Principal Data Science salary in Illinois
A real-employer view of Principal Data Science pay, clustered from DOL OFLC certified filings. Variants like Senior, Lead, and II/III titles fold into this cluster — the wage range below reflects all of them.
Principal Data Science in Illinois: actual employer-disclosed pay
Public records from 59 certified H-1B Labor Condition Applications filed with the U.S. Department of Labor. Median offered wage: $138,715. Every figure below is an actual offered salary an employer attested to under federal law.
By DOL wage level
DOL classifies every offer into one of four wage levels based on the role's experience and skill requirements.
| Level | Filings | Median offer |
|---|---|---|
| Level II — qualified | 6 | $156,000 |
| Level III — experienced | 3 | $150,000 |
| Level IV — fully competent | 31 | $138,715 |
Top employers filing for this role
Companies with the most certified filings for Principal Data Science in Illinois. Median offer is across all of that employer's filings. Click a company for its full H-1B salary breakdown.
| Employer | Most-filed title | Filings | Median |
|---|---|---|---|
| Discover Products Inc | Principal Data Science | 24 | $138,715 |
| DFS Services LLC | Principal Data Science | 11 | $135,874 |
| Discover Products Inc. | Principal Data Science | 6 | $135,874 |
| Microsoft Corporation | Data Science | 6 | $158,648 |
| Capital One, National Association | Principal Data Science | 5 | $135,874 |
| Capital One Services, LLC | Principal Data Science | 2 | $135,874 |
| Discover Bank | Principal Data Science | 2 | $139,858 |
| PayPal, Inc. | Data Science 1 | 2 | $150,000 |
| Brillio LLC | Data Science Lead | 1 | $94,000 |
Recent sample filings
A snapshot of recent certified offers. Each line is a real, public, verifiable record.
- Data Science at Microsoft Corporation$190,000ChicagoWage Level IIIDecided Mar 16, 2026I-200-26068-688134
- Principal Data Science at DFS Services LLC$135,874RiverwoodsDecided Mar 6, 2026I-200-26060-671709
- Principal Data Science at Capital One, National Association$135,874RiverwoodsDecided Feb 26, 2026I-200-26050-651052
- Principal Data Science at Capital One Services, LLC$135,874RiverwoodsDecided Feb 4, 2026I-200-26028-597333
- Principal Data Science at Capital One Services, LLC$135,874RiverwoodsDecided Jan 14, 2026I-200-26007-541585
- Principal Data Science at Capital One, National Association$135,874RiverwoodsDecided Jan 9, 2026I-200-26002-528346
- Principal Data Science at DFS Services LLC$135,874RiverwoodsDecided Jan 2, 2026I-200-25358-509862
- Principal Data Science at Discover Products Inc.$135,874RiverwoodsDecided Dec 3, 2025I-200-25329-435780
Source: U.S. Department of Labor, Office of Foreign Labor Certification. Disclosed wages reflect what employers attested to pay; actual paid wages may differ. Only certified filings are shown — denied and withdrawn cases are excluded.