Cook County Value

622 6th St, Wilmette, IL 60091

3 bed / 2 bath, 2,143 sqft, built 1941, in New Trier. Assessor market value for 2026: $1,140,010.

Cook County account 05342120010000

Assessor market value
$1,140,010
Tax year 2026 · before exemptions; the assessed value on your notice is 10% of it
Living area
2,143 sqft
$532 per sqft
Year built
1941
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 60091 and New Trier assessment pages.

Local guide: New Trier Township 2026 Property Tax Appeal Guide.

Appeal deadlines

The 2026 appeal windows for New Trier have closed (Assessor , Board of Review ). 2027 notices usually start in March.

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 $1,140,010 in 2025 to $1,140,010 in 2026.
  • Assessor market value per square footThe current public record shows about $532 per square foot before any comparable-property adjustments.
  • Nearby comparison areaThis page starts the equity review with public records for the New Trier neighborhood and ZIP 60091.
  • Neighborhood value signalAmong 807 residential records in the same neighborhood, the average assessor market value is about $481 per square foot.
  • Area year-over-year signalNearby residential records with prior-year values moved about -2.6% on average.

Comparable assessments

Similar public appraisal records selected for this property's equity comparison.

  • 143 Laurel Ave, Wilmette, IL 60091
    2,176 sqft | $487/sqft | built 1946 | Similar size (2,176 vs 2,143 sqft); Similar age (1946 vs 1941); Similar lot size (11,200 vs 11,550 sqft)
    $1,060,000
  • 530 Maple Ave, Wilmette, IL 60091
    2,138 sqft | $514/sqft | built 1928 | Similar size (2,138 vs 2,143 sqft); Similar lot size (10,800 vs 11,550 sqft); Same quality (Average)
    $1,100,000
  • 333 Sheridan Rd, Wilmette, IL 60091
    2,038 sqft | $417/sqft | built 1953 | Similar size (2,038 vs 2,143 sqft); Similar lot size (10,440 vs 11,550 sqft); Same quality (Average)
    $850,000
  • 934 Linden Ave, Wilmette, IL 60091
    2,040 sqft | $523/sqft | built 1946 | Similar size (2,040 vs 2,143 sqft); Similar age (1946 vs 1941); Lot 13% smaller (10,000 vs 11,550 sqft)
    $1,066,000
  • 319 3rd St, Wilmette, IL 60091
    2,114 sqft | $378/sqft | built 1953 | Similar size (2,114 vs 2,143 sqft); Lot 17% smaller (9,588 vs 11,550 sqft); Same quality (Average)
    $800,000

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

No change in 2026 from 2025.

Assessor market value by tax year, with the change from the previous year listed
Tax yearAssessor market valueChangeChange %
2026$1,140,010$00.0%
2025$1,140,010+$365,000+47.1%
2024$775,010$00.0%
2023$775,010−$335,000−30.2%
2022$1,110,010+$453,530+69.1%
2021$656,480+$100.0%
2020$656,470——
6-year total+$483,540+73.7%