Oregon County, county in Missouri, United States. As of 2020 county had an estimated population of 10,411 inhabitants. The county was created 178 years ago in 1845. Its county seat is "Alton".
There are 3 city/town in Oregon County, MO. The largest city of Oregon County is Thayer with a population of 2,103. Other cities include, Alton population 823 and Koshkonong population 199
Alton, city in Missouri
Koshkonong, city in Missouri, United States
Cities, Towns, Neighborhoods & Other Populated Places in Oregon County.
|Alton||City in Missouri||Oregon||823|
|Koshkonong||City in Missouri, United States||Oregon||199|