Md. Const. art. III, § 4
Each legislative district shall consist of adjoining territory, be compact in form, and of substantially equal population. Due regard shall be given to natural boundaries and the boundaries of political subdivisions.
Acts 1900, c. 432, ratified Nov. 5, 1901; Acts 1922, c. 20, ratified Nov. 7, 1922; Acts 1956, c. 99, ratified Nov. 6, 1956; Acts 1969, c. 785, ratified Nov. 3, 1970; Acts 1972, c. 363, ratified Nov. 7, 1972.