| Locality | Post Code |
|---|---|
| Aroma, Newton | 64844 |
| Boulder City, Newton | 64844 |
| Diamond, Newton | 64840 |
| Fairview, Newton | 64842 |
| Goodman, Newton | 64843 |
| Granby, Newton | 64844 |
| Hart, Newton | 64865 |
| Hornet, Newton | 64865 |
| Loma Linda, Newton | 64804 |
| Neosho, Newton | 64850 |
| Newtonia, Newton | 64853 |
| Racine, Newton | 64858 |
| Saginaw, Newton | 64864 |
| Sarcoxie, Newton | 64862 |
| Seneca, Newton | 64865 |
| Stark City, Newton | 64866 |
| Stella, Newton | 64867 |
| Wentworth, Newton | 64873 |