Cook County is divided into 20 subcircuits for the purpose of electing subcircuit judges. Six subcircuits are located entirely within the City of Chicago (subcircuits 1, 5, 6, 8, 14, & 20) and five subcircuits are located entirely in the County outside of the corporate limits of the City of Chicago (4, 12, 13, 15, & 18). Nine subcircuits have territory in both the City of Chicago and the outer County (2, 3, 7, 9, 10, 11, 16, 17, & 19).

Cook Circuit
Cook Subcircuit 1
Cook Subcircuit 2
Cook Subcircuit 3
Cook Subcircuit 4
Cook Subcircuit 5
Cook Subcircuit 6
Cook Subcircuit 7
Cook Subcircuit 8
Cook Subcircuit 9
Cook Subcircuit 10
Cook Subcircuit 11
Cook Subcircuit 12
Cook Subcircuit 13
Cook Subcircuit 14
Cook Subcircuit 15
Cook Subcircuit 16
Cook Subcircuit 17
Cook Subcircuit 18
Cook Subcircuit 19
Cook Subcircuit 20