County Wiki | https://en.wikipedia.org/wiki/Oregon_County,_Missouri
Populated Areas Wiki | https://en.wikipedia.org/wiki/Category:Populated_places_in_Oregon_County,_Missouri
| Institution | City | Type |
|---|---|---|
| Oregon County Library District Admin | Alton | c |
| Alton Branch Library | Alton | c |
| Koshkonong Branch Library | Koshkonong | c |
| Myrtle Branch Library | Myrtle | c |
| Thayer Branch Library | Thayer | c |
| Thomasville Branch Library | Thomasville | c |