Cook County Value property tax analysis

621 Wenonah Ave, Oak Park, IL 60304

4 bed / 2 bath, 1,664 sqft, built 1922, in Oak Park Appraised at $580,000 for 2026.

Cook County account 16181110200000

Appraised value
$580,000
Tax year 2026
Market value
$580,000
Living area
1,664 sqft
$349 per sqft
Year built
1922
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 +35.3% from $428,830 in 2025 to $580,000 in 2026.