Diesel Mechanic Salary in Denver, CO: 2026
Diesel Mechanic salary data for Denver, CO, adjusted for local cost of living. Entry-level to senior pay ranges, take-home pay calculator, and local job market insights.
The median Diesel Mechanic salary in Denver, CO is $72,800 per year ($6,067/month, $35.00/hr). That is the BLS OEWS May 2025 median annual wage for Bus and Truck Mechanics and Diesel Engine Specialists in the Denver-Aurora-Centennial, CO metropolitan area, which covers Denver. Salario's cost-of-living model (index 118) would have estimated $72,889; the entry, senior and top tiers below are Salario estimates rescaled to the BLS median.
Median: BLS OEWS May 2025, Bus and Truck Mechanics and Diesel Engine Specialists (SOC 49-3031), Denver-Aurora-Centennial, CO MSA, $35.00/hr median. Entry, senior and top earner are Salario estimates rescaled to the BLS median.
Diesel Mechanic Take-Home Pay in Denver
Tax Breakdown (Median Salary)
| Gross Annual | $72,800 |
| Federal Tax | -$7,186 |
| State Tax (3.4% eff.) | -$2,495 |
| FICA (SS + Medicare) | -$5,569 |
| Annual Take-Home | $57,550 |
| Monthly Take-Home | $4,796 |
Living Cost Comparison
Diesel Mechanic Requirements
Key Skills
Denver Job Market Overview
Denver, Colorado has a population of 715,522 and an unemployment rate of 3.0%. The top industries are Technology, Energy, Healthcare. The local job growth rate is 2.5%, and the average commute time is 27minutes. These local figures come from Salario's city dataset; verify current values with BLS Local Area Unemployment Statistics and Census QuickFacts.
Related Trades Salaries in Denver
Diesel Mechanic Salary in Nearby Colorado Cities
Salary Percentile Breakdown: Diesel Mechanic in Denver
Based on Salario's cost-of-living-adjusted salary tiers for Diesel Mechanic in Denver, CO, here is an estimated percentile breakdown:
| Percentile | Annual Salary | Hourly Equivalent | Career Stage |
|---|---|---|---|
| 10th (lowest) | $46,800 | $23/hr | Entry-level, < 1 yr exp. |
| 25th | $59,800 | $29/hr | Junior, 1-3 yrs exp. |
| 50th (median) | $72,800 | $35/hr | Mid-career, 1-3 years |
| 75th | $97,500 | $47/hr | Senior, 5-10 yrs exp. |
| 90th (top) | $118,300 | $57/hr | Lead/Principal, 10+ yrs |
P50 is the measured BLS OEWS May 2025 metro median; P10, P25, P75 and P90 are approximations, not measured local percentiles: they map to Salario's entry, senior and top tiers rescaled to the BLS median, with P25 interpolated halfway between entry and median. Top earners (P90) typically include managers, specialists with rare skills, or those at high-paying employers in Denver's Technology sector.
5-Year Salary Trajectory
Salario's national dataset models approximately 12.0% salary growth for Diesel Mechanics over the past 5 years. That national assumption is applied to the Denver estimate below; it is not a measured local trend, and it should be compared with cumulative CPI inflation before treating it as a real-terms gain:
Year-over-year, an average Diesel Mechanic can expect a 15.8% annual increase moving from entry to senior level over 5 years in Denver. Negotiation, certifications (ASE Diesel Certification, CDL), and changing employers strategically can accelerate this trajectory.
Denver vs National Average
The national median Diesel Mechanic salary is $61,770 (BLS OEWS May 2025, Bus and Truck Mechanics and Diesel Engine Specialists). In the Denver-Aurora-Centennial, CO metro, the BLS median of $72,800 is 17.9% above the national figure. Denver's cost of living index is 118 (higher than the national average of 100), so the wage premium and the cost premium do not necessarily cancel out.
For Diesel Mechanics, this means: rent typically consumes 38.6% of take-home pay (households spending >30% are considered rent-burdened), and a median home in Denver costs about 9.6× annual take-home. Homeownership in Denver on this salary is challenging, most experts recommend keeping home costs to 3-4× income.
Industry Context: Technology in Denver
Denver's economy is anchored by Technology, Energy, Healthcare, with 715,522 residents and an unemployment rate of 3.0% in Salario's city dataset. Pay for Diesel Mechanics can differ by sector, so compare Technology employers with other local employers. The local job growth rate in Salario's city dataset is 2.5%, and Salario's job dataset lists a 5.0% growth outlook for Diesel Mechanic roles; check the BLS Occupational Outlook Handbook for the official 2024-2034 projection for the closest matching occupation.
Methodology & Data Sources
How we calculate Diesel Mechanic salaries in Denver, CO:
- Local median is the BLS OEWS May 2025 median annual wage for Bus and Truck Mechanics and Diesel Engine Specialists (SOC 49-3031) in the Denver-Aurora-Centennial, CO metropolitan statistical area, retrieved from the BLS Public Data API on September 17, 2026. BLS reports by metro area, so this is a regional figure, not a Denver-only wage.
- Cost-of-living adjustment is shown only for comparison ($72,889 modeled) using the Denver index of 118 relative to the national baseline of 100, with local rent, home price, unemployment, and tax inputs stored separately in Salario's city dataset.
- Percentile distribution (P10-P90) estimated from the entry, median, senior, and top compensation tiers in the Salario salary model rescaled to the BLS metro median rather than claimed as exact employer payroll data.
- Take-home pay calculated using 2026 federal tax brackets (10%-37%), CO 2026 state income tax brackets after the standard deduction (top rate 4.4%), and FICA (Social Security 6.2% + Medicare 1.45%).
- Tax brackets and standard deduction ($16,100 single filer for tax year 2026) sourced from IRS Revenue Procedure 2025-32 and updated annually.
Authoritative data sources:
- BLS Occupational Employment and Wage Statistics, national and metro-area salary data
- O*NET OnLine, occupation tasks, alternate job titles, skills, and SOC crosswalks
- BLS Occupational Outlook Handbook, occupation outlook where a matching profile is available
- BLS Consumer Price Index (CPI-U), regional inflation data (CPI measures price changes, not city-to-city price levels)
- U.S. Census Bureau, Denver QuickFacts, population and demographic data
- IRS Revenue Procedure 2025-32 summary, 2026 federal tax brackets and standard deductions
- BLS Local Area Unemployment Statistics, official local unemployment rates to verify the Denver figure above
Last reviewed: 2026. Salario's salary dataset is refreshed periodically, not automatically; check the linked BLS releases for the latest official data. Diesel Mechanic salaries can vary significantly based on employer, sector (Technology vs others in Denver), specific skill set (Diesel Engines, Hydraulics, Electrical Systems), and individual negotiation. Always verify current compensation through multiple sources before making career decisions.
Frequently Asked Questions
What is the average Diesel Mechanic salary in Denver, CO?
How much does a Diesel Mechanic take home in Denver after taxes?
Is Denver a good city for Diesel Mechanics?
What skills are needed for a Diesel Mechanic in Denver?
How does Diesel Mechanic salary in Denver compare to the national average?
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Frequently Asked Questions
What is the average Diesel Mechanic salary in Denver, CO?
The median Diesel Mechanic salary in Denver, CO is $72,800 per year ($35.00/hr): the BLS OEWS May 2025 median annual wage for Bus and Truck Mechanics and Diesel Engine Specialists (SOC 49-3031) in the Denver-Aurora-Centennial, CO metropolitan area. BLS publishes wages by metro area, not by city. The entry-level estimate of around $46,800 and the senior estimate of $97,500 or more are Salario tiers calibrated to that BLS median, not BLS percentiles.
How much does a Diesel Mechanic take home in Denver after taxes?
A Diesel Mechanic earning the median salary of $72,800 in Denver, CO takes home approximately $57,550 per year ($4,796/month) after federal, state, and local taxes. The effective tax rate is 20.9%.
Is Denver a good city for Diesel Mechanics?
Denver, CO has a cost of living index of 118 (above national average). Diesel Mechanics here earn above the city median. The local unemployment rate is 3.0% and top industries include Technology, Energy, Healthcare.
What skills are needed for a Diesel Mechanic in Denver?
Key skills for Diesel Mechanics include Diesel Engines, Hydraulics, Electrical Systems, Diagnostics, Preventive Maintenance. Typical education requirement is Trade School Certificate. Valuable certifications include ASE Diesel Certification, CDL.
How does Diesel Mechanic salary in Denver compare to the national average?
The national median for Bus and Truck Mechanics and Diesel Engine Specialists is $61,770 (BLS OEWS May 2025). In the Denver-Aurora-Centennial, CO metro, the BLS median is $72,800, which is 17.9% higher than the national figure. For comparison, Salario's cost-of-living model (index 118) would have estimated $72,889.