http://factfinder.census.gov/servlet/MapItDrawServlet?geo_id=86000US48139&_bucket_id=50&tree_id=420&context=AdvSearch&_lang=en 48139 5-Digit ZCTA, 481 3-Digit ZCTA - Reference Map - American FactFinder] , U.S. Census Bureau, 2000 census E.F. Gay, a merchant from Ann Arbor, bought 30 acres here in 1835 and built a dam and sawmill.