Unless posted otherwise, what is the speed limit in a residential area?

In Ohio, the default speed limit in residential areas is 25 miles per hour unless otherwise posted. This speed limit is established to help ensure the safety of pedestrians, children playing, and cyclists, as residential neighborhoods typically have more interactions between vehicles and these vulnerable road users. Establishing a lower speed limit in these areas helps drivers react more effectively to unexpected situations, like children suddenly crossing the street or parked cars obstructing views. While higher speeds might be common on major thoroughfares, the reduced limit in residential zones emphasizes caution and mindfulness toward community safety.