Lochbuie, CO. Sponsored Topics. Lochbuie is a Statutory Town located on the border of Adams and Weld counties in the U.S. state of Colorado. The population was 2,049 at the U.S. Census 2000. Lochbuie is located at 40Â°0â²36â³N 104Â°42â²29â³W / 40.01Â°N 104.70806Â°W / 40.01; -104.70806 (40.009864, -104.708080).