Below is a list of Winterthur DE zip codes. For your research we have also included Winterthur Area Code, Time Zone, UTC and the local New Castle County FIPS Code. Each Winterthur Delaware zip code has a center Longitude / Latitude point (the Winterthur center is -75.587699890137 / 39.803001403809). For your convenience we have also indicated if that zip code in Winterthur observes Daylight Savings time.