State comparison · 2025
First-Line Supervisors of Construction Trades salary: Illinois vs South Dakota
First-Line Supervisors of Construction Trades in Illinois earn a median of $105,750. In South Dakota, $77,690. After cost-of-living, the gap is 20.6% — not 36.1%.
Nominal pay gap
+36.1%
Illinois vs South Dakota
COL-adjusted gap
+20.6%
After BEA Regional Price Parities
Illinois
First-Line Supervisors of Construction Trades
- Median
- $105,750
- p25
- $82,550
- p75
- $124,460
- p10
- $62,500
- p90
- $132,590
- COL index (BEA RPP)100 = US average
- 100.0
South Dakota
First-Line Supervisors of Construction Trades
- Median
- $77,690
- p25
- $67,400
- p75
- $87,790
- p10
- $60,200
- p90
- $97,940
- COL index (BEA RPP)100 = US average
- 88.6
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.