Consistent with the North Texas region, Garland's topography is largely flat to gently rolling. Elevations generally range between 500 and 600 feet above sea level.
The terrain is punctuated by slight depressions and flood plains carved by the local creek systems. Duck Creek, running diagonally through the heart of the city, creates a modest riparian corridor. The eastern boundary of the city slopes downward toward the shores of Lake Ray Hubbard, marking the lowest points in the local topography. There are no significant hills, mountains, or canyons within the city limits.