Illinois ranks 15th of 50 states and D.C. for data scientists pay, trailing top-paying Washington ($158,760) by $45,270 — a 40% gap.
The 10th-to-90th percentile range runs from $65,420 to $172,220 — a $106,800 spread, 18% tighter than the national $130,760 range.
Illinois employs roughly 3.2% of all data scientists in the country (7,390 workers).
Salary Range: 10th to 90th Percentile
Full Percentile Breakdown
| Percentile | Annual Wage | Hourly Wage |
|---|---|---|
| 10th percentile (entry-level) | $65,420 | $31.45 |
| 25th percentile | $82,010 | $39.43 |
| 50th percentile (median) | $113,490 | $54.56 |
| 75th percentile | $147,130 | $70.74 |
| 90th percentile (top earners) | $172,220 | $82.80 |
| Mean (average) | $119,010 | $57.22 |
How Illinois Compares
| State | Median Annual | vs. Illinois |
|---|---|---|
| Illinois (current) | $113,490 | n/a |
| Washington | $158,760 | +40% |
| District of Columbia | $137,120 | +21% |
| California | $136,800 | +21% |
| Massachusetts | $132,250 | +17% |
| New Jersey | $130,370 | +15% |
| Virginia | $126,070 | +11% |
| New York | $125,400 | +10% |
| Maryland | $124,340 | +10% |
Showing top-paying states with available data. View all states →
Related Occupations in Illinois
| Occupation | Median Annual | Employment |
|---|---|---|
| Medical and Health Services Managers | $113,610 | 21,110 |
| First-Line Supervisors of Firefighting and Prevention Workers | $113,730 | 2,110 |
| Information Security Analysts | $114,300 | 4,560 |
| Sales Representatives, Wholesale and Manufacturing, Technical and Scientific Products | $110,420 | 8,600 |
| Management Analysts | $110,370 | 44,010 |
| Engineers, All Other | $109,380 | 3,010 |
Frequently Asked Questions
What is the average Data Scientists salary in Illinois?
The mean data scientists salary in Illinois is $119,010 per year. The median (middle) salary is $113,490 per year.
What is the starting salary for a Data Scientists in Illinois?
Entry-level data scientistss (10th percentile) in Illinois typically earn around $65,420 per year. Workers at the 25th percentile earn approximately $82,010 per year.
What is the highest Data Scientists salary in Illinois?
Top earners (90th percentile) in this occupation in Illinois make approximately $172,220 per year. Those in the 75th percentile earn around $147,130 per year.
How does the Illinois Data Scientists salary compare to the national average?
The median data scientists salary in Illinois is $113,490, which is +1% above national average of $112,590.