| | Scott County | MO | 29201 | | Sikeston, MO 43460 | Cape Girardeau-Sikeston,
MO-IL 164 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=ScottCounty+MO |
| | Scotland County | MO | 29199 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=ScotlandCounty+MO |
| | Schuyler County | MO | 29197 | | Kirksville, MO 28860 | | Outlying | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=SchuylerCounty+MO |
| | Saline County | MO | 29195 | | Marshall, MO 32180 | | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=SalineCounty+MO |
| | Ripley County | MO | 29181 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=RipleyCounty+MO |
| | Reynolds County | MO | 29179 | | | | | nonmetro county (rural) | mining-dependent | https://maps.google.com/?q=ReynoldsCounty+MO |
| | Ray County | MO | 29177 | | Kansas City, MO-KS 28140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=RayCounty+MO |
| | Randolph County | MO | 29175 | | Moberly, MO 33620 | Columbia-Jefferson
City-Moberly, MO 190 | Central | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=RandolphCounty+MO |
| | Ralls County | MO | 29173 | | Hannibal, MO 25300 | Quincy-Hannibal, IL-MO 448 | Outlying | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=RallsCounty+MO |
| | Putnam County | MO | 29171 | | | | | nonmetro county (rural) | farm-dependent | https://maps.google.com/?q=PutnamCounty+MO |