I'm not from CA, but I'm thinking 5 miles cover fair bit of the town and probably surrounding towns, I know my home/school zone's 5 miles would include 3 different neighboring towns in all direction radius and would be a huge inconvenience to me if they don't provide bussing. So, I second pp advice on ensuring the new school zone or home zone provides bussing for free if you're still stuck with that school after exhausting all of your options to change schools.