| | Holt County | MO | 29087 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=HoltCounty+MO |
| | Howard County | MO | 29089 | | Columbia, MO 17860 | Columbia-Jefferson
City-Moberly, MO 190 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=HowardCounty+MO |
| | Howell County | MO | 29091 | | West Plains, MO 48460 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=HowellCounty+MO |
| | Iron County | MO | 29093 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=IronCounty+MO |
| | Johnson County | MO | 29101 | | Warrensburg, MO 47660 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=JohnsonCounty+MO |
| | Knox County | MO | 29103 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=KnoxCounty+MO |
| | Laclede County | MO | 29105 | | Lebanon, MO 30060 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=LacledeCounty+MO |
| | Lawrence County | MO | 29109 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LawrenceCounty+MO |
| | Lewis County | MO | 29111 | | Quincy, IL-MO 39500 | Quincy-Hannibal, IL-MO 448 | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=LewisCounty+MO |
| | Linn County | MO | 29115 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LinnCounty+MO |