State Senate State Legislative Office
Elections: 1857-present. State Senators were first elected to two-year terms except senators from odd-numbered districts elected in 1857 were elected to a one-year term for one cycle and two-year terms thereafter. Also, all state Senators were up for reelection in the cycle following apportionment. Beginning in the 1880s through 1970, state Senate seats were on the general election ballot every four years. From the 1970s and thereafter, state Senate seats have been on the ballot in cycles ending in ‘0,’ ‘2,’ and ‘6.’ There were 37 state Senate seats across 26 districts at statehood which changed over the decades after various apportionments as follows: 21 seats (Apportionment of 1860), 22 seats (1866), 41 seats (1871), 47 seats (1881), 54 seats (1889), 63 seats (1897), and 67 seats (1913).