Below is a list of Cottage Grove WI zip codes. For your research we have also included Cottage Grove Area Code, Time Zone, UTC and the local Dane County FIPS Code. Each Cottage Grove Wisconsin zip code has a center Longitude / Latitude point (the Cottage Grove center is -89.199600219727 / 43.087001800537). For your convenience we have also indicated if that zip code in Cottage Grove observes Daylight Savings time.