And cost could play a role.
12284. Upon request of the elections official, state-owned buildings, parking lots, and other facilities shall be made available free of charge for use as polling places, except that the Department of General Services may exclude from use as polling places state facilities at which access to confidential materials cannot be reasonably safeguarded, which are inaccessible to the public, the use of which would disrupt state business, or which are otherwise impractical for use as polling places.
In the town where I grew up, the polling place was always at our little fire department with another precinct at the school a few miles away. The next town over from me votes at the fire department too.
My little town has two precincts for the township and they’re less than 100 yards apart.