State comparison · 2025
Epidemiologists salary: District of Columbia vs Illinois
Epidemiologists in District of Columbia earn a median of $112,370. In Illinois, $102,720. After cost-of-living, the gap is 0.5% — not 9.4%.
Nominal pay gap
+9.4%
District of Columbia vs Illinois
COL-adjusted gap
-0.5%
After BEA Regional Price Parities
District of Columbia
Epidemiologists
- Median
- $112,370
- p25
- $92,660
- p75
- $130,130
- p10
- $63,580
- p90
- $168,970
- COL index (BEA RPP)100 = US average
- 109.9
Illinois
Epidemiologists
- Median
- $102,720
- p25
- $77,580
- p75
- $106,230
- p10
- $65,570
- p90
- $138,800
- COL index (BEA RPP)100 = US average
- 100.0
- Hiring velocity (180d)
- -29%
BLS Occupational Employment and Wage Statistics, May 2025. Cost-of-living adjustment from BEA Regional Price Parities (overall index). Hiring velocity from DOL OFLC public disclosure data, recent 180 days vs prior. See methodology.