Below is a list of Trempealeau County WI zip codes. For your research we have also included Trempealeau County Area Code, Time Zone, UTC and the local County FIPS Code. Each Trempealeau County Wisconsin zip code has a center Longitude / Latitude point (the Trempealeau County center is -91.359802246094 / 44.324901580811). For your convenience we have also indicated if that zip code in Trempealeau County observes Daylight Savings time.