Founded in 1838, Newton County is one of 114 counties in the state of Missouri. Historically, Newton County was formed from Barry County. The city of Neosho is the county seat. With FIPS code of 145, Newton County has a population of 59,386 and area of 626 square miles (1,621 km2).
List of all cities in Newton County, MO alphabetically
| City/Town | Postal Code | Area Code |
| Aroma, MO | 64844 | 417 |
| Boulder City, MO | 64844 | 417 |
| Diamond, MO | 64840 | 417 |
| Fairview, MO | 64842 | 417 |
| Granby, MO | 64844 | 417 |
| Hart, MO | 64865 | 417 |
| Hornet, MO | 64865 | 417 |
| Neosho, MO | 64850 | 417 |
| 64853 | 417 | |
| Newtonia, MO | 64853 | 417 |
| Racine, MO | 64858 | 417 |
| Saginaw, MO | 64864 | 417 |
| Seneca, MO | 64865 | 417 |
| Stark City, MO | 64866 | 417 |
| Stella, MO | 64867 | 417 |