Mid-level Mechanical Engineer salary in St. Louis, MO

Based on 24 certified H-1B filings at DOL wage level II in the St. Louis, MO-IL metro area, FY2025–FY2026. Includes St Louis, St. Charles, Washington, Edwardsville, Saint Louis.

Also listed as: Mechanical Design Engineer

Median salary$82,100
Middle 50%$80.2k–$90.4k
vs. all levels here−10%comparison median $91,000
Filings24FY2025–FY2026 · latest two fiscal years

Salary range

Box: middle 50% of filings. Whiskers: 10th–90th percentile. 99% of filings are between $79,518 and $116,023.
PercentileSalary
10th$79,518
25th$80,184
50th (median)$82,100
75th$90,390
90th$96,622

Salary by year

Median salary

$60k $80k $100k FY2020: median $77,022 (15 filings) FY2022: median $80,427 (12 filings) FY2023: median $80,469 (12 filings) FY2024: median $94,420 (13 filings) FY2025: median $82,100 (16 filings) FY20 FY21 FY22 FY23 FY24 FY25 FY26

Filings per year

FY2020: 15 filings FY20 FY2021: 9 filings FY21 FY2022: 12 filings FY22 FY2023: 12 filings FY23 FY2024: 13 filings FY24 FY2025: 16 filings FY25 FY2026: 8 filings FY26 16
Shaded: FY2025–FY2026, the years behind the figures above. Median shown for years with at least 10 filings. FY2026 covers Q1–Q3 only.
Show as table
Fiscal yearMedianP25P75Filings
FY2020$77,022$77,022$80,00015
FY2021–––9
FY2022$80,427$78,374$87,33612
FY2023$80,469$80,454$83,81312
FY2024$94,420$85,800$100,00013
FY2025$82,100$80,184$89,35016
FY2026–––8

Cost of living

St. Louis's median mid-level Mechanical Engineer salary of $82,100 is worth about $86,300 at national average prices.

Source: BEA Regional Price Parities, 2024 (U.S. = 100; St. Louis = 95.1).

Compared with all workers here

All Mechanical Engineers in the St. Louis, MO area earned a median of $100,340 in May 2025 (2,190 employed). The H-1B median here is $82,100, 18% lower.

Source: U.S. Bureau of Labor Statistics, OEWS metropolitan area estimates. BLS wages include some incentive pay; H-1B figures are base salary.

Employers filing at this level

EmployerMedianFilings
L&T Technology Servicestoo few5
Abbott Machinetoo few2
Carl Zeiss Meditectoo few2
Diode Dynamicstoo few2

Employers with at least 2 filings here. Median shown at 10+ filings.

By experience level

Wage levelMedianFilings
Entry-level · Level I too few 3
Mid-level · Level II $82,100 24
Senior · Level III $94,775 12
Expert · Level IV – 0

Median shown when a level has at least 10 filings.

Minimum H-1B salary by level

Wage levelPrevailing wage (most common)Median offered salaryFilings
Mid-level · Level II$80,184$82,10024
Senior · Level III$93,371$94,77512

The prevailing wage is the minimum an employer must pay for this job and area. Amounts vary by county within a metro and by wage source.