Cook County Value property tax analysis

603 S East Ave, Oak Park, IL 60304

6 bed / 4 bath, 4,824 sqft, built 1909, in Oak Park Appraised at $870,000 for 2026.

Cook County account 16182110190000

Appraised value
$870,000
Tax year 2026
Market value
$870,000
Living area
4,824 sqft
$180 per sqft
Year built
1909
Average

Why this page matters for a protest

A strong tax protest page needs the county value, property facts, and enough context to compare this home with similar properties nearby. This page gives homeowners a starting point before reviewing comparable homes and prior-year changes.

The county value changed +35.0% from $644,220 in 2025 to $870,000 in 2026.