There are lists of military schools sorted by state at MilitarySchoolUSA.com and AMCSUS.com. The AMCSUS.com website is for the Association of Military Colleges & Schools of the United States.
The front page of MilitarySchoolsUSA.com provides an interactive map with markers for each military school and college in the country. Either click on one of the markets or select a state from the list. This gives all schools in that state. The list is also accessed by clicking on Schools at the top of the page.
The AMCSUS.com website provides a directory of military schools and colleges similar to MilitarySchoolsUSA.com. It also has a search tool that allows the user to enter a type of school, age range and state.