The final 2025 Cook County property tax equalization factor (multiplier) is 3.0300 as announced by the Illinois Department of Revenue.
E s t . 1 9 8 7 i n C H I C A G O U . S . A .

E s t . 1 9 8 7 i n C H I C A G O U . S . A .
The final 2025 Cook County property tax equalization factor (multiplier) is 3.0300 as announced by the Illinois Department of Revenue.