| Place Name | Poplar Grove Township |
| Place Type | Township |
| ZIP Code(s) | 61008 61011 61012 61065 |
| County | Boone County |
| Area Code(s) | 815,779 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 5,126 |
| Majority Ethnicity | White 82.83% |
| Metro/Micro Stats Area | Rockford, IL |
| US Congressional District(s) | Illinois 16th |
| State House Districts | 69 |
| State Senate Districts | 35 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 82.83% |
| African American | 8.54% |
| Hispanic | 0.39% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 8.23% |