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Process engineer salary in St. Louis, MO, 2026

How much does a Process Engineer make in St. Louis, MO?

Average base salary

$99,623
same
as national average
Average $99,623
Low $75,203
High $131,971

The average salary for a process engineer is $99,623 per year in St. Louis, MO. 10 salaries taken from job postings on Indeed in the past 36 months (updated June 2, 2026).

Process Engineer job openings in St. Louis, MO

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Process Engineer
Air Products3.8out of 5 stars.
St. Louis, MO
Full-time
1 month ago

Highest paying companies for Process Engineer in St. Louis, MO

Average year pay is based on job postings on Indeed in the past 36 months.
c/o Pinnacle Health Group
 
$215,800per year
View company
Sirius Staffing
 
$201,760per year
View company
BEPC Inc
 
$188,958per year
View company
Denken Solutions Inc
 
$156,000per year
View company
Nestlé
 
$143,500per year
View company
Randstad
 
$124,800per year
View company

Highest paying cities for Process Engineers near St. Louis, MO

  1. Jefferson City, MO
    $110,293 per year
  2. Saint Joseph, MO
    $107,652 per year
  3. Clayton, MO
    $96,224 per year
  4. St. Louis, MO
    $92,439 per year
  5. Belton, MO
    $91,953 per year

Where can a Process Engineer earn more?

Compare salaries for Process Engineers in different locations
vs

How much do similar professions as Process Engineer get paid in St. Louis, MO?

Junior Process Engineer

Job openings
Average $54,774 per year

Senior Process Engineer

Job openings
Average $102,136 per year