Of 102 counties in the state, Peoria County ranks 32nd by size (630 square miles). Peoria County is in Western Illinois. There is about 1,000 acres of ranches for sale in Illinois's Peoria County based on recent Land Network data. The combined market value of land and rural real estate for sale here is around $2 million. Browse all Peoria 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 Peoria County is residential property.