No matter what road you are driving on in California, the maximum speed limit is 65 mph; this includes highways. If you are driving in more residential neighborhoods, the typical speed limit is 25 mph. In more built-up areas such as those with stores and malls, you may be able to drive between speeds of 25 mph and 65 mph. Although it may not be noted, around schools the maximum speed is also 25 mph. Search car hire on KAYAK