Oregon County, located in South Central Missouri, was officially organized on 14 February 1845. Oregon County is bordered on the south by Arkansas (Randolph, Sharp and Fulton Counties), on the north by Shannon County, on the east by Ripley County, and on the west by Howell County. Oregon County was named for the Oregon Territory in the northwestern United States. Alton is the county seat.

In 2000 the county population was 10,344 in a land area of 791 square miles.

Search all of the marriages from Marriage Book A (1845 - 1879).

New! Civil War Pension Index.