The board of county commissioners shall establish, by resolution, the salary payable to the county treasurer, county auditor, and county register of deeds. The salary payable may not be less than the following schedule as based upon the most recent decennial federal census of population for counties:

County Population

Salary Schedule

Below 10,000

$33,825

10,00014,999

$34,543

15,00024,999

$35,952

25,00069,999

$39,479

70,000 and over

$42,561