Cook County Value property tax analysis

831 N Marion St, Oak Park, IL 60302

3 bed / 3 bath, 2,222 sqft, built 1920, in Oak Park Appraised at $780,000 for 2026.

Cook County account 16063000150000

Appraised value
$780,000
Tax year 2026
Market value
$780,000
Living area
2,222 sqft
$351 per sqft
Year built
1920
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 +30.4% from $598,230 in 2025 to $780,000 in 2026.