Cook County Value

6579 N Onarga Ave, Chicago, IL 60631

4 bed / 2 bath, 1,671 sqft, built 1926, in Jefferson. Assessor market value for 2025: $460,000.

Cook County account 09364140380000

Assessor market value
$460,000
Tax year 2025 · before exemptions; the assessed value on your notice is 10% of it
Living area
1,671 sqft
$275 per sqft
Year built
1926
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 60631 and Jefferson assessment pages.

Appeal deadlines

Jefferson 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 $460,000 in 2024 to $460,000 in 2025.
  • Assessor market value per square footThe current public record shows about $275 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the Jefferson neighborhood and ZIP 60631.
  • Neighborhood value signalAmong 1,989 residential records in the same neighborhood, the average assessor market value is about $282 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.

  • 6736 N Odell Ave, Chicago, IL 60631
    1,671 sqft | $275/sqft | built 1925 | Similar size (1,671 vs 1,671 sqft); Similar age (1925 vs 1926); Similar lot size (5,625 vs 5,606 sqft)
    $460,010
  • 7024 N Oriole Ave, Chicago, IL 60631
    1,702 sqft | $264/sqft | built 1925 | Similar size (1,702 vs 1,671 sqft); Similar age (1925 vs 1926); Similar lot size (5,462 vs 5,606 sqft)
    $450,000
  • 6859 N Olcott Ave, Chicago, IL 60631
    1,683 sqft | $285/sqft | built 1925 | Similar size (1,683 vs 1,671 sqft); Similar age (1925 vs 1926); Similar lot size (6,027 vs 5,606 sqft)
    $480,010
  • 6517 N Oxford Ave, Chicago, IL 60631
    1,689 sqft | $450/sqft | built 1928 | Similar size (1,689 vs 1,671 sqft); Similar age (1928 vs 1926); Similar lot size (5,580 vs 5,606 sqft)
    $760,000
  • 7251 W Greenleaf Ave, Chicago, IL 60631
    1,649 sqft | $279/sqft | built 1928 | Similar size (1,649 vs 1,671 sqft); Similar age (1928 vs 1926); Similar lot size (5,200 vs 5,606 sqft)
    $460,000

Recent comparable sales

Sales selected by similarity to the subject property.

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$460,000$00.0%
2024$460,000+$7,660+1.7%
2023$452,340−$47,660−9.5%
2022$500,000$00.0%
2021$500,000+$174,310+53.5%
2020$325,690——
5-year total+$134,310+41.2%