| Place Name | Anna |
| Place Type | City |
| ZIP Code(s) | 62906 |
| County | Union County |
| Area Code(s) | 618 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 4,470 |
| Population Growth Rate (2010-19) | -3.13% |
| Majority Ethnicity | White 94.36% |
| US Congressional District(s) | Illinois 12th |
| State House Districts | 115,118 |
| State Senate Districts | 58,59 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 94.36% |
| African American | 3.66% |
| Hispanic | 0% |
| Asian | 0.66% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 1.32% |