| Texas State Senate District ID | 21 |
| Representative | Judith Zaffirini |
| Party Affiliation | Democrat |
| 78959 |
| 78953 |
| 78836 |
| 78834 |
| 78830 |
| 78827 |
| 78748 |
| 78747 |
| 78745 |
| 78744 |
| 78742 |
| 78741 |
| 78719 |
| 78704 |
| 78666 |
| 78662 |
| 78656 |
| 78655 |
| 78648 |
| 78644 |
| 78640 |
| 78638 |
| 78632 |
| 78617 |
| 78616 |
| 78612 |
| 78610 |
| 78591 |
| 78588 |
| 78584 |
| 78582 |
| 78564 |
| 78548 |
| 78547 |
| 78536 |
| 78384 |
| 78383 |
| 78376 |
| 78371 |
| 78369 |
| 78368 |
| 78361 |
| 78360 |
| 78357 |
| 78349 |
| 78344 |
| 78341 |
| 78332 |
| 78263 |
| 78223 |
| 78161 |
| 78160 |
| 78155 |
| 78151 |
| 78147 |
| 78144 |
| 78141 |
| 78140 |
| 78121 |
| 78119 |
| 78118 |
| 78117 |
| 78116 |
| 78114 |
| 78113 |
| 78112 |
| 78111 |
| 78102 |
| 78101 |
| 78076 |
| 78075 |
| 78072 |
| 78071 |
| 78067 |
| 78064 |
| 78060 |
| 78046 |
| 78045 |
| 78044 |
| 78043 |
| 78041 |
| 78040 |
| 78026 |
| 78022 |
| 78021 |
| 78019 |
| 78014 |
| 78011 |
| 78008 |
| 78007 |
| 78001 |