Maryland Code, Education § 3-105

(a) Subsections (b), (c), and (d) of this section do not apply to a county if the number of members of the county board is regulated by other provisions of this title.

(b) If a county school system has an enrollment of less than 50,000 students, the county board shall have five members, except that:

(c) If a county school system has an enrollment of 50,000 students or more but less than 100,000 students, the county board shall have seven members.

(d) If a county school system has an enrollment of 100,000 students or more, the county board shall have nine members except as provided in § 3-901 of this title for Montgomery County and § 3-1002 of this title for Prince George's County.

(e) The Worcester County Board consists of seven voting members and one nonvoting student member from each public high school in the county.