Circuit courts are a type of trial court found in many states in the United States. They handle a variety of cases, including civil, criminal, and family law matters. Each circuit court typically serves a specific geographic area, known as a circuit, and is responsible for hearing cases that arise within that region. These courts often have the authority to hear appeals from lower courts, such as municipal courts or magistrate courts. Circuit courts play a crucial role in the judicial system, ensuring that legal disputes are resolved fairly and efficiently within their jurisdictions.