The Board of County Commissioners is the County's legislative authority. The Commissioners serve as the chief administrators for several important County operations and have some quasi-judicial duties as well.

The three County Commissioners are elected to four-year terms. The County is divided into three districts on the basis of population and, at the time of election, each Commissioner must live in and represent their district. The Commissioners are partisan and are nominated in a primary election embracing only their particular district. All voters in the County are given an opportunity in the general election to select the Commissioner who will ultimately serve.

Commission briefings are held every Monday at 9:00 a.m. and Regular Commissioner meetings are held every other Tuesday at 9:00 a.m. unless otherwise noted. A Chair is elected at the beginning of each year to preside over these meetings.