The value of all farms, ranches, and rural real estate for sale in Okanogan County recently was around $90 million, representing a combined 10,623 acres of land for sale in Okanogan County. Okanogan County ranks 12th based on the combined acreage of land for sale among all the counties in the Evergreen State. There were two properties listed as sold in Okanogan County through the Land Network Comparable Sales Program. This represented a total value of $3,800,000. Oroville featured the most land for sale. Okanogan County has a large agricultural economy, with 1,449 farms recorded in the county during the latest U.S. Census. Farming activities in Okanogan County generate annual revenues of $13 million, most of which is from crops. Okanogan County is the largest county in Washington (5,312 square miles). It's located in the Cascade Range Washington region of the state.