The Florida Senate is the upper house of the Florida Legislature, the state legislature of the U.S. state of Florida, the Florida House of Representatives being the lower house. Article III, Section 1 of the Constitution of Florida, adopted in 1968, defines the role of the Legislature and how it is to be constituted. The Senate is composed of 40 members, each elected from a single-member district with a population of approximately 540,000 residents. The Senate Chamber is located in the State Capitol building.