State comparison · 2025
Heating, Air Conditioning, and Refrigeration Mechanics salary: Arizona vs Illinois
Heating, Air Conditioning, and Refrigeration Mechanics in Illinois earn a median of $77,410. In Arizona, $59,400. After cost-of-living, the gap is 23.8% — not 23.3%.
Nominal pay gap
-23.3%
Arizona vs Illinois
COL-adjusted gap
-23.8%
After BEA Regional Price Parities
Arizona
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $59,400
- p25
- $47,170
- p75
- $73,810
- p10
- $37,950
- p90
- $80,160
- COL index (BEA RPP)100 = US average
- 100.7
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
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.