There was a combined approximately $341 million of farmsand rural real estate for sale in Michigan's Ottawa County recently on Land.com. The total acreage of all Ottawa County farms and rural real estate for sale was around 2,000 acres. Ottawa County ranks third in the Wolverine State for the total acreage of land currently advertised for sale. Of all farms, hunting land and other rural land and acreage for sale in Ottawa County, Holland featured the most land for sale. Manufacturing and related services are the largest economic sectors in Ottawa County. Ottawa County is Michigan's 17th biggest county (1,631 square miles). It's located in the West Central Michigan region of the state.