Union, Illinois Parcel Map & Owner Info

State: Illinois

This map covers Union County, Illinois and includes 12,839 parcels updated 2026-04-10. The median parcel size is 1.8785 acres.

Search by address or zoom in to explore the parcel map, property lines, and land ownership details. See parcel boundaries, zoning information, photos, tax data, sales history, and property owner contact information.