| Burman, Courtney | Jury Assembly Coordinator | Jury Commission | (815) 334-4390 | |
| Cook, Mark G. | McHenry County Public Defender | Public Defender | (815) 334-4170 | |
| Wallen, Adam | Director of Planning & Development | Planning & Development | (815) 334-4568 | apwallen@mchenrycountyil.gov |
| Benitez, Alejandro | Chief Assessment Officer | Assessments | (815) 334-4290 | assessments@mchenrycountyil.gov |
| Teresi, Shannon | County Auditor | Auditor | (815) 334-4208 | auditor@mchenrycountyil.gov |
| Keefe, Katherine M. | McHenry County Circuit Clerk | Circuit Clerk | | circuitclerk@mchenrycountyil.gov |
| Tirio, Joseph J. | McHenry County Clerk | County Clerk | (815) 334-4242 | countyclerk@mchenrycountyil.gov |
| Krause, Seth | Probation and Court Services Director | Court Services/ Probation | (815) 334-4400 | CourtServicesManagementGroup@22ndcircuitil.gov |
| Hartmann, Diana | McHenry County Regional Superintendent of Schools | ROE | (815) 334-4475 | DKHartmann@mchenrycountyil.gov |
| Kurtz, Donna | McHenry County Treasurer | Treasurer | (815) 334-4260 | dmkurtz@mchenrycountyil.gov |
| Christensen, David | EMA Director | Emergency Management | (815) 338-6400 | ema@mchenrycountyil.gov |
| Gattuso, Nicole | Director of GIS | Geographic Information System | (815) 334-4496 | gis@mchenrycountyil.gov |
| Burroughs, Tom | Director of Facilities | Facilities Management | (815) 334-4155 | gtburroughs@mchenrycountyil.gov |
| Adamson, Melissa H. | Public Health Administrator | Health Department | (815) 334-4510 | health@mchenrycountyil.gov |
| Ziebart, Suzanne | Director of Human Resources | Human Resources | (815) 334-4220 | humanresources@mchenrycountyil.gov |
| Sullivan, Thomas | Director of Information Technology | Information Technology | (815) 334-4138 | infotech@mchenrycountyil.gov |
| Wallis, James "Dan" | Trial Court Administrator | Court Administration | (815) 334-4385 | jdwallis@22ndcircuit.illinoiscourts.gov |
| Tirio, Joe | McHenry County Recorder | County Recorder | (815) 334-4110 | JJTirio@mchenrycountyil.gov |
| Wisz, Kerri | Chief Financial Officer | Finance | (815) 334-4207 | KMWisz@mchenrycountyil.gov |
| Korpalski, Jr., P.E., Joseph R. | Director of Transportation/County Engineer | Division of Transportation | (815) 334-4960 | mcdot@mchenrycountyil.gov |
