However, the State of Texas has uniform election dates in January, May, August and November. There may be runoff elections for those dates and additional elections when it is necessary to fill an unexpired term of an elected official - which may also have a runoff. Generally, when there is just one election, the political subdivision will decide where it wants the polling sites to be. In Bexar County, the County Clerk Elections Office usually selects the sites for a given election. This is because other entities contract with the County for their elections and ask the County to do so in order to use essentially the same sites as the County does for their elections.
Entities holding elections, however, often indicate where they want the polling places to be.
This is often true with elections for school boards or school bonds. This process becomes more complicated when there are combinations of elections, or joint elections on the same date. But, it is not always possible to do that because of population growth, precinct splits, construction on a former polling site, political party requests, or neighborhood association preferences, and other reasons. In 1999, some voters in Bexar County had an opportunity to vote in six elections, each election called by a different political subdivision. Since each subdivision can determine its own sites, you can see how easily it is to change sites requiring voters to vote in different places.