The number of senators and representatives remained constant, at 19 and 35 respectively.

The Democrats increased their lead in both houses, winning 18 of the 19 senate seats, and winning a clean sweep of the house, 35–0.

The Legislature met for the regular session at the State Capitol in Phoenix on January 11, 1915; and adjourned on March 11.

[3]: 4 A special session was called by the governor, and met between April 23 – May 29, 1915.

[3]: 217  A second special session was invoked from June 1–28, 1915.