Though more Bexar County voters voted by mail in the May 7 election than had in the Mar. 1 primary, the preliminary mail ballot rejection rate of 3% was far lower than the 21.7% that left thousands of ballots uncounted two months earlier.

For the May 7 election, every mail ballot is sent out with an informational insert reminding the voter about a new, ID number requirement that tripped up many people in the March 1 Primary elections.