Jackson County is one of the 36 counties of the state of Oregon. The county is named after Andrew Jackson, the seventh president of the United States. Jackson county has 11 incorporated cities and 34 unincorporated communities. The largest of this county is Medford which has been the county seat since 1927. Jackson County has a land area of 2000 square miles and it is surrounded by Josephine county, Douglas county, Klamath county, and California.