State comparison · 2025
Heating, Air Conditioning, and Refrigeration Mechanics salary: District of Columbia vs Illinois
Heating, Air Conditioning, and Refrigeration Mechanics in District of Columbia earn a median of $84,390. In Illinois, $77,410. After cost-of-living, the gap is 0.8% — not 9%.
Nominal pay gap
+9%
District of Columbia vs Illinois
COL-adjusted gap
-0.8%
After BEA Regional Price Parities
District of Columbia
Heating, Air Conditioning, and Refrigeration Mechanics
- Median
- $84,390
- p25
- $77,730
- p75
- $101,940
- p10
- $49,940
- p90
- $108,240
- COL index (BEA RPP)100 = US average
- 109.9
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.