When Arizona was divided into congressional districts for the first time after the 1950 Census, the 2nd district comprised the entire state outside of the Phoenix area. Arizona gained a third district after the 1960 Census, and the 2nd was cut back to roughly the southern third of the state, stretching border-to-border from New Mexico to California. It ran along the entire length of the border with Mexico. By far the district’s largest city was Tucson. The next largest city was Yuma, in the far west. After a mid-decade redistricting in 1967, the district was pushed slightly to the north, picking up a portion of southern Phoenix. This configuration remained largely unchanged until the 1980 Census, when much of eastern Tucson was drawn into the new 5th district.