Senate district four is composed of Cibola county precincts 4 through 8, 10 through 16, 26, 28 and 30; McKinley county precincts 1, 3, 4, 17 through 19, 22 through 26, 28, 36, 44 through 46, 48, 52 through 57, 64 and 65; and San Juan county precincts 8 through 12 and 133.