Sorta. There are places that are almost completely on a grid, like Salt Lake City[0]. Even then, there is a dense downtown core, and sparser suburbs with more organic neighborhood streets further out (if not blocked by mountains), as opposed to random clusters dense roads that aren't anywhere near each other. Then there's Pittsburgh[1], whose topography prevents a large grid, and there are several colliding grids at different orientations, and the suburbs gave up.