| Business | Phone |
| Coolspring Township Trustee 4496 Wozniak Rd, Michigan City 46360 | (219) 872-2181 |
| Michigan City Community Rooms 415 E 4th St, Michigan City 46360 | (219) 872-4864 |
| Michigan City Engineer 100 E Michigan Blvd, Michigan City 46360 | (219) 873-1426 |
| Michigan City Human Rights 100 E Michigan Blvd, Michigan City 46360 | (219) 873-1429 |
| Michigan City Inspection Dept 100 E Michigan Blvd, Michigan City 46360 | (219) 873-1415 |
| Michigan City Personnel Dept 100 E Michigan Blvd, Michigan City 46360 | (219) 873-1427 |
| Michigan City Planning Dept 100 E Michigan Blvd, Michigan City 46360 | (219) 873-1419 |
| Michigan City Refuse Dept 1801 Kentucky St, Michigan City 46360 | (219) 873-1530 |
| Michigan Township Trustee 531 E Michigan Blvd, Michigan City 46360 | (219) 874-5201 |
| Municipal Coach 1801 Kentucky St, Michigan City 46360 | (219) 873-1502 |
| Pottawattamie Town Office 1016 N Roeske Trl, Michigan City 46360 | (219) 874-0383 |
| Pottawattamie Town Office 500 Marquette Trl, Michigan City 46360 | (219) 874-0383 |
| Town Of Pines Maintenance 1519 Delaware St, Michigan City 46360 | (219) 872-8523 |
| Trail Creek Marina 700 E Michigan Blvd, Michigan City 46360 | (219) 879-4300 |