Circle Pines is a city located in Anoka County, Minnesota. As of the 2000 census, the city had a total population of 4,663.
According to the United States Census Bureau, the city has a total area of 5.1 km2 (2.0 mi2). 4.5 km2 (1.8 mi2) of it is land and 0.5 km2 (0.2 mi2) of it is water. The total area is 9.74% water.