Updating texas voter registration
your Texas driver's license number, if you provided it when you applied for voter registration; or 3. Or, you can call the voter registrar’s office in the county where you reside.
If you missed this deadline, you may return to your old precinct to vote, if you still live in the political subdivision holding the election.
Note: If you fill out a voter registration application online using the above link, you must print the completed application and send it to your county voter registrar’s office.
Your voter registration becomes effective 30 days after it is submitted (and accepted*) by the county voter registrar.
The county office will then put your name on the voter registration list, generate your voter certificate, and mail it to you.
Once received, be sure to read the information on the back of the certificate, sign by the X on the "front" of the card (the yellow area) and keep your voter card in a safe place.