| Business | Phone |
| Alaiedon Township Hall 2021 Holt Rd, Mason 48854 | (517) 676-9277 |
| Vevay Township Hall & Offices 780 Eden Rd, Mason 48854 | (517) 676-9523 |
| Aurelius Township Hall 1939 S Aurelius Rd, Mason 48854 | (517) 628-2093 |
| Mason City Office 111 N Rogers St, Mason 48854 | (517) 676-3614 |
| Mason Waste Water Plant 345 N Jefferson St, Mason 48854 | (517) 676-1166 |