State comparison · 2025
Mining and Geological Engineers salary: Illinois vs Oklahoma
Mining and Geological Engineers in Oklahoma earn a median of $131,660. In Illinois, $107,690. After cost-of-living, the gap is 28.2% — not 18.2%.
Nominal pay gap
-18.2%
Illinois vs Oklahoma
COL-adjusted gap
-28.2%
After BEA Regional Price Parities
Illinois
Mining and Geological Engineers
- Median
- $107,690
- p25
- $93,590
- p75
- $131,160
- p10
- $68,990
- p90
- $157,150
- COL index (BEA RPP)100 = US average
- 100.0
Oklahoma
Mining and Geological Engineers
- Median
- $131,660
- p25
- $102,960
- p75
- $132,580
- p10
- $69,990
- p90
- $178,800
- COL index (BEA RPP)100 = US average
- 87.8
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.