Post Offices List in Barton County, Missouri:
| Golden City Post Office | 519 Main St, Golden City, MO 64748 |
| Lamar Post Office | 131 W 11th St, Lamar, MO 64759 |
| Liberal Post Office | 128 S Main St, Liberal, MO 64762 |
| Mindenmines Post Office | 604 Main St, Mindenmines, MO 64769 |