State comparison · 2025
Mechanical Engineers salary: District of Columbia vs Massachusetts
Mechanical Engineers in District of Columbia earn a median of $133,300. In Massachusetts, $119,300. After cost-of-living, the gap is 7.6% — not 11.7%.
Nominal pay gap
+11.7%
District of Columbia vs Massachusetts
COL-adjusted gap
+7.6%
After BEA Regional Price Parities
District of Columbia
Mechanical Engineers
- Median
- $133,300
- p25
- $107,300
- p75
- $166,360
- p10
- $86,820
- p90
- $195,190
- COL index (BEA RPP)100 = US average
- 109.9
- Hiring velocity (180d)
- -40%
Massachusetts
Mechanical Engineers
- Median
- $119,300
- p25
- $96,440
- p75
- $140,590
- p10
- $79,570
- p90
- $166,480
- COL index (BEA RPP)100 = US average
- 105.8
- Hiring velocity (180d)
- -57%
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.