is a city in Washington County, Minnesota, United States. The population was 6,863 at the 2000 census.
Much of the area within the city limits is still farmland, so that the city has a very rural feel to it. However, the city density is likely to increase substantially over the next 15 years, due to a new city plan ordered following loss of a lawsuit against the Metropolitan Council, a regional planning authority.
Lake Elmo, just southwest of Stillwater, Minnesota, began with one farm in 1852 on the southwest corner of the intersection of what is now Manning Avenue and 30th Street, just southeast of downtown Lake Elmo and across the highway from the Lake Elmo Airport. The barn was built in 1875, restored in 1998 and still stands today, renovated as a house. The 1852 farmhouse was intentionally burned down in March 2007.