| Place Name | Algonquin Township |
| Place Type | Township |
| County | Mchenry County |
| Area Code(s) | 224,847,815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 87,921 |
| Majority Ethnicity | White 82.77% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 6th |
| State House Districts | 52,66 |
| State Senate Districts | 26,33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.77% |
| African American | 1.43% |
| Hispanic | 0.29% |
| Asian | 3.11% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 12.4% |