| Business | Phone |
| Choice Program 12110 Fillmore St, West Olive 49460 | (616) 786-4120 |
| Ottawa Cnty Equalization Dept 12110 Fillmore St, West Olive 49460 | (616) 738-4826 |
| Ottawa Cnty Equalization Dept 12220 Fillmore St, West Olive 49460 | (616) 738-4826 |
| Ottawa County Accounting 12220 Fillmore St, West Olive 49460 | (616) 738-4847 |
| Ottawa County Admin Svc 12220 Fillmore St, West Olive 49460 | (616) 738-4853 |
| Ottawa County Administrator 12220 Fillmore St 310, West Olive 49460 | (616) 738-4898 |
| Ottawa County Facilities Mntnc 12220 Fillmore St, West Olive 49460 | (616) 738-4873 |
| Ottawa County Geographic Info 12220 Fillmore St, West Olive 49460 | (616) 738-4600 |
| Ottawa County Human Resources 12220 Fillmore St, West Olive 49460 | (616) 738-4800 |
| Ottawa County Juvenile Svc 12120 Fillmore St, West Olive 49460 | (616) 786-4100 |
| Ottawa County Juvenile Svc Ctr 12110 Fillmore St, West Olive 49460 | (616) 786-4130 |
| Ottawa County Juvenile Trtmnt 12120 Fillmore St, West Olive 49460 | (616) 786-4120 |
| Ottawa County Management Info 12220 Fillmore St, West Olive 49460 | (616) 738-4833 |
| Ottawa County Planning & Grant 12220 Fillmore St, West Olive 49460 | (616) 738-4852 |
| Ottawa County Property Dscrptn 12220 Fillmore St, West Olive 49460 | (616) 738-4818 |
| Ottawa County Road Commission 8191 2nd Ave, West Olive 49460 | (616) 786-9053 |
| Ottawa County Treasurer's 12220 Fillmore St, West Olive 49460 | (616) 738-4895 |