Below is a list of Cottage Grove MN zip codes. For your research we have also included Cottage Grove Area Code, Time Zone, UTC and the local Washington County FIPS Code. Each Cottage Grove Minnesota zip code has a center Longitude / Latitude point (the Cottage Grove center is -92.930397033691 / 44.819301605225). For your convenience we have also indicated if that zip code in Cottage Grove observes Daylight Savings time.