Senate district eighteen is composed of Bernalillo county precincts 313 through 317, 365, 366, 368, 372, 373, 376, 380, 388, 396, 397, 412 through 417, 428, 449 through 454, 461 through 463, 465, 471, 475, 482 through 484, 495, 502, 507 through 509, 512, 514, 515, 517, 521 through 524, 528, 529, 538, 562, 563, 583, 663, 670, 675 through 677 and 679.