what is the speed limit in a residential area

In the United States, speed limits vary depending on jurisdiction. In urban areas, speed limits typically range from 25 mph on residential streets and central business districts to 30-40 mph on arterial roadways. However, the speed limit in a residential area can be different depending on the state. For example, in New Jersey, the speed limit in residential districts is 25 mph unless otherwise posted. In New York, the de facto residential speed limit is 30 mph. In some areas, communities can apply for a Neighborhood Slow Zone program that reduces the speed limit from 25 mph to 20 mph. It is important to note that speed limits can be lower in school zones, at hazardous intersections, on unpaved roads, etc. .