County | State |
| Arthur | NE |
| Buffalo | NE |
| Chase | NE |
| Cheyenne | KS |
| Custer | NE |
| Dawson | NE |
| Decatur | KS |
| Dundy | NE |
| Ellis | KS |
| Franklin | NE |
| Frontier | NE |
| Furnas | NE |
| Gosper | NE |
| Gove | KS |
| Graham | KS |
| Harlan | NE |
| Hayes | NE |
| Hitchcock | NE |
| Kearney | NE |
| Keith | NE |
| Lincoln | NE |
| Logan | CO |
| Logan | KS |
| Logan | NE |
| McPherson | NE |
| Norton | KS |
| Phelps | NE |
| Phillips | CO |
| Phillips | KS |
| Rawlins | KS |
| Red Willow | NE |
| Sedgwick | CO |
| Sheridan | KS |
| Sherman | KS |
| Thomas | KS |
| Washington | CO |
| Yuma | CO |