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What does a Mechanical Engineers salary really buy you in District of Columbia?
District of Columbia is 16.6% pricier than the US averageData: BLS OEWS 2025 + BEA Regional Price Parities 2022 • Updated 2026-05-19
District of Columbia's Regional Price Parity (RPP) is 116.6, meaning prices are 16.6% higher the national average. A Mechanical Engineers earning $133,300 in District of Columbia has the equivalent purchasing power of $114,322 in an average-cost US state.
Every dollar goes further in low-cost states. Here is how each salary percentile compares after adjusting for District of Columbia's cost of living.
| Percentile | Nominal Salary | COL-Adjusted | Difference |
|---|---|---|---|
| 10th Percentile (P10) | $86,820 | $74,459 | $-12,360 |
| 25th Percentile (P25) | $107,300 | $92,024 | $-15,275 |
| Median (P50) | $133,300 | $114,322 | $-18,977 |
| 75th Percentile (P75) | $166,360 | $142,675 | $-23,684 |
| 90th Percentile (P90) | $195,190 | $167,401 | $-27,788 |
While $133,300 sounds high, District of Columbia's elevated cost of living erases 14% of that salary's purchasing power. Your real buying power is $114,322. Consider whether the higher pay offsets the higher costs.
District of Columbia's RPP of 116.6 puts it 16.6% above the national baseline cost of living. A Mechanical Engineers needs that premium in nominal pay just to maintain the same purchasing power as an average-cost state.
Adjusting $133,300 for District of Columbia's cost of living yields $114,322 — a 14.2% loss in real purchasing power. This magnitude usually reflects either a materially cheaper or materially pricier metro mix than the national average.
Ranked on COL-adjusted median pay for Mechanical Engineers, District of Columbia places #11 of 51 states — top quartile. Either nominal wages run high, cost of living runs low, or both.
Where does Mechanical Engineers salary stretch the furthest? Top 10 states ranked by COL-adjusted median salary.
District of Columbia ranks #11 out of 51 states for Mechanical Engineers after cost-of-living adjustment.
How much do you actually take home? See Mechanical Engineers take-home pay in District of Columbia after taxes →
A Mechanical Engineers in District of Columbia earns a median salary of $133,300 per year. After adjusting for District of Columbia's cost of living (RPP=116.6), the real purchasing power is $114,322 — a -14.2% difference.
District of Columbia's cost of living is 16.6% higher than the national average according to the BEA Regional Price Parities (2022). The RPP index for District of Columbia is 116.6 (US average = 100).
Regional Price Parities (RPPs) are price indexes published by the U.S. Bureau of Economic Analysis (BEA) that measure differences in price levels across states. They are expressed as a percentage of the national average (US = 100). Higher RPP means higher cost of living.
The adjusted salary is calculated as: Nominal Salary x (100 / RPP). For a Mechanical Engineers in District of Columbia: $133,300 x (100 / 116.6) = $114,322. This represents what the salary would be worth in a state with average living costs.
Partially — a Mechanical Engineers's nominal salary of $133,300 in District of Columbia has 14.2% less purchasing power due to higher living costs. The real value is $114,322. However, District of Columbia may offer better career opportunities, networking, and industry access.
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