Highest salary at Frio County in year 2023 was $421,994. Number of employees at Frio County in year 2023 was 165. Average annual salary was $49,993 and median salary was $44,417. Frio County average salary is 7 percent higher than USA average and median salary is 2 percent higher than USA median salary. From 2022 to 2023, the average salary of employees at this employer increased 9.2 percent, the median salary increased 0.9 percent.