Highest salary at Kay County in year 2021 was $60,395. Number of employees at Kay County in year 2021 was 143. Average annual salary was $31,673 and median salary was $36,200. Kay County average salary is 32 percent lower than USA average and median salary is 17 percent lower than USA median salary. From 2020 to 2021, the average salary of employees at this employer increased 5.8 percent, the median salary increased 8.1 percent.