State comparison · 2025
Plumbers, Pipefitters, and Steamfitters salary: Illinois vs South Dakota
Plumbers, Pipefitters, and Steamfitters in Illinois earn a median of $99,950. In South Dakota, $51,620. After cost-of-living, the gap is 71.6% — not 93.6%.
Nominal pay gap
+93.6%
Illinois vs South Dakota
COL-adjusted gap
+71.6%
After BEA Regional Price Parities
Illinois
Plumbers, Pipefitters, and Steamfitters
- Median
- $99,950
- p25
- $72,070
- p75
- $120,050
- p10
- $50,250
- p90
- $126,430
- COL index (BEA RPP)100 = US average
- 100.0
South Dakota
Plumbers, Pipefitters, and Steamfitters
- Median
- $51,620
- p25
- $46,140
- p75
- $62,050
- p10
- $39,230
- p90
- $74,480
- 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.