The total value of farms, hunting land and other rural land and acreage for sale in Allegan County recently on Land.com was almost $262 million. This represents 100,000 acres of farms, rural land, hunting land and other land for sale in Allegan County. Based on the combined acreage of land and rural property for sale here, Allegan County has the most land for sale of all counties in Michigan. There were two properties listed as sold in Allegan County through the Land Network Comparable Sales Program. This represented a total value of $850,000. Of all locations in Allegan County with farms, hunting land and other rural land and acreage for sale, Allegan featured the most land for sale. Manufacturing and related services are the largest economic sectors in Allegan County. Allegan County is the 14th largest county (1,833 square miles) in Michigan. It's located in the Southwest Michigan region of Michigan.