The average guard salary at Port of Quincy was $3,087 , which is 1 percent higher than the average salary for this job in Washington, but 92 percent lower than the national average for this job . Guard salaries at Port of Quincy typically range from $2,250 to $3,510 (25th to 75th percentile). The highest reported guard salary was $6,480. There are 17 employees at Port of Quincy with the job title guard.