The 59th Texas Legislature met from January 12, 1965, to May 31, 1965, and again in a special called session from February 14, 1966, to February 23, 1966. All members present during this session were elected in the 1964 general elections.
Regular session: January 12, 1965 – May 31, 1965
Called session: February 14, 1966 – February 23, 1966
| Affiliation | Members | Note | ||
|---|---|---|---|---|
| Democratic Party | 149 | |||
| Republican Party | 1 | |||
| Total | 150 | |||
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Dist. 31