Cook County property tax
Worth Township property tax appeal guide
Worth Township filing window
Next window: the Assessor and Board of Review each open once a year; check your property now so you're ready.
Check your Worth property freeWhen were the calendar records checked?
- Cook County Assessor: last retrieved .
- Board of Review: last retrieved . Dates are unverified; confirm with the official source.
These are separate source retrievals, not editorial reviews or a guarantee that filing is open. A published source date can be older than its retrieval date. Missing dates do not mean there is no deadline.
Worth Township covers more area than the village that shares its name, and the township—not the municipality in a mailing address—sets the assessment calendar. It was reassessed with the South Triad for 2026 and is next scheduled for reassessment in 2029. The Board of Review opens a Worth Township window every year, including non-reassessment years.
Cities and villages in Worth Township
Property addresses in Worth Township most often list these cities:
- Oak Lawn — 16,171 single-family parcels (41% of this township's single-family parcels)
- Evergreen Park — 7,353 single-family parcels (19% of this township's single-family parcels)
- Alsip — 4,275 single-family parcels (11% of this township's single-family parcels)
- Palos Heights — 2,563 single-family parcels (7% of this township's single-family parcels)
- Blue Island — 2,224 single-family parcels (6% of this township's single-family parcels)
- Chicago Ridge — 2,024 single-family parcels (5% of this township's single-family parcels)
- Worth — 1,940 single-family parcels (5% of this township's single-family parcels)
- Crestwood — 898 single-family parcels (2% of this township's single-family parcels)
- Bridgeview — 582 single-family parcels (1% of this township's single-family parcels)
- Merrionette Park — 509 single-family parcels (1% of this township's single-family parcels)
A city can span more than one township, so confirm your township on your assessment notice or the Cook County Assessor's site.
Recent home sales in Worth Township
From August 11, 2024 through August 11, 2026, the comparison pool contains 2,065 recorded single-family sales.
- Median sale price: $305,000
- Middle-half sale price range (25th–75th percentile): $251,195–$360,000
- Median sale price per square foot: $226
- Median building size: 1,293 square feet
- Median year built: 1958
These are recorded single-family sales used as comparison evidence, not an estimate of any home's value.
Evidence to review
- Confirm the township and assessment neighborhood in the county record before treating a nearby mailing address as local evidence.
- Compare the subject and each sale by residential class, building style, living area, construction age, and unit count.
- Review lot frontage, land area, and accessory improvements when similar houses sit on materially different sites.
- For repairs or deterioration that sale records do not show, use dated photographs and documents that identify the affected part of the property.
To check property facts on the county map, follow our CookViewer property comparison walkthrough. Keep assessment values separate from recorded sale prices.
Official sources
Cook County Assessor calendar · Cook County Board of Review appeals
You file directly with Cook County for free. We provide optional research, not representation or guaranteed savings.
Other South Triad townships
Related guides
- Cook County property tax appeal evidence checklist — Organize records, sales comparisons, photos, and submission confirmations with a printable preparation checklist.
- How much could a Cook County property tax appeal save? — Work through an illustrative tax calculation and understand why an assessment reduction is different from a tax saving.
- Wrong square footage on your Cook County assessment? — Verify property measurements, document a record error, and prepare a correction request with an evidence checklist.
- Why are my neighbor’s property taxes lower in Cook County? — Separate assessments from exemptions, compare similar homes, and work through a neighbor comparison before appealing.
- Cook County property tax appeal after buying a home — Assessment higher than your purchase price? Compare the figures, gather closing documents, and check your appeal window.
- How to use CookViewer to compare Cook County properties — Find the official map, compare property facts, and keep assessment figures separate from recorded sale prices.
- Why did my Cook County property tax bill go up? — Work through annual totals, assessment changes, exemptions, and tax rates before choosing your next step.
- How to read your Cook County assessment notice — Understand the numbers, verify your property facts, and turn your notice into an evidence checklist.
- Missed your Cook County property tax appeal deadline? — Find out which window closed, check the other appeal office, and prepare for what comes next.
- Assessor appeal vs Board of Review appeal — Understand the two appeal offices, their separate calendars, and the evidence each reviews.
- How to find comparable sales — Review a hypothetical sales comparison and print a blank research worksheet.
- How to appeal without a lawyer — Gather evidence, check your township window, and file directly with Cook County.
- Cook County property tax exemptions: are you missing one? — Check which exemptions apply, renew automatically, or need annual filing.
- What happens after a Board of Review appeal? — Understand PTAB's role after a Board of Review decision and its filing instructions.
- How to find your Cook County PIN — Find your 14-digit PIN on county records and use it for filings and research.
- Cook County property tax appeal research guide — See how property records and comparable sales can support an assessment appeal.
Guide revision dates describe changes to this guidance. County calendar retrievals are shown separately above; confirm filing dates with the office receiving your appeal.