State comparison · 2025
Mathematicians salary: Illinois vs Washington
Mathematicians in Washington earn a median of $162,280. In Illinois, $130,970. After cost-of-living, the gap is 13.6% — not 19.3%.
Nominal pay gap
-19.3%
Illinois vs Washington
COL-adjusted gap
-13.6%
After BEA Regional Price Parities
Illinois
Mathematicians
- Median
- $130,970
- p25
- $100,680
- p75
- $130,970
- p10
- $49,190
- p90
- $170,010
- COL index (BEA RPP)100 = US average
- 100.0
- Hiring velocity (180d)
- +67%
Washington
Mathematicians
- Median
- $162,280
- p25
- $112,900
- p75
- $194,120
- p10
- $102,050
- p90
- $239,960
- COL index (BEA RPP)100 = US average
- 107.0
- Hiring velocity (180d)
- +400%
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.