| Adamson, Melissa H. | Public Health Administrator | Health Department | (815) 334-4510 | health@mchenrycountyil.gov |
| Annarella, Thomas | Nursing Home Administrator | Valley Hi Nursing Home | (815) 338-0312 | valleyhi@mchenrycountyil.gov |
| Austin, Peter | County Administrator | County Administration | (815) 334-4226 | pbaustin@mchenrycountyil.gov |
| Benitez, Alejandro | Chief Assessment Officer | Assessments | (815) 334-4290 | assessments@mchenrycountyil.gov |
| Buehler, Michael | County Board Chairman | County Board | (815) 334-4224 | mjbuehler@mchenrycountyil.gov |
| Burman, Courtney | Jury Assembly Coordinator | Jury Commission | (815) 334-4390 | |
| Burroughs, Tom | Director of Facilities | Facilities Management | (815) 334-4155 | gtburroughs@mchenrycountyil.gov |
| Christensen, David | EMA Director | Emergency Management | (815) 338-6400 | ema@mchenrycountyil.gov |
| Cook, Mark G. | McHenry County Public Defender | Public Defender | (815) 334-4170 | |
| Gattuso, Nicole | Director of GIS | Geographic Information System | (815) 334-4496 | gis@mchenrycountyil.gov |
| Hartman, Scott | Deputy County Administrator | County Administration | (815) 334-4924 | sehartman@mchenrycountyil.gov |
| Hartmann, Diana | McHenry County Regional Superintendent of Schools | ROE | (815) 334-4475 | DKHartmann@mchenrycountyil.gov |
| Iwanicki, Michael | Superintendent Veteran's Commission | Veterans Assistance Commission | (815) 334-4229 | veterans@mchenrycountyil.gov |
| Keefe, Katherine M. | McHenry County Circuit Clerk | Circuit Clerk | | circuitclerk@mchenrycountyil.gov |
| Kenneally, Patrick D. | McHenry County State's Attorney | State's Attorney Office | (815) 334-4159 | statesattorney@mchenrycountyil.gov |
| Korpalski, Jr., P.E., Joseph R. | Director of Transportation/County Engineer | Division of Transportation | (815) 334-4964 | mcdot@mchenrycountyil.gov |
| Krause, Seth | Probation and Court Services Director | Court Services/ Probation | (815) 334-4400 | sakrause@mchenrycountyil.gov |
| Kurtz, Donna | McHenry County Treasurer | Treasurer | (815) 334-4260 | dmkurtz@mchenrycountyil.gov |
| Letendre, Adam M. | Director of Procurement and Special Services | Procurement and Special Services | (815) 334-4818 | purchasing@mchenrycountyil.gov |
| Poynter, Jeffery | Director of Workforce Network | Workforce Network Board | (815) 334-2778 | jjpoynter@mchenrycountyil.gov |
