| Place Name | Algonquin |
| Place Type | Village |
| ZIP Code(s) | 60102 |
| County | Mchenry County Kane County |
| Area Code(s) | 224,847 |
| Timezone | Central Standard Time (CST) |
| Population (2022) | 29,924 |
| Population Growth Rate (2010-19) | -1.15% |
| Majority Ethnicity | White 80.77% |
| Metro/Micro Stats Area | Chicago-Naperville-Elgin, IL-IN-WI |
| US Congressional District(s) | Illinois 6thIllinois 14th |
| State House Districts | 52,66 |
| State Senate Districts | 26,33 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 80.77% |
| African American | 2.55% |
| Hispanic | 0.33% |
| Asian | 6.56% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 9.8% |