Highest salary at City of Rolla in year 2020 was $149,572. Number of employees at City of Rolla in year 2020 was 208. Average annual salary was $43,493 and median salary was $42,316. City of Rolla average salary is 7 percent lower than USA average and median salary is 3 percent lower than USA median salary. From 2019 to 2020, the average salary of employees at this employer increased 11.4 percent, the median salary increased 8.6 percent.