Civil Engineering Assistant salary at Orange County

The average civil engineering assistant salary at Orange County was $117,462 , which is 28 percent higher than the average salary for this job in California, and 28 percent higher than the national average for this job . Civil Engineering Assistant salaries at Orange County typically range from $73,745 to $147,029 (25th to 75th percentile). The highest reported civil engineering assistant salary was $159,380. There are 16 employees at Orange County with the job title civil engineering assistant.