Mechanical Engineer Salary: Washington, DC vs Seattle, WA
Side-by-side comparison of wages and local price levels for Mechanical Engineers in Washington, DC and Seattle, WA, based on BLS OEWS May 2025 wage data and BEA regional price parities for 2024.
1Which City Pays More?
Detailed Comparison
| Metric | Washington, DC | Seattle, WA | Diff |
|---|---|---|---|
| Median Annual Salary | $126,990▲ | $126,590 | +$400 |
| 25th Percentile | $100,800▲ | $98,940 | +$1,860 |
| 75th Percentile | $160,230▲ | $155,290 | +$4,940 |
| 90th Percentile | $195,190▲ | $172,490 | +$22,700 |
| Price Level (BEA 2024, US = 100) | 108.9 | 111.1 | -2.2 |
| Median at National-Average Prices | $116,629▲ | $113,909 | +$2,720 |
| Total Employment | 5,390 | 4,500 | +890 |
3Summary Analysis
On paper, Washington, DC pays $400 more (median: $126,990 vs $126,590). BEA's regional price parity is 108.9 in Washington, DC and 111.1 in Seattle, WA (United States = 100). At national-average prices the medians are $116,629 and $113,909, so Washington, DC comes out ahead once local prices are counted.
5Reading This Comparison
The $400 gap between the two medians is a gap in dollars, not in what those dollars buy. Dividing each median by its area's regional price parity restates it at national-average prices: $116,629 for Washington and $113,909 for Seattle, a difference of $2,720.
The price levels come from the U.S. Bureau of Economic Analysis, which describes them this way: “Regional price parities (RPPs) measure the differences in price levels across states and metropolitan areas for a given year and are expressed as a percentage of the overall national price level.” The figures used here are the all-items index for each whole metropolitan area (Washington-Arlington-Alexandria, DC-VA-MD-WV; Seattle-Tacoma-Bellevue, WA) and cover prices only, not taxes.
BLS estimates 5,390 Mechanical Engineer jobs in the Washington area and 4,500 in the Seattle area. For broader context, see our District of Columbia overview and the full Mechanical Engineer city ranking.
Frequently Asked Questions
Is Mechanical Engineer salary higher in Washington, DC or Seattle, WA?
Washington, DC has the higher median wage for Mechanical Engineers ($126,990 per year, against $126,590 in Seattle, WA; BLS OEWS May 2025). Restated at national-average prices using BEA regional price parities, the medians are $116,629 in Washington, DC and $113,909 in Seattle, WA.
How do prices compare between Washington, DC and Seattle, WA?
The U.S. Bureau of Economic Analysis puts the 2024 regional price parity at 108.9 for the Washington-Arlington-Alexandria, DC-VA-MD-WV metropolitan area and 111.1 for the Seattle-Tacoma-Bellevue, WA metropolitan area, where the United States is 100. That is 8.9% above the national level for Washington, DC and 11.1% above the national level for Seattle, WA.
Which city pays Mechanical Engineers more once local prices are counted?
Washington, DC: at national-average prices its median Mechanical Engineer wage is $116,629, against $113,909 for Seattle, WA. The adjustment divides each median by the area's BEA regional price parity and covers prices only, not taxes.