Cook County Value

911 State St Lemont, IL 60439

3 bed / 1 bath, 1,149 sqft, built 1911, in Lemont. Assessor market value for 2026: $260,010.

Cook County account 22292270090000

In line with similar homes

8 similar homes nearby support a value at or above your county value.

Assessor market value$260,010
Similar homes$291,271
No gap: similar homes are at or above the county value · bars start at $0

How sure: High · 8 similar homes (5 shown below) · public records only

Assessor market value
$260,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,149 sqft
$226 per sqft
Year built
1911
Average quality

What we found

Similar homes' assessments

Weak

1 of 8 similar homes is assessed lower per square foot. Their similarity-weighted median is $253.50/sqft, which supports a value of $291,271.

Compare this assessment

Start with the county value and property facts, then review appraisal comps, recent sales, and prior-year changes to decide whether the assessment is worth challenging. The comps on this page are free to review; email sign-in is only used to save a printable report.

For nearby context, browse ZIP 60439 and Lemont assessment pages.

Local guide: Lemont Township 2026 Property Tax Appeal Guide.

Appeal deadlines

For Lemont, appeals to the Assessor closed . Board of Review dates for Lemont have not been published yet.

Deadline rule: Set by township: file with the Assessor by your township's last file date, and with the Board of Review while your township is open there. Evidence is reviewed by the Cook County Assessor's Office or, in a separate appeal, by the Cook County Board of Review. Dates checked against the official source.

Assessment snapshot

These public CCAO records highlight what may be worth checking before you file.

  • Assessment changeThe assessor market value increased 13.0% from $230,010 in 2025 to $260,010 in 2026.
  • Assessor market value per square footThe current public record shows about $226 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Lemont neighborhood and ZIP 60439.
  • Neighborhood value signalAmong 1,277 residential records in the same neighborhood, the average assessor market value is about $255 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about +25.5% on average.

Comparable assessments

Showing 5 of the 8 similar homes in this property's equity comparison, from public appraisal records.

  • 16054 W New Ave Lemont, IL 60439
    1,128 sqft | $195/sqft | built 1918 | Similar size (1,128 vs 1,149 sqft); Similar lot size (9,200 vs 9,700 sqft); Same quality (Average)
    $220,000
  • 220 Freehauf St Lemont, IL 60439
    1,144 sqft | $254/sqft | built 1911 | Similar size (1,144 vs 1,149 sqft); Built same year (1911); Lot 16% larger (11,280 vs 9,700 sqft)
    $290,000
  • 516 Ledochowski St Lemont, IL 60439
    1,293 sqft | $232/sqft | built 1918 | 12% larger (1,293 vs 1,149 sqft); Similar lot size (9,520 vs 9,700 sqft); Same quality (Average)
    $300,000
  • 217 Lincoln St Lemont, IL 60439
    1,104 sqft | $281/sqft | built 1925 | Similar size (1,104 vs 1,149 sqft); Lot 10% smaller (8,712 vs 9,700 sqft); Same quality (Average)
    $310,000
  • 901 State St Lemont, IL 60439
    1,102 sqft | $236/sqft | built 1918 | Similar size (1,102 vs 1,149 sqft); Lot 19% larger (11,550 vs 9,700 sqft); Same quality (Average)
    $260,000

Recent comparable sales

Sales selected by similarity to the subject property.

Public appraisal comparison for 2026. Prepared . Appraisal source: Cook County Assessor's Office. Sales data checked in this snapshot: . Matches consider available size, age, location and property characteristics. How comparisons work.

Value history

Up 13.0% in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$260,010+$30,000+13.0%
2025$230,010$00.0%
2024$230,010$00.0%
2023$230,010+$39,890+21.0%
2022$190,120$00.0%
2021$190,120+$100.0%
2020$190,110——
6-year total+$69,900+36.8%