |
| Lake Keho, IL | 62069 | 217 |
| McVey, IL | 62640 | 217 |
| Modesto, IL | 62667 | 217 |
| Mount Clare, IL | 62033 | 217 |
| Mount Olive, IL | 62069 | 217 |
| Nilwood, IL | 62672 | 217 |
| Palmyra, IL | 62674 | 217 |
| Piasa, IL | 62079 | 618/730 |
| Plainview, IL | 62685 | 618/730 |
| Royal Lakes, IL | 62685 | 618/730 |
| Sawyerville, IL | 62085 | 217 |
| Scottville, IL | 62683 | 217 |
| Shipman, IL | 62685 | 618/730 |
| Standard City, IL | 62640 | 217 |
| Staunton, IL | 62088 | 618/730 |
| Virden, IL | 62690 | 217 |
| White City, IL | 62069 | 217 |
| Williamson, IL | 62088 | 618/730 |
| Wilsonville, IL | 62093 | 217 |
| Womac, IL | 62626 | 217 |
| Woodburn, IL | 62014 | 618/730 |