Union County, IL Property Records
Property records in Union, Illinois document ownership, legal descriptions, parcel boundaries, assessed values, property tax history, transfers, deeds, mortgages, liens, and other recorded real estate information. These records are useful for confirming ownership, researching a property’s sales or tax history, preparing for a real estate transaction, resolving boundary or title questions, and estimating local tax obligations.
Because Union is located in McHenry County, official records are maintained by county offices such as the McHenry County Recorder, Treasurer, and Chief County Assessment Office. Users can access assessment and parcel information through the county’s official property records search, while recorded documents and tax details may be available through the appropriate McHenry County department. For the most accurate and current information, users should rely on these official county resources.
Union County, IL Property Records & Statistics
Union County is one of the more affordable places to rent in Illinois. The median rent is $610, compared with $762 statewide and $840.25 nationally, and only 19.8% of occupied homes are renter-occupied, slightly above the state figure of 18.61% and below the national figure of 21.81%. Most households in the county own their homes.
The median home value is $134,300, which is higher than the Illinois median of $116,950 but well below the national median of $173,750. Property taxes remain a significant cost for owners: the median property tax rate of 1.48% is lower than the state rate of 1.8% but roughly double the national rate of 0.74%.
The median household income in Union County is $58,246, below both the state figure of $65,699.50 and the national figure of $65,108. Lower rents and incomes go together here, so housing costs track what local households earn. Employment is a strength, with an unemployment rate of 2.26% against 2.92% in Illinois and 2.87% nationally.
Overall, the figures describe a county with modest rents, home values that sit between the state and national levels, moderate property taxes, incomes below average, and a labor market that is tighter than both comparison areas.
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Median Property Tax Rate
Median Home Value
Median Income
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Property Records, Assessments, and Valuations in Union
Union County property records cover tax assessments, recorded deeds and mortgages, property valuations, and foreclosure filings. The county has 12,605 total parcels, including 8,798 residential and 598 commercial parcels, with tax records covering 91.35% of the population for the 2024 assessment year. Recorded documents include 13,107 deeds and 8,130 mortgages.
| Key Data | Details |
|---|---|
| Total Parcels | 12,605 |
| Residential Parcels | 8,798 |
| Commercial Parcels | 598 |
| Tax Record Coverage | 91.35% |
| Assessment Year | 2024 |
| Deed Records | 13,107 |
| Mortgage Records | 8,130 |
| Properties with Valuation Data | 4,876 |
| Latest Valuation Update | August 19, 2025 |
| Notice of Sale Records | 442 |
Assignment and Release Records
Assignment and release records document what happens to a mortgage after it is recorded. An assignment shows that a mortgage was transferred from one lender or loan holder to another, and a release shows that the loan was paid off and the lien removed from the property.
Union County has 10,392 assignment and release records, including 998 assignment documents, 5,771 release documents, and 3,623 other documents. Assignments were recorded from May 29, 2008, to August 26, 2025, and releases from May 23, 2008, to August 29, 2025.
These records are useful for property research because they show who currently holds a mortgage and whether earlier loans have been satisfied. Buyers, owners, and title researchers can use them to confirm that past liens were cleared, trace a loan between lenders, and spot mortgages that may still be open before a sale or refinance.
How to Search Union County, IL Property Records
Union County property records are maintained in part by the Union County Clerk & Recorder's Office, which holds recorded deeds, mortgages, and related land documents. The county's records include 12,605 parcels, with deed and mortgage documents recorded from January 2, 2009, through August 25, 2025.
The best starting point is the Union County Clerk & Recorder land records page, the county's official resource for land records. Use it to find out how to look up deeds, mortgages, and other recorded instruments, and to see what the office offers for recording and copies.
To search, gather the property address, the owner's name, or the parcel number. Check the land records page for the available search options, enter the most complete details you have, and open the result that matches your property. Records can reveal ownership history, mortgage filings, parcel details, and tax and assessment information.
If you prefer to work in person or need help, the office is at 309 W Market Street, Jonesboro, IL 62952, open Monday through Friday, 8:00 AM to 4:00 PM. You can also call 618-833-5711.
Union Registrar of Deeds
The Union County Probate Office is located at 309 W Market Street, Jonesboro, IL, 62952 and can be reached at 618–833-5711. Office hours are Monday-Friday 8:00 AM – 4:00 PM. Records can be accessed through the official website unioncountyil.gov.
Union County Clerk & Recorder's Office
Union County Property Records FAQ
How can I search Union County property records by address?
Start with the Union County Clerk & Recorder land records page to see the available search options. Enter the street address as completely as possible, and try a shorter version if nothing appears. You can also call the office at 618-833-5711 for help locating a specific property.
How can I find property owners in Union County?
Ownership appears in the county's assessment records and in recorded deeds. The Union County land records page is the place to look for deeds showing who acquired a property. For other questions, contact the Clerk & Recorder's Office at 309 W Market Street, Jonesboro, or call 618-833-5711.
How can I check a property's assessed value in Union County?
Union County's records reflect the 2024 assessment year, and valuation data is available for 4,876 properties. To confirm the assessed value of a specific parcel, call the Clerk & Recorder's Office at 618-833-5711 and ask which county office handles assessments and how to look up your parcel number.
Where can I find Union County property tax bills and payment records?
Tax records in Union County reflect tax year 2024. For help finding a bill or payment history, call the Clerk & Recorder's Office at 618-833-5711 and ask for the right contact. Having your parcel number or the owner's name on hand makes the search quicker.
How can I find deeds and other recorded documents in Union County?
Deeds, mortgages, and other recorded documents are available through the Union County Clerk & Recorder land records page. The county has 13,107 deed records and 8,130 mortgage records. Visit 309 W Market Street, Jonesboro, Monday through Friday, 8:00 AM to 4:00 PM.
Where can I access Union County parcel maps and GIS information?
Union County has 12,605 parcels. For parcel maps and GIS information, call the Clerk & Recorder's Office at 618-833-5711 and ask which county office maintains parcel maps. A parcel number from a deed or tax bill helps staff point you to the correct map.
How can I check permits and zoning information in Union County?
Permit and zoning rules depend on where the property is located. Call the Clerk & Recorder's Office at 618-833-5711 to be directed to the right county office, and for properties inside a city or village, ask that municipality about its own permit and zoning requirements.
How can I create a list of property owners in Union County?
The county's tools are built for property-by-property lookups, using the land records page and recorded deeds. For a larger list or bulk records, contact the Clerk & Recorder's Office at 618-833-5711 to ask what is available and how requests are handled.