Highest salary at Winfield Sd 34 in year 2018 was $160,000. Number of employees at Winfield Sd 34 in year 2018 was 70. Average annual salary was $44,764 and median salary was $47,995. Winfield Sd 34 average salary is 4 percent lower than USA average and median salary is 10 percent higher than USA median salary. From 2017 to 2018, the average salary of employees at this employer increased 42.9 percent.