State comparison · 2025
Mechanical Engineers salary: District of Columbia vs Washington
Mechanical Engineers in District of Columbia earn a median of $133,300. In Washington, $110,430. After cost-of-living, the gap is 17.5% — not 20.7%.
Nominal pay gap
+20.7%
District of Columbia vs Washington
COL-adjusted gap
+17.5%
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%
Washington
Mechanical Engineers
- Median
- $110,430
- p25
- $94,560
- p75
- $139,870
- p10
- $79,400
- p90
- $167,680
- COL index (BEA RPP)100 = US average
- 107.0
- Hiring velocity (180d)
- -50%
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.