Salary guide, May 2025
Skilled Mechanical Assembler pay in St. Louis, MO-IL
Manufacturing Headhunters uses the published BLS OEWS figures below. They describe the mapped occupation and area, not an individual offer.
This is what we do all day: recruit manufacturing professionals.
The median annual wage for Engine and Other Machine Assemblers in St. Louis, MO-IL was $51,920 (U.S. Bureau of Labor Statistics, OEWS, May 2025). The middle half of workers earned between $45,340 and $62,460.
The St. Louis, MO-IL median is $1,790 below the national median of $53,710, both from BLS May 2025.
Broader occupation · SOC 51-2031 Engine and Other Machine Assemblers
Skilled Mechanical Assembler is shown within the broader published occupation. BLS does not separate this plant-specific title, seniority, shift, process or credential. Compare the duties with the SOC definition before using the range.
What should you know about st. Louis, MO-IL?
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $42,240 | $45,340 | $51,920 | $62,460 | $63,200 |
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $20.31 | $21.80 | $24.96 | $30.03 | $30.39 |
BLS estimated 120 workers employed in this occupation in St. Louis, MO-IL. Location quotient: 0.41.
What should you know about united States?
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $38,500 | $45,230 | $53,710 | $74,920 | $77,750 |
| 10th | 25th | Median | 75th | 90th |
|---|---|---|---|---|
| $18.51 | $21.75 | $25.82 | $36.02 | $37.38 |
What should you know about role pay against all occupations here?
The published Skilled Mechanical Assembler median is $51,920. The all-occupations median in St. Louis, MO-IL is $49,990. Ratio: 1.04 (role median divided by all-occupations median, same units, BLS May 2025). Location quotient 0.41 measures how concentrated this occupation's employment is here against the nation. It is not a wage index.
What should you know about earlier release?
BLS May 2024 has no published row for this occupation in St. Louis, MO-IL, so no release comparison is shown.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. SOC 51-2031 Engine and Other Machine Assemblers, St. Louis, MO-IL. Official occupation data · Official area tables. Released 2026-05-15.
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025. SOC 51-2031 Engine and Other Machine Assemblers, U.S.. Official occupation data · Official area tables. Released 2026-05-15.
What should you know about nearby areas?
| Area | Median | 25th to 75th |
|---|---|---|
| Columbia, MO | $46,500 | $42,230 to $46,500 |
| Springfield, MO | $48,830 | $48,830 to $49,920 |
All roles in St. Louis, MO-IL · National page · Skilled Mechanical Assembler ranked across metros