Cook County Value property tax analysis

921 Mapleton Ave, Oak Park, IL 60302

5 bed / 2 bath, 1,861 sqft, built 1920, in Oak Park Appraised at $540,000 for 2026.

Cook County account 16051220280000

Appraised value
$540,000
Tax year 2026
Market value
$540,000
Living area
1,861 sqft
$290 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 +35.7% from $397,800 in 2025 to $540,000 in 2026.