Cook County Value

728 S May St, Calumet City, IL 60409

1 bed / 1 bath, 516 sqft, built 1915, in Thornton. Assessor market value for 2025: $43,270.

Cook County account 30182070230000

Assessor market value
$43,270
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
516 sqft
$84 per sqft
Year built
1915
Average quality

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 60409 and Thornton assessment pages.

Appeal deadlines

Thornton 2026 appeal dates 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 stayed about the same, from $43,270 in 2024 to $43,270 in 2025.
  • Assessor market value per square footThe current public record shows about $84 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Thornton neighborhood and ZIP 60409.
  • Neighborhood value signalAmong 3,371 residential records in the same neighborhood, the average assessor market value is about $87 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values stayed about flat on average.

Comparable assessments

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

  • 728 S May St, Calumet City, IL 60409
    516 sqft | $32/sqft | built 1915 | Similar size (516 vs 516 sqft); Built same year (1915); Similar lot size (2,760 vs 2,760 sqft)
    $16,730
  • 776 May St, Calumet City, IL 60409
    528 sqft | $123/sqft | built 1928 | Similar size (528 vs 516 sqft); Similar lot size (2,760 vs 2,760 sqft); Same quality (Average)
    $65,000
  • 331 153rd St, Calumet City, IL 60409
    520 sqft | $183/sqft | built 1925 | Similar size (520 vs 516 sqft); Lot 14% larger (3,150 vs 2,760 sqft); Same quality (Average)
    $95,000
  • 558 Douglas Ave, Calumet City, IL 60409
    512 sqft | $137/sqft | built 1903 | Similar size (512 vs 516 sqft); Lot 12% larger (3,100 vs 2,760 sqft); Same quality (Average)
    $70,000
  • 311 Elizabeth St, Calumet City, IL 60409
    516 sqft | $145/sqft | built 1927 | Similar size (516 vs 516 sqft); Lot 18% smaller (2,268 vs 2,760 sqft); Same quality (Average)
    $75,000

Recent comparable sales

No usable comparable sales are available in this data snapshot.

Public appraisal comparison for 2025. 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

No change in 2025 from 2024.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2025$43,270$00.0%
2024$43,270$00.0%
2023$43,270+$16,610+62.3%
2022$26,660$00.0%
2021$26,660+$100.0%
2020$26,650——
5-year total+$16,620+62.4%