Senatorial district 1 shall consist of all of Atchison county; and all of Brown county; and all of Doniphan county; and all of Jackson county; and the following voting districts in Jefferson county: (000010), (000030), (000060); and the following voting districts in Leavenworth county: (000010), (000040), (000060), (000070), (170010), (170020), (170030); and the following voting districts in Marshall county: (000010), (000020), (000030), (000040), (000050), (000060), (000070), (000080), (000090), (000140), (000210), (000220), (000240), (000250), (000260), (000280), (000290), (000300), (120020), (120030), (120040), (120050); and all of Nemaha county.