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Kane County, Illinois sentencing data

As of June 30, 2026, according to Illinois Department of Corrections records, 865 people sentenced in Kane County were held in Illinois state prisons. Their median sentence is 9 years, shorter than the statewide median of 10 years. 31% are serving 20 years or more, compared with 33% statewide. The most common offense is murder/intent to kill/injure.

865people in prison
9 yearsmedian sentence (state: 10 years)
31%serving 20+ years (state: 33%)
36life sentences

Sentences by offense: Kane County vs. Illinois

Offenses with 10+ people. Median of the longest sentence from each person's most recent sentencing; life and death sentences not included.

OffensePeopleKane median (yrs)Illinois median (yrs)
Murder/Intent To Kill/Injure934540
Pred Crim Sex Asslaut/Victim <13751014
Attempt Murder/Intent To Kill/Injure322625
Uuw-Felon Poss/Use Firearm Prior2976
Armed Viol/Category I Weapon2315.518
Agg Battery/Discharge Firearm231212
Armed Habitual Criminal188.58
Crim Sex Aslt/Family Member<1818810
Agg Crim Sex Assault/Bodily Harm171515
Murder/Strong Prob Kill/Injure173540
Agg Domestic Battery/Strangle174.54.5
Manu/Del 01-15 Grams Cocaine165.56.5

Race

GroupPeopleShare
Hispanic41248%
Black27432%
White17020%

Groups with fewer than 10 people are not shown.

Other Illinois counties

About this data

Source: Illinois Department of Corrections public inmate records. People currently in state prison custody whose longest sentence was imposed in Kane County, one record per person, using the longest sentence from their most recent sentencing. Criminal history is not in the data, so differences between counties can reflect prior records as well as sentencing practice.