Of 62 counties in the Empire State, Ontario County ranks 35th by size (662 square miles). Ontario County is in Western New York. There is nearly 1,000 acres of ranches for sale in Ontario County, New York, based on recent Land Network data. The combined market value of land for sale here is roughly $3 million. Browse all Ontario County ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg. The most common type of land for sale by combined acreage in Ontario County is house.