| Place Name | Newtonia |
| Place Type | Town |
| ZIP Code(s) | 64844 64866 |
| County | Newton County |
| Area Code(s) | 417 |
| Timezone | Central Daylight Time (CDT) |
| Population (2022) | 175 |
| Population Growth Rate (2010-19) | 2.51% |
| Majority Ethnicity | White 93.85% |
| Metro/Micro Stats Area | Joplin, MO |
| US Congressional District(s) | Missouri 7th |
| State House Districts | 159 |
| State Senate Districts | 32 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 93.85% |
| African American | 0% |
| Hispanic | 2.23% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.91% |