Maint Fld Supt Spec salary at United States Postal Service

The average maint fld supt spec salary at United States Postal Service was $117,217 , which is 3 percent lower than the average salary for this job in Federal, and 3 percent lower than the national average for this job . Maint Fld Supt Spec salaries at United States Postal Service typically range from $111,925 to $122,508 (25th to 75th percentile). The highest reported maint fld supt spec salary was $122,508. There are 2 employees at United States Postal Service with the job title maint fld supt spec.