County Wiki | https://en.wikipedia.org/wiki/Mississippi_County,_Missouri
Populated Areas Wiki | https://en.wikipedia.org/wiki/Category:Populated_places_in_Mississippi_County,_Missouri
| Institution | City | Type |
|---|---|---|
| Mississippi County Library District | Charleston | c |
| Charleston Branch Library | Charleston | c |
| Mitchell Memorial Branch Library | East Prairie | c |
| xx | b | c |
| xx | b | c |
| xx | b | c |
| xx | b | c |