Across the 14 townships Morganwell covers, 240,285 of 806,962 homes checked (30%) come up assessed higher than similar homes nearby or above what similar homes sold for.
Data as of October 20, 2026. Source: Cook County Assessor open data (2026 assessed values, property characteristics and recorded sales), checked by Morganwell. Estimates from public records, not an appraisal and not a promise; the county decides every appeal. How the check works
| Township | Homes checked | Assessed above similar homes | Median estimated saving | 2026 appeal deadline |
|---|---|---|---|---|
| Berwyn | 12,956 | 4,893 (38%) | $715 a year | Closed: the Cook County Board of Review window closed September 29, 2026 |
| Hyde Park | 78,325 | 24,212 (31%) | $340 a year | Closed: the Cook County Assessor window closed October 8, 2026 |
| Leyden | 27,821 | 7,709 (28%) | $531 a year | Closed: the Cook County Assessor window closed October 14, 2026 |
| Worth | 54,330 | 17,537 (32%) | $577 a year | Closed: the Cook County Assessor window closed October 15, 2026 |
| Wheeling | 54,282 | 11,471 (21%) | $652 a year | File with the Cook County Assessor by October 22, 2026 |
| Proviso | 44,963 | 16,198 (36%) | $642 a year | File with the Cook County Assessor by October 27, 2026 |
| Lake | 145,863 | 48,636 (33%) | $311 a year | File with the Cook County Assessor by October 29, 2026 |
| Palatine | 39,233 | 8,895 (23%) | $644 a year | File with the Cook County Assessor by November 4, 2026 |
| Orland | 36,133 | 13,010 (36%) | $631 a year | File with the Cook County Assessor by November 6, 2026 |
| Jefferson | 135,558 | 38,902 (29%) | $530 a year | File with the Cook County Assessor by November 12, 2026 |
| West Chicago | 97,159 | 22,181 (23%) | $668 a year | File with the Cook County Board of Review by November 6, 2026. Evidence by November 16, 2026 |
| Lyons | 35,511 | 13,040 (37%) | $914 a year | File with the Cook County Board of Review by November 6, 2026. Evidence by November 16, 2026 |
| Northfield | 31,987 | 8,368 (26%) | $1,000 a year | File with the Cook County Board of Review by November 6, 2026. Evidence by November 16, 2026 |
| Stickney | 12,841 | 5,233 (41%) | $659 a year | File with the Cook County Board of Review by November 6, 2026. Evidence by November 16, 2026 |
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Each home is compared with similar homes in the same assessor neighborhood (class, size, age) and with recent arm’s-length sales; condominium units with recent sales in the same building. A home counts as assessed above similar homes when that comparison supports a lower value. Savings use each home’s own tax rate. Full methodology.