State comparison · 2025
Heating, Air Conditioning, and Refrigeration Mechanics salary: Illinois vs Montana
Heating, Air Conditioning, and Refrigeration Mechanics in Illinois earn a median of $77,410. In Montana, $60,850. After cost-of-living, the gap is 20.3% — not 27.2%.
Nominal pay gap
+27.2%
Illinois vs Montana
COL-adjusted gap
+20.3%
After BEA Regional Price Parities
Illinois
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $77,410
- p25
- $60,200
- p75
- $96,030
- p10
- $46,690
- p90
- $117,550
- COL index (BEA RPP)100 = US average
- 100.0
Montana
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $60,850
- p25
- $48,150
- p75
- $75,790
- p10
- $41,900
- p90
- $81,230
- COL index (BEA RPP)100 = US average
- 94.6
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.