| Business | Phone |
| Village Garage 321 2nd Ave W, Milan 61264 | (309) 787-8532 |
| Village Garage 613 1st Ave W, Milan 61264 | (309) 787-8532 |
| Blackhawk Twp Supervisor 230 4th St W, Milan 61264 | (309) 787-3111 |
| Oak Grove Municipal Building 500 Woodland Rd, Milan 61264 | (309) 787-1056 |
| Oak Grove Village Treasurer 500 Woodland Rd, Milan 61264 | (309) 787-0919 |
| Mount Camden Lodge 321 2nd Ave W, Milan 61264 | (309) 787-8533 |
| Milan Sewage Treatment Plant 1200 2nd Ave W, Milan 61264 | (309) 787-8530 |
| Milan Village Administrator 321 2nd Ave W, Milan 61264 | (309) 787-8507 |
| Milan Village Clerk 321 2nd Ave W, Milan 61264 | (309) 787-8500 |
| Milan Village Inspectors 321 2nd Ave W, Milan 61264 | (309) 787-8527 |