County | State |
| Adams | NE |
| Buffalo | NE |
| Clay | NE |
| Custer | NE |
| Dawson | NE |
| Decatur | KS |
| Ellis | KS |
| Fillmore | NE |
| Franklin | NE |
| Frontier | NE |
| Furnas | NE |
| Gosper | NE |
| Gove | KS |
| Graham | KS |
| Greeley | NE |
| Hall | NE |
| Hamilton | NE |
| Harlan | NE |
| Howard | NE |
| Jewell | KS |
| Kearney | NE |
| Logan | KS |
| Merrick | NE |
| Mitchell | KS |
| Nance | NE |
| Norton | KS |
| Nuckolls | NE |
| Osborne | KS |
| Phelps | NE |
| Phillips | KS |
| Polk | NE |
| Rawlins | KS |
| Republic | KS |
| Rooks | KS |
| Russell | KS |
| Sheridan | KS |
| Sherman | NE |
| Smith | KS |
| Thayer | NE |
| Thomas | KS |
| Trego | KS |
| Valley | NE |
| Webster | NE |
| York | NE |