Correctional Officer Salary in Illinois
The median correctional officer salary in Illinois is $47,130 per year, which is 5% below the national median of $49,610.
Correctional Officer Salary Overview in Illinois (2026)
Illinois ranks #24 out of 50 states for correctional officer compensation. Illinois falls in the middle of the pack for correctional officer pay, offering salaries near the national average. At $47,130 per year, correctional officers in Illinois earn $2,480 less than the national median of $49,610.
Illinois's cost of living is near the national average at 95%, meaning correctional officer salaries here translate closely to their face value in purchasing power.
The salary spread in Illinois is significant: correctional officers at the 10th percentile earn $31,350, while those at the 90th percentile bring home $74,100 — a $42,750 gap that reflects differences in experience, specialization, employer type, and metro area. The highest-paying city in Illinois for this role is Naperville, where the median reaches $53,579.
Nationally, correctional officer employment is projected to grow -2% over the next decade (decline). Despite slower growth nationally, experienced correctional officers with in-demand specializations continue to command strong salaries.
Correctional Officer Salary in Illinois by Experience
In Illinois, an entry-level correctional officer earns around $33,250, while experienced professionals earn up to $68,400 per year. The cost of living index in Illinois is 95% of the national average.
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Check Your Rate — No Credit Impact →Salary Percentiles in Illinois
| Percentile | IL Salary |
|---|---|
| 10th Percentile | $31,350 |
| 25th Percentile | $37,050 |
| Median (50th) | $47,130 |
| 75th Percentile | $59,850 |
| 90th Percentile | $74,100 |
Correctional Officer Salary by City in Illinois
The largest employment areas for correctional officers in Illinois include Chicago, Aurora, Naperville, and Rockford. Salaries vary by city based on local cost of living and demand.
How to Become a Correctional Officer in Illinois
Education
Most correctional officer positions require a high school diploma. Illinois has several accredited institutions offering relevant programs.
Key Skills
Job Outlook in Illinois
Nationally, correctional officer employment is projected to grow -2% over the next decade (decline). Illinois's demand may vary based on local industry trends.
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