Whether you pay in-state or out-of-state tuition at a tech school depends entirely on your residency status and the school's policies, not on the type of school. Just like any other college or university, tech schools (which can range from community colleges with tech programs to highly specialized private institutions) will charge out-of-state tuition to students who don't meet their requirements for in-state residency. Each school sets its own residency rules. These rules often involve factors like length of time lived in the state, where you pay taxes, and your intent to remain in the state.
In short: There's no universal answer. You must check the specific tuition policies of the tech school you're considering.