| Place Name | McHenry Township |
| Place Type | Township |
| County | Mchenry County |
| Area Code(s) | 815,779,224,847 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 46,562 |
| Majority Ethnicity | White 86.5% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 14th |
| State House Districts | 63,64 |
| State Senate Districts | 32 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 86.5% |
| African American | 0.73% |
| Hispanic | 0.11% |
| Asian | 1% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 11.66% |