Engine and Other Machine Assemblers salary in St. Louis, MO-IL
Engine and Other Machine Assemblers in the St. Louis, MO-IL metro area earn a median of $51,920 a year ($24.96 an hour), based on BLS data for 120 workers.
Pay ranges from $42,240 for the lowest-paid 10% to $63,200 for the top 10%. That is 3% lower than the national median of $53,710. Pay here is 11% higher than the Missouri statewide median of $46,720. There are 0.09 engine and other machine assemblers per 1,000 jobs here — the job is less common than nationally (location quotient 0.41). The average (mean) salary is $52,820, above the median because a few high earners pull it up.
Pay range for engine and other machine assemblers in St. Louis, MO-IL
| Pay level | Yearly | Hourly |
|---|---|---|
| 10th percentile (entry level) | $42,240 | $20.31 |
| 25th percentile | $45,340 | $21.80 |
| Median | $51,920 | $24.96 |
| 75th percentile | $62,460 | $30.03 |
| 90th percentile (top earners) | $63,200 | $30.39 |
| Average (mean) | $52,820 | $25.39 |
Half of engine and other machine assemblers earn more than the median and half earn less. Percentiles show the spread: 10% earn less than the 10th percentile, and 10% earn more than the 90th.
Median paycheck, before taxes
| Pay period | Amount |
|---|---|
| Monthly | $4,326.67 |
| Semi-monthly (24 a year) | $2,163.33 |
| Biweekly (26 a year) | $1,996.92 |
| Weekly | $998.46 |
| Hourly | $24.96 |
Based on a full-time year of 2,080 hours. Convert any amount with the hourly to salary converter.
Engine and Other Machine Assemblers salary in other metro areas nearby
| Metro area | Median salary | Workers |
|---|---|---|
| Chicago-Naperville-Elgin, IL-IN | $49,630 | 540 |
| Springfield, MO | $48,830 | 140 |
| Columbia, MO | $46,500 | n/a |
| Kansas City, MO-KS | $45,060 | 60 |
Highest-paying states for engine and other machine assemblers
| State | Median salary |
|---|---|
| Ohio | $74,750 |
| Washington | $72,800 |
| New Hampshire | $70,150 |
| Oregon | $63,420 |
| Connecticut | $61,320 |
| Michigan | $60,950 |
| Minnesota | $58,820 |
| Arkansas | $54,620 |
| Idaho | $54,240 |
| Wisconsin | $54,240 |
See Engine and Other Machine Assemblers pay in every state or the Missouri statewide figures.
Related jobs in St. Louis, MO-IL
| Job | Median salary | Hourly |
|---|---|---|
| Miscellaneous Assemblers and Fabricators | $46,570 | $22.39 |
| Electrical, Electronic, and Electromechanical Assemblers, Except Coil Winders, Tapers, and Finishers | $44,020 | $21.16 |
| Aircraft Structure, Surfaces, Rigging, and Systems Assemblers | $58,600 | $28.17 |
| Structural Metal Fabricators and Fitters | $50,170 | $24.12 |
| Coil Winders, Tapers, and Finishers | $49,170 | $23.64 |
| Fiberglass Laminators and Fabricators | $58,230 | $28.00 |
| First-Line Supervisors of Production and Operating Workers | $75,210 | $36.16 |
| Machinist | $62,210 | $29.91 |
| Inspectors, Testers, Sorters, Samplers, and Weighers | $51,790 | $24.90 |
| Packaging and Filling Machine Operators and Tenders | $47,460 | $22.82 |
| Multiple Machine Tool Setters, Operators, and Tenders, Metal and Plastic | $62,090 | $29.85 |
| Production Workers, All Other | $40,900 | $19.66 |
| Welders, Cutters, Solderers, and Brazers | $51,640 | $24.83 |
| Helpers--Production Workers | $40,190 | $19.32 |
More: Production Occupations · all salaries in St. Louis, MO-IL
Source: U.S. Bureau of Labor Statistics, Occupational Employment and Wage Statistics, May 2025 estimates, occupation code 51-2031. Wages include base pay, tips, commissions and shift pay, but not overtime, bonuses or benefits, and exclude the self-employed.
Frequently asked questions
How much does a engine and other machine assemblers make in St. Louis, MO-IL?
The median salary for engine and other machine assemblers in the St. Louis, MO-IL metro area is $51,920 a year, or $24.96 an hour. Pay ranges from $42,240 for the lowest-paid 10% to $63,200 for the top 10%.
How much do the highest-paid engine and other machine assemblers make in St. Louis, MO-IL?
The top 10% of engine and other machine assemblers in the St. Louis, MO-IL metro area earn at least $63,200 a year. The top 25% earn $62,460 or more.
What is the starting pay for engine and other machine assemblers in St. Louis, MO-IL?
Entry-level pay (the 10th percentile) is about $42,240 a year, and a quarter of engine and other machine assemblers earn $45,340 or less.
How many engine and other machine assemblers work in St. Louis, MO-IL?
About 120 engine and other machine assemblers are employed in the St. Louis, MO-IL metro area, not counting the self-employed.