| Ziebart, Suzanne | Director of Human Resources | Human Resources | (815) 334-4220 | humanresources@mchenrycountyil.gov |
| Wisz, Kerri | Chief Financial Officer | Finance | (815) 334-4207 | KMWisz@mchenrycountyil.gov |
| Wisz, Kerri | Chief Financial Officer | Procurement Division | (815) 334-4818 | purchasing@mchenrycountyil.gov |
| Wallis, James "Dan" | Trial Court Administrator | Court Administration | (815) 334-4385 | jdwallis@22ndcircuit.illinoiscourts.gov |
| Wallen, Adam | Director of Planning & Development | Planning & Development | (815) 334-4568 | apwallen@mchenrycountyil.gov |
| Tirio, Joseph J. | McHenry County Clerk | County Clerk | (815) 334-4242 | countyclerk@mchenrycountyil.gov |
| Tirio, Joe | McHenry County Recorder | County Recorder | (815) 334-4110 | recorders@mchenrycountyil.gov |
| Teresi, Shannon | County Auditor | Auditor | (815) 334-4208 | auditor@mchenrycountyil.gov |
| Tadelman, Robb | McHenry County Sheriff | Sheriff | (815) 338-2144 | sheriff@mchenrycountyil.gov |
| Sullivan, Thomas | Director of Information Technology | Information Technology | (815) 334-4138 | infotech@mchenrycountyil.gov |
| Schulte, Theresa K. | McHenry County ETSB 911 Director | E911 | (815) 337-7911 | mcetsb@mchenrycountyil.gov |
| Schueller, Alicia | Deputy County Administrator | County Administration | (815) 334-0309 | AASchueller@mchenrycountyil.gov |
| Rohn, Jake | Director of Workforce Network Board | Workforce Network | (815) 334-2785 | mcwnboard@mchenrycountyil.gov |
| Rein, Michael | McHenry County Coroner | Coroner | (815) 338-2144 | mrrein@mchenrycountyil.gov |
| Poynter, Jeffery | Director of Workforce Network | Workforce Network Board | (815) 334-2778 | workforcesolutions@mchenrycountyil.gov |
| Kurtz, Donna | McHenry County Treasurer | Treasurer | (815) 334-4260 | dmkurtz@mchenrycountyil.gov |
| Krause, Seth | Probation and Court Services Director | Court Services/ Probation | (815) 334-4400 | CourtServicesManagementGroup@22ndcircuitil.gov |
| Korpalski, Jr., P.E., Joseph R. | Director of Transportation/County Engineer | Division of Transportation | (815) 334-4960 | mcdot@mchenrycountyil.gov |
| Keefe, Katherine M. | McHenry County Circuit Clerk | Circuit Clerk | | circuitclerk@mchenrycountyil.gov |
| Johnson, Nathaniel | Superintendent Veteran's Commission | Veterans Assistance Commission | (815) 334-4229 | veterans@mchenrycountyil.gov |
