Historical Societies: Orange County: Provides information, contacts and links.
National Register of Historical Places - Orange County: Provides a listing of properties, districts, lodgings and landmarks in the county. Includes architectural style and period of historical significance.
Orange County QuickFacts from the US Census Bureau: Table of statistics with county comparison to state numbers.
Political Graveyard: Orange County, Vermont: Site contains information on the political history, cemeteries and memorial sites in the county.