Texas Constitution Article 3, Section 6

QUALIFICATIONS OF SENATORS. No person shall be a Senator, unless he be a citizen of the United States, and, at the time of his election a qualified voter of this State, and shall have been a resident of this State five years next preceding his election, and the last year thereof a resident of the district for which he shall be chosen, and shall have attained the age of twenty-six years. (Feb. 15, 1876. Amended Nov. 2, 1999.) (TEMPORARY TRANSITION PROVISIONS for Sec. 6: See Appendix, Note 1.)