The average sergeant salary at Avenal was $69,952 , which is 77 percent lower than the average salary for this job in California, and 50 percent lower than the national average for this job . Sergeant salaries at Avenal typically range from $39,408 to $90,771 (25th to 75th percentile). The highest reported sergeant salary was $120,139. There are 5 employees at Avenal with the job title sergeant.