| Business | Phone |
| Western Waukesha Municipal Ct 174 E Wisconsin Ave, Oconomowoc 53066 | (262) 569-0920 |
| Lac La Belle Village Clerk 117 W South St, Oconomowoc 53066 | (262) 569-6190 |
| Highway Shop 2911 N Dousman Rd, Oconomowoc 53066 | (262) 567-2422 |
| Homes For Independent Living 1746 Executive Dr, Oconomowoc 53066 | (262) 567-5520 |
| Oconomowoc Ambulance 212 S Concord Rd, Oconomowoc 53066 | (262) 569-3223 |
| Oconomowoc Building Inspection 174 E Wisconsin Ave, Oconomowoc 53066 | (262) 569-2195 |
| Oconomowoc City Adm 174 E Wisconsin Ave, Oconomowoc 53066 | (262) 569-2183 |
| Oconomowoc City Engineer 174 E Wisconsin Ave, Oconomowoc 53066 | (262) 569-2188 |
| Oconomowoc Director-Public Wrk 174 E Wisconsin Ave, Oconomowoc 53066 | (262) 569-2184 |
| Oconomowoc Wastewater Facility 900 S Worthington St, Oconomowoc 53066 | (262) 569-2192 |
| Oconomowock Town Bldg Inspctr W359n6812 Brown St, Oconomowoc 53066 | (920) 474-4449 |
| Municipal Garage 630 S Worthington St, Oconomowoc 53066 | (262) 569-2191 |
| Lac La Belle Vlg Office Po Box 443, Oconomowoc 53066 | (262) 560-0730 |