Motions for a change of venue tend to be only granted if you were notified to appear at a court that is not the county seat court, and you claim you told the citing officer you wanted the county seat.
The county seat is where the business of the county is conducted.....find out what your county seat is in yoru county, and if is different than where you were told to appear, get Nolo Press' book "Fight Your Ticket" and there is a sample change of venue motion in it.