| Place Name | Niantic Township |
| Place Type | Township |
| ZIP Code(s) | 62539 62547 62551 |
| County | Macon County |
| Area Code(s) | 217 |
| Timezone | Central Daylight Time (CDT) |
| Population (2021) | 854 |
| Majority Ethnicity | White 85.4% |
| Metro/Micro Stats Area | Decatur, IL |
| US Congressional District(s) | Illinois 13th |
| State House Districts | 96,101 |
| State Senate Districts | 48,51 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 85.4% |
| African American | 0% |
| Hispanic | 0.37% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 14.23% |