Assistant Plant Operator Salaries in California
How Much Does an Assistant Plant Operator Make in California?
Updated April 01, 2025
As of April 01, 2025,
the average annual pay of Assistant Plant Operator in California is $72,547.
While Salary.com is seeing that Assistant Plant Operator salary in CA can go up to $85,881
or down to $56,328, but most earn between $64,058 and $79,526.
Salary ranges can vary widely depending on many important factors,
including education, certifications, additional skills, and your experience levels.
With more online, real-time compensation data than any other website, Salary.com helps you determine your exact pay target.
Related Job Titles to Assistant Plant Operator
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Similar Job Salaries to Assistant Plant Operator by Company
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| Company | average base salary in (usd) | range |
|---|---|---|
|
High Sierra Brine Shrimp
Plant Operator
|
$66,301/yr
|
RANGE: $59,058 - $73,543
|
|
Daniels Health
Plant Operator
|
$103,764/yr
|
RANGE: $93,175 - $114,354
|
|
Robertson's Ready Mix
Plant operator
|
$58,949/yr
|
RANGE: $52,845 - $65,053
|
|
NRG Energy
Plant Operator
|
$58,371/yr
|
RANGE: $52,296 - $64,445
|
|
VSS International, Inc.
Plant Operator
|
$96,992/yr
|
RANGE: $87,094 - $106,891
|
|
Hunter
PLANT OPERATOR
|
$95,746/yr
|
RANGE: $84,633 - $106,859
|
|
City of Santa Rosa
Senior Wastewater Plant Operator
|
$71,551/yr
|
RANGE: $63,012 - $80,089
|
|
Air Products
Operations Technician / Plant Operator
|
$62,667/yr
|
RANGE: $56,383 - $68,951
|
|
OPAL Fuels Inc.
Plant Operator - Miramar
|
$102,664/yr
|
RANGE: $92,187 - $113,141
|
Top 10 Highest Paying Cities For Assistant Plant Operator Jobs in California
It is important to understand how location impacts your career prospects in the United States.
There are some cities where an Assistant Plant Operator can find a job easily with a greater salary paid then achieve a higher standard of living.
Below is the top cities list for Assistant Plant Operator job salaries in California.
Some cities can pay higher salaries for Assistant Plant Operator jobs, which can indicate that there is a large demand for Assistant Plant Operator positions in this city.
The following table shows top 10 cities where the Assistant Plant Operator salary is higher than other cities in California.
San Jose takes first place in this list, followed by Santa Clara, Fremont.
The Assistant Plant Operator salary is $82,959 in San Jose,
which is higher than the national average. There are 76 cities' Assistant Plant Operator salary higher than national average in California.
The average salary for an Assistant Plant Operator in California is $72,547,
but we found that the city with the highest salary for Assistant Plant Operator jobs is San Jose, CA, and it is higher than Santa Clara.
Assistant Plant Operator jobs in San Jose can have the opportunity to earn higher salaries than in other cities in California.
| CITY | ANNUAL SALARY | MONTHLY PAY | WEEKLY PAY | HOURLY WAGE |
| San Jose | $82,959 | $6,913 | $1,595 | $40 |
| Santa Clara | $82,959 | $6,913 | $1,595 | $40 |
| Fremont | $82,801 | $6,900 | $1,592 | $40 |
| San Francisco | $82,144 | $6,845 | $1,580 | $39 |
| Daly City | $82,144 | $6,845 | $1,580 | $39 |
| Berkeley | $80,322 | $6,693 | $1,545 | $39 |
| Oakland | $80,322 | $6,693 | $1,545 | $39 |
| Hayward | $80,190 | $6,683 | $1,542 | $39 |
| Antioch | $75,783 | $6,315 | $1,457 | $36 |
| Vallejo | $73,994 | $6,166 | $1,423 | $36 |
What Does an Assistant Plant Operator Do?
Convenience: Depending on numbers, we can deliver training at your own facility and offer an online learning option for the Pool Plant Operator Revalidation.
Updated November 30, 2021
Graduates are employed by utilities, industrial power facilities, refineries, manufacturers, and consulting firms as power plant operators, stationary engineers, field service technicians, instrumentation and controls technicians, and electrical maintenance technicians.
Updated December 19, 2021
One year of experience is based on full–time employment at a treatment plant or 1,000 hours of cumulative experience, over a minimum of twelve months, for part-time operators.
Updated December 09, 2021
If the treatment plant is classified as advanced, does the collection system operator need advanced certification.
Updated November 30, 2021
To support continuing education within the water industry. AWWA’s Water Equation matches funds raised at the section level to provide books, tuition, training, education and certification to operators at water and wastewater treatment plants.
Updated November 29, 2021
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Explore JobArchitectFrequently Asked Questions About an Assistant Plant Operator Salaries
What is the average of an Assistant Plant Operator in California?
The Assistant Plant Operator salary range is from $64,058 to $79,526, and the average Assistant Plant Operator salary is $72,547/year in California.
The Assistant Plant Operator's salary will change in different locations.
Which location pays the highest Assistant Plant Operator salary in the United States?
The Assistant Plant Operator salary in San Jose, CA is $82,959
which is the highest in the US.
What kinds of reasons will influence the Assistant Plant Operator's salary?
Besides the location, employees' education degree, related skills, and work experience also will influence the salary.
Try to improve your skills and experience to get a higher salary for the position of Assistant Plant Operator.
What is the growth rate of the Assistant Plant Operator's salary?
If you are thinking of becoming an Assistant Plant Operator or planning the next step in your career, find the detailed salary report of an Assistant Plant Operator.
