State comparison · 2025
Heating, Air Conditioning, and Refrigeration Mechanics salary: Illinois vs North Dakota
Heating, Air Conditioning, and Refrigeration Mechanics in Illinois earn a median of $77,410. In North Dakota, $74,490. After cost-of-living, the gap is 7.5% — not 3.9%.
Nominal pay gap
+3.9%
Illinois vs North Dakota
COL-adjusted gap
-7.5%
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
North Dakota
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $74,490
- p25
- $56,770
- p75
- $78,920
- p10
- $46,610
- p90
- $94,060
- COL index (BEA RPP)100 = US average
- 89.0
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.