| | Pulaski County | MO | 29169 | | Fort Leonard Wood, MO 22780 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=PulaskiCounty+MO |
| | Polk County | MO | 29167 | | Springfield, MO 44180 | | Outlying | metro county (urban) | nonspecialized | https://maps.google.com/?q=PolkCounty+Missouri |
| | Platte County | MO | 29165 | | Kansas City, MO-KS 28140 | Kansas City-Overland
Park-Kansas City, MO-KS 312 | Central | metro county (urban) | nonspecialized | https://maps.google.com/?q=PlatteCounty+MO |
| | Pike County | MO | 29163 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PikeCounty+MO |
| | Phelps County | MO | 29161 | | Rolla, MO 40620 | | Central | nonmetro county (rural) | federal/state
government-dependent | https://maps.google.com/?q=PhelpsCounty+MO |
| | Pettis County | MO | 29159 | | Sedalia, MO 42740 | | Central | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=PettisCounty+MO |
| | Perry County | MO | 29157 | | | | | nonmetro county (rural) | manufacturing-dependent | https://maps.google.com/?q=PerryCounty+MO |
| | Pemiscot County | MO | 29155 | | | | | nonmetro county (rural) | nonspecialized | https://maps.google.com/?q=PemiscotCounty+MO |
| | Ozark County | MO | 29153 | | | | | nonmetro county (rural) | recreation | https://maps.google.com/?q=OzarkCounty+MO |
| | Osage County | MO | 29151 | | Jefferson City, MO 27620 | Columbia-Jefferson
City-Moberly, MO 190 | Outlying | metro county (urban) | manufacturing-dependent | https://maps.google.com/?q=OsageCounty+MO |