Police or Sheriff's Patrol Officer Salary. (United States). The average salary for a Police or Sheriff's Patrol Officer is $44,913 per year. Experience has a moderate effect on pay for this job.Most people with this job move on to other positions after 20 years in this career.$29,591 - $76,611.olice or Sheriff's Patrol Officer Salary. (United States). The average salary for a Police or Sheriff's Patrol Officer is $44,913 per year. Experience has a moderate effect on pay for this job.