You could call, but who wants to sit on hold? Many (most?) local governments provide residential property information online, which generally includes the school district for a given address. In our area, the information is available through county auditor websites. We definitely use those sites on all investment prospects to verify school districts, but also a host of other information, such as size of the home, taxes, etc. Take a look at this article: http://www.twowiseacres.com/2007/10/23/capitalization-rate-a-not-quite-as-quick-but-a-little-more-accurate-comparison-of-rei/ that contains a reference to a good public records portal that should get you to the information you need.