What is the typical speed limit in residential areas unless otherwise posted?

In most jurisdictions, the typical speed limit in residential areas is set at 25 mph unless otherwise posted. This speed limit is established to ensure the safety of pedestrians, children playing, and other residents who may be in close proximity to the road. Lower speed limits in residential areas help reduce the likelihood of accidents and provide drivers with adequate time to react to unexpected situations, such as a child running into the street or a parked car suddenly emerging.

In contrast, higher speed limits such as 35 mph or 45 mph are usually found on busier streets or highways, where the traffic conditions and road designs support faster speeds. A limit as low as 15 mph may apply in very specific situations, such as school zones during certain times, but it is not the standard residential speed limit. Thus, 25 mph reflects a balance between providing reasonable travel speeds and ensuring safety in an environment where pedestrians and cyclists may be present.