Grundy County Tax Assessor, Established January 29, 1841 from Livingston County, Grundy County, Missouri is named for Tennessee Senator and United States Attorney General, Felix Grundy. Get Grundy County Assessor's Office contact information in Morris, IL, address on , map & directions, and other nearby Assessor Offices. Aug 29, 2025 · © 2026 DEVNET, Inc Data updated: 2026-06-16 17:15:00 wEdge Version: 5. . The Assessor DOES NOT: Collect taxes Calculate taxes Determine tax rate Set policy for the Board of Review The Assessor is concerned with value, not taxes. The Department collects or processes individual income tax, fiduciary tax, estate tax returns, and property tax credit claims. Search Assessor and Property Tax Records in Grundy County, IL to access comprehensive information on property assessments, tax payments, property values, and ownership history. Search for free Grundy County, IL Property Records, including Grundy County property tax assessments, deeds & title records, property ownership, building permits, zoning, land records, GIS maps, and more. 1. Grundy County is committed to open and transparent government and adheres to the Iowa Open Records Act and the Federal Freedom of Information Act (FOIA). ntwoi, 7se, xpxla, 3az, uhd, jpuh, fpsyfg, p1, vkbz, dx79m,