Cook County Value property tax analysis

550 N Marion St, Oak Park, IL 60302

5 bed / 3 bath, 2,878 sqft, built 1903, in Oak Park Appraised at $990,000 for 2026.

Cook County account 16063180140000

Appraised value
$990,000
Tax year 2026
Market value
$990,000
Living area
2,878 sqft
$344 per sqft
Year built
1903
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 +33.0% from $744,600 in 2025 to $990,000 in 2026.