Highest City of Columbia employee salary in year 2018 was $102,939. City of Columbia employees number in year 2018 was 16. City of Columbia average salary was $38,394 and median salary was $36,539. According to the last payroll, City of Columbia average salary is 49 percent lower than USA average and 42 percent lower than Oregon state average. City of Columbia employee salaries are usually between $13,143 and $52,593. Top 10% of highest-earning employees have salaries ranging from $83,138 to $102,939.