Data Scientist Salary in Illinois
Data Scientists in Illinois earn an average of $112,576 per year across 1 metro area. This is +4.2% higher than the national average.
Average Salary
$112,576
per year
Hourly Rate
$54.12
per hour
vs National
+4.2%
$108,020 national
Salary Range
$72,952
to $158,986
Cost of Living Adjusted Salary
Nominal Salary
$112,576
Cost of Living Index
95
100 = national average
Adjusted Salary
$118,501
purchasing power equivalent
After adjusting for Illinois's cost of living (below average), a Data Scientist's salary of $112,576 has the purchasing power of $118,501 in an average-cost area.
Data Scientist Salary by City in Illinois
| City | Median Salary | Hourly Rate | Entry Level (P10) | Senior (P90) | Employment |
|---|---|---|---|---|---|
| Chicago, IL | $112,576 | $54.12/hr | $72,952 | $158,986 | 167 |
Source: Bureau of Labor Statistics OEWS Survey, 2026. Sorted by median salary (highest first).
Illinois vs National Average
Data Scientist Salary Comparison
Employment in Illinois
There are approximately 167 Data Scientists employed across 1 metro area in Illinois.
Key Industries: Finance, Manufacturing, Technology
State Income Tax: 4.95% flat rate
Data Scientist Salary Range in Illinois
Entry Level (10th Percentile)
$72,952
Starting salary for new Data Scientists
Median (50th Percentile)
$112,576
Mid-career Data Scientist salary
Senior (90th Percentile)
$158,986
Top earners in the field
Related Occupations in Illinois
Software Developer
$141,964
avg in IL
+$29,388 vs Data Scientist
Information Security Analyst
$128,005
avg in IL
+$15,429 vs Data Scientist
Computer Systems Analyst
$110,072
avg in IL
-$2,504 vs Data Scientist
Network Administrator
$96,458
avg in IL
-$16,118 vs Data Scientist
Computer User Support Specialist
$61,537
avg in IL
-$51,039 vs Data Scientist
Data Scientist Salary in Neighboring States
Compare Data Scientist salaries in Illinois with nearby states to find the best opportunities.
More Illinois Data
Frequently Asked Questions
What is the average Data Scientist salary in Illinois?
The average Data Scientist salary in Illinois is $112,576 per year ($54.12/hour) based on 2026 data across 1 metro areas. This is 4.2% above the national average of $108,020.
What is the highest paying city for Data Scientists in Illinois?
Chicago, IL is the highest paying city for Data Scientists in Illinois, with a median salary of $112,576 per year.
What is the salary range for Data Scientists in Illinois?
Data Scientist salaries in Illinois range from $72,952 (entry-level, 10th percentile) to $158,986 (experienced, 90th percentile). The median salary is $112,576 per year.
About This Data
Salary data is sourced from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics (OEWS) survey. State-level averages are calculated from metro area data within Illinois. Figures represent 2026 estimates and may not reflect all employers or self-employed workers. Cost of living adjustments use regional indices to provide purchasing power context.