State comparison · 2025
Heating, Air Conditioning, and Refrigeration Mechanics salary: Illinois vs Oklahoma
Heating, Air Conditioning, and Refrigeration Mechanics in Illinois earn a median of $77,410. In Oklahoma, $57,560. After cost-of-living, the gap is 18.1% — not 34.5%.
Nominal pay gap
+34.5%
Illinois vs Oklahoma
COL-adjusted gap
+18.1%
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
Oklahoma
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $57,560
- p25
- $44,190
- p75
- $72,110
- p10
- $36,050
- p90
- $79,660
- 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.