Post Offices List in Harper County, Kansas:
| Anthony Post Office | 121 W Steadman St, Anthony, KS 67003 |
| Attica Post Office | 136 N Main St, Attica, KS 67009 |
| Bluff City Post Office | 621 Central Ave, Bluff City, KS 67018 |
| Danville Post Office | 104 Ryan Ave, Danville, KS 67036 |
| Harper Post Office | 901 Central St, Harper, KS 67058 |