Cook County tax delinquent list, IL
70,914 owners on this list today. Seats open. A list is not a reason: every owner here shows the reason.
Cook County, IL has 70,914 tax-delinquent properties today, read from Cook County Assessor's Office records and refreshed weekly. The top ZIP codes are 60426, 60411, 60628. 39,529 of these owners are also on the absentee owner list, the best one to stack. A property is on the list when tax is past due or the parcel is certified delinquent.
| Street and city | Score (1 to 10) | Why it may sell |
|---|---|---|
| Plymouth DrMarkham | 10of 10 | Owes about $48,300 in tax (53.7% of the value)Taxes 17 years behind |
| S Union AveChicago | 10of 10 | Owes about $14,100 in tax (12.8% of the value)Taxes 16 years behind |
| S State StChicago | 10of 10 | Taxes 5 years behindTax lien sold on the property |
Street name and city only: house numbers, owner names and mailing addresses are in the app.
How the Cook County list is made
Cook County's tax delinquent list comes from the Cook County Assessor's Office tax records: we read the delinquent-tax flag and the amount still owed on each tax bill for every parcel, every week. A property is on the list when: tax is past due or the parcel is certified delinquent.
Cook County data dictionaryPast-due balance or certified delinquent year.
Government, bank, builder and church owners are left out by default, so the count is owners you can actually write to.
Where the Cook County owners are
| City | Properties | Share |
|---|---|---|
| Chicago | 34,560 | 49% |
| Harvey | 5,750 | 8% |
| Robbins | 3,246 | 5% |
| Chicago Heights | 2,751 | 4% |
| Calumet City | 1,591 | 2% |
Top ZIP codes: 60426 Harvey (7,003), 60411 Chicago Heights (4,846), 60628 Chicago (4,000), 60636 Chicago (3,533), 60472 Robbins (3,283).
Tax-delinquent properties in Cook County by years owned and value
Tax-delinquent properties in Cook County: what stands out
70,914 tax-delinquent properties in Cook County right now, with a median county value of $33,010. 56% of these owners get their tax bill at another address, and the typical owner has held the property for 14 years. Those behind on tax owe $19,294 on average. 18% score 9 or 10 on the likely-to-sell model.
Chicago holds the most (34,560, 49%), followed by Harvey (5,750), Robbins (3,246), Chicago Heights (2,751).
By ZIP code, 60426 (Harvey) has 7,003, 60411 (Chicago Heights) has 4,846, 60628 (Chicago) has 4,000: the quickest places to start a mailing route.
Typical reasons on this list in Cook County: owes about $48,300 in tax (53.7% of the value); taxes 17 years behind; owes about $14,100 in tax (12.8% of the value); taxes 16 years behind.
The largest group by years owned is 10 to 20 years (12,290 properties); by county value it is Under $100k (50,056).
Where the official Cook County list lives
The records behind this list are kept by the Cook County Assessor's Office. Many counties let anyone look up a property there for free, and some publish the whole list. Check the office's website for the format and any fee.
The free route is real: for one list in one county, the county office may be enough. What LeadCounty adds is the weekly collection from every office, matching each record to the right property, a likely-to-sell score with reasons, filters, and stacking with absentee owner. Illinois rules and the Illinois guide explain how the process works.
Why these owners may sell
Unpaid property tax is a dated, money-based signal: the owner may be short of cash, may have inherited the house, or may no longer want it. Every year unpaid brings the county closer to a tax sale or tax foreclosure.
How to work the Cook County list
- Stack it with absentee owner or owned 15+ years to find owners who are least attached to the property.
- Sort by amount owed: larger balances usually mean a longer delay and more urgency.
- Check the tax-payment history on the property page: a first missed payment is different from three years behind.
- Lead with help: many owners do not know how close a tax sale is.
Dear [first name],
The county records show unpaid property tax on [property address]. If the tax bill has become a burden, you have options, and selling before penalties grow is one of them.
I buy houses as-is and can pay off the back taxes at closing, so you walk away with cash instead of a growing bill.
The app fills in each owner's name and address and prints envelopes or labels.
What you get in the app
- Every property on the list, with owner and mailing address
- Likely-to-sell score 1–10 and the reasons
- Stack with absentee owner
- Map, property history, export one row per property to Excel / CSV
- New owners on the list every Monday
The score and the reasons on every owner show who is under the most pressure, so you start with the best odds.
ARV × % − repairs − feeOpen the calculator →Tax delinquent in nearby counties
More Cook County lists
Questions
How many tax-delinquent properties are in Cook County, IL?
70,914 on the latest county file, from official Cook County records (Cook County Assessor's Office). The count is refreshed every week.
How often is the tax-delinquent list updated?
Every week, from the county's own tax records, so the list is live and current.
Does tax delinquent mean the property is for sale?
No. It means tax is past due. Many owners pay or set up a payment plan; some prefer to sell.
Every Cook County tax delinquent owner, with the reasons.
Explore free for 7 days, no card. Full access: cancel before day 7 and pay nothing. New owners on the list every Monday.
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