| | 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 |
| | Linn County | MO | 29115 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LinnCounty+MO |
| | Livingston County | MO | 29117 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=LivingstonCounty+MO |
| | McDonald County | MO | 29119 | | | | | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=McDonaldCounty+MO |
| | Macon County | MO | 29121 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MaconCounty+MO |
| | Madison County | MO | 29123 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=MadisonCounty+MO |
| | Maries County | MO | 29125 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MariesCounty+MO |
| | Mercer County | MO | 29129 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=MercerCounty+MO |