I'm not familiar with that. Always then there is a life at stake. I'm not one to pay much on taxes but I do think everyone should be covered for that one. There is a big difference between material possessions and someone's life, perhaps that of a child. Ambulance and helicopter is covered for everyone.
Are school taxes voluntary in your county? What kind of county/local taxes do you pay, and what services do you "give up" compared to cities and larger counties?
I ask because I suspect that even in big cities the fire and police are a very small proportion of county/city costs with most taxes going to income redistribution/welfare programs (such as healthcare, education and social services). I also suspect that you are taxed for education, healthcare and other welfare programs and any countywide fire tax would be small.
I can see where confusion arises in this issue. Residents are forced to pay for education services they do not use (about 75% of local taxes), healthcare services they do not use, but, in this case. are not taxed for fire/police services they may use. It would be easy for someone to assume that "with all these taxes I pay I must be covered for fire and police protection."
I think we would be much better if we had pay-to-play for education, healthcare (at least for non emergency), and social services, but mandatory flat-fee charges (taxes) for police and fire. In that case our taxes would be hundreds of dollars per year not thousands!