Automotive & Maintenance Saint Louis, MO Pop. 301,578

Diesel Mechanic Salary in Saint Louis, Missouri

The median diesel mechanic salary in Saint Louis, MO is $49,860 per year, which is 10% below the national median and 2.3% above the Missouri state average.

City Median
$49,860
vs State Avg
+$1,108
vs National
$-5,540
Cost of Living
90%

Diesel Mechanic Pay in Saint Louis: What to Expect (2026)

Saint Louis offers a median diesel mechanic salary of $49,860, which is $1,108 above the Missouri state average of $48,752. Compared to the national median of $55,400, Saint Louis pays below the national benchmark for this role.

Saint Louis's cost of living is 90% of the national average, meaning salary figures here closely reflect actual purchasing power. This makes direct comparisons to other cities straightforward.

The salary range for diesel mechanics in Saint Louis spans from $31,500 at the 10th percentile to $73,800 at the 90th percentile — a $42,300 spread. Entry-level professionals start around $33,300, while senior diesel mechanics with 8+ years of experience can earn up to $70,200. With a population of 301,578, Saint Louis is a mid-sized metro with a growing job market.

Diesel Mechanic Salary in Saint Louis by Experience

In Saint Louis, an entry-level diesel mechanic earns around $33,300, while experienced professionals earn up to $70,200 per year. The local cost of living index is 90% of the national average.

Entry Level (0-2 yrs)
$33,300
$-3,700 vs national
Mid Level (3-7 yrs)
$50,400
$-5,600 vs national
Senior Level (8+ yrs)
$70,200
$-7,800 vs national

Salary Percentiles in Saint Louis, MO

Percentile Saint Louis
10th Percentile $31,500
25th Percentile $38,700
Median (50th) $49,860
75th Percentile $62,100
90th Percentile $73,800

Diesel Mechanic Salary in Other Missouri Cities

Kansas City, MO
$50,968
Pop. 508,090
Columbia, MO
$48,752
Pop. 126,254
Independence, MO
$47,090
Pop. 123,011
Springfield, MO
$45,428
Pop. 169,176

How to Become a Diesel Mechanic in Saint Louis

Education

Most diesel mechanic positions require a high school diploma. Saint Louis and the surrounding Missouri area have institutions offering relevant programs.

Key Skills

Diesel EnginesHydraulic SystemsElectrical DiagnosticsPreventive MaintenanceCDL KnowledgeWelding

Job Outlook

Nationally, diesel mechanic employment is projected to grow 5% over the next decade (faster than average). Demand in Saint Louis may vary based on local industry and population growth.

Find Diesel Mechanic Jobs in Saint Louis

Browse open diesel mechanic positions in Saint Louis, MO:

Indeed → LinkedIn → ZipRecruiter → Glassdoor →

Frequently Asked Questions: Diesel Mechanic Salary in Saint Louis

How much does a Diesel Mechanic make in Saint Louis, MO? ▼
The median diesel mechanic salary in Saint Louis, Missouri is $49,860 per year, which is 10% below the national median of $55,400. Salaries range from $31,500 (10th percentile) to $73,800 (90th percentile).
How much does a Diesel Mechanic make per hour in Saint Louis? ▼
Based on the median annual salary of $49,860, a diesel mechanic in Saint Louis earns approximately $24 per hour assuming a standard 2,080-hour work year.
How does Saint Louis compare to the Missouri state average for diesel mechanic pay? ▼
Saint Louis's median diesel mechanic salary of $49,860 is 2.3% above the Missouri state average of $48,752. The local cost of living index is 90% of the national average.
What is the cost of living in Saint Louis, MO? ▼
Saint Louis has a cost of living index of 90% compared to the national average. This means a diesel mechanic salary of $49,860 in Saint Louis has more purchasing power than the same salary in an average-cost city.
What qualifications do I need to become a diesel mechanic in Saint Louis? ▼
Most diesel mechanic positions in Saint Louis require a high school diploma. Key skills include Diesel Engines, Hydraulic Systems, Electrical Diagnostics, Preventive Maintenance. The job market is projected to grow 5% nationally over the next decade.