Most residential and business streets in Dearborn have a speed limit of 25mph. In more rural parts of town, you might find that the speed limit is closer to 35 or 40mph. When driving near a school, the limit is almost always 20mph. Some highways can have speed limits all the way up to 75mph, but along certain stretches of road, they can be anywhere from 55 to 65mph. Dearborn and its neighboring cities often have traffic cameras in busy intersections, so make sure to follow traffic laws in order to avoid receiving a fine. Search rental cars on KAYAK