is a Home Rule Municipality in Adams and Weld counties in the U.S. state of Colorado, and the county seat of Adams County. The United States Census Bureau estimates that the city population was 30,723 in 2007.
Brighton is located at (39.974184, -104.809926). Though it lies somewhat outside of the Denver-Aurora metropolitan area, it is often considered a suburb.
According to the United States Census Bureau, the city has a total area of 17.1 square miles (44.4 km²), of which, 17.1 square miles (44.2 km²) of it is land and 0.1 square miles (0.1 km²) of it (0.29%) is water.