| Name | Title | Term Expires | |
|---|---|---|---|
| Ben Dietz | Mayor | bdietz@wilmington-il.gov | May 2029 |
| Jeannine Smith | City Clerk | jsmith@wilmington-il.gov | — |
| Kevin Kirwin | 1st Ward Alderperson | kkirwin@wilmington-il.gov | May 2027 |
| Marty Orr | 1st Ward Alderperson | morr@wilmington-il.gov | May 2029 |
| Dennis Vice | 2nd Ward Alderperson | dvice@wilmington-il.gov | May 2027 |
| Ryan Knight | 2nd Ward Alderperson | rknight@wilmington-il.gov | May 2029 |
| Jonathan Mietzner | 3rd Ward Alderperson | jmietzner@wilmington-il.gov | May 2029 |
| Rachel Conforti | 3rd Ward Alderperson | rconforti@wilmington-il.gov | May 2027 |
| Thomas Smith | 4th Ward Alderperson | tsmith@wilmington-il.gov | May 2029 |
| Todd Holmes | 4th Ward Alderperson | tholmes@wilmington-il.gov | May 2027 |