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Island Lake property assessments

Lake County, Illinois — from the county's own assessment roll.

1,987parcels in Island Lake
1,949with a published assessment
$75,704median assessed value
493above the local median

The typical parcel above the line carries $4,496 of assessed value more than the median for like-classified land in Island Lake, where that median works out at about $1.54 per square foot of land.

A median has half of everything above it by definition, boards do not grant every uniformity claim, and being above a median is a ground to argue rather than proof of error. These are assessed values, not tax bills.

Deadline

30 days from the publication of your township's assessment roll in the local newspaper. The window is short and it is not the same date across the county. Confirm it against your own notice — a late filing cannot be cured.

How to check your own

Type your Island Lake address and you get the verdict, the comparison and the arithmetic — free, without an account. If it says there is nothing there, it says so: roughly a third of properties get told not to file.

Check your Island Lake address

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