Oakdale is a city located in Washington County, Minnesota. As of the 2000 census, the city had a total population of 26,653.
According to the United States Census Bureau, the city has a total area of 29.2 km2 (11.3 mi2). 28.7 km2 (11.1 mi2) of it is land and 0.5 km2 (0.2 mi2) of it is water. The total area is 1.86% water.