| Place Name | Annawan Township |
| Place Type | Township |
| ZIP Code(s) | 61234 61344 61361 61443 |
| County | Henry County |
| Area Code(s) | 309 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 927 |
| Majority Ethnicity | White 91.68% |
| Metro/Micro Stats Area | Davenport-Moline-Rock Island, IA-IL |
| US Congressional District(s) | Illinois 17th |
| State House Districts | 74 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 91.68% |
| African American | 1.49% |
| Hispanic | 0% |
| Asian | 1.17% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 5.66% |