Cook County Value property tax analysis

309 N Marion St, Oak Park, IL 60302

4 bed / 2 bath, 2,042 sqft, built 1905, in Oak Park Appraised at $950,000 for 2026.

Cook County account 16071070190000

Appraised value
$950,000
Tax year 2026
Market value
$950,000
Living area
2,042 sqft
$465 per sqft
Year built
1905
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 +149.6% from $380,650 in 2025 to $950,000 in 2026.