Illinois landownership plat books and maps are a valuable resource for Illinois residents. For over 50 years, Mapping Solutions has been publishing plat books and maps using the most current data available. Every Illinois county plat book published by Mapping Solutions is custom built for the county sponsor. Our Illinois plat maps contain property boundaries for all rural parcels including landownership details as well as other local features. Everyone from property owners to hunters, foresters, timber industry, utility companies, recreation enthusiasts and many other industries enjoy the valuable, easy to use information in Illinois plat books and maps from Mapping Solutions.