The average secretary salary at Petaluma was $84,207 , which is 11 percent lower than the average salary for this job in California, but 20 percent higher than the national average for this job . Secretary salaries at Petaluma typically range from $77,676 to $91,692 (25th to 75th percentile). The highest reported secretary salary was $92,112. There are 7 employees at Petaluma with the job title secretary.