| | FIPS | County | State | Coordinating Agency Name |
| 26 | 05007 | Benton | Arkansas | Northwest AR Regional Planning Commission |
| 27 | 05033 | Crawford | Arkansas | Western Ark Plan & Dev District |
| 28 | 05035 | Crittenden | Arkansas | West Memphis MPO |
| 29 | 05045 | Faulkner | Arkansas | Metroplan |
| 30 | 05069 | Jefferson | Arkansas | Southeast AR Regional Planning Commission |
| 31 | 05085 | Lonoke | Arkansas | Metroplan |
| 32 | 05091 | Miller | Arkansas | Texarkana |
| 33 | 05119 | Pulaski | Arkansas | Metroplan |
| 34 | 05125 | Saline | Arkansas | Metroplan |
| 35 | 05131 | Sebastian | Arkansas | Western Ark Plan & Dev District |
| 36 | 05143 | Washington | Arkansas | Northwest AR Regional Planning Commission |