| Place Name | Neponset |
| Place Type | Village |
| ZIP Code(s) | 61345 |
| County | Bureau County |
| Area Code(s) | 309 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 480 |
| Population Growth Rate (2010-19) | -9.73% |
| Majority Ethnicity | White 93.67% |
| Metro/Micro Stats Area | Ottawa, IL |
| US Congressional District(s) | Illinois 16th |
| State House Districts | 73 |
| State Senate Districts | 37 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.67% |
| African American | 0.76% |
| Hispanic | 0.25% |
| Asian | 0.76% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 4.56% |