It shall be the duty of the board of county commissioners to meet on the second Monday in January of each year, or within thirty (30) days thereafter, and organize by electing one of their number chairman for a term of one (1) year who shall preside at that meeting and at all other meetings during such year, if present; but in case of the chairman’s absence, a temporary chairman may be elected from the members present; and in case of the death or resignation of the chairman of the board, the board may, at any regular or special meeting after such vacancy, elect one of their number chairman to fill the vacancy.

The provisions of this section may be modified by the adoption of a charter for county government in any county which has established a charter commission pursuant to law.