| | Tillman County | OK | 40141 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=TillmanCounty+OK |
| | Tulsa County | OK | 40143 | | Tulsa, OK 46140 | Tulsa-Bartlesville-Muskogee,
OK 538 | Central | metro county (urban) | mining-dependent | https://maps.google.com/?q=TulsaCounty+OK |
| | Wagoner County | OK | 40145 | | Tulsa, OK 46140 | Tulsa-Bartlesville-Muskogee,
OK 538 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=WagonerCounty+OK |
| | Washington County | OK | 40147 | | Bartlesville, OK 12780 | Tulsa-Bartlesville-Muskogee,
OK 538 | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=WashingtonCounty+OK |
| | Washita County | OK | 40149 | | Weatherford, OK 48220 | Weatherford-Elk City, OK 555 | Outlying | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=WashitaCounty+OK |
| | Woods County | OK | 40151 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=WoodsCounty+OK |
| | Woodward County | OK | 40153 | | Woodward, OK 49260 | | Central | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=WoodwardCounty+OK |