County Courts have exclusive jurisdiction over eminent domain proceedings and juvenile matters, among other things. In counties which have a County Court, a County Court judge also serves as the Youth Court judge.

County Courts share jurisdiction with Circuit and Chancery Courts in some civil matters. The jurisdictional limit of County Courts is up to $200,000. County Courts may also handle non-capital felony cases transferred from Circuit Court. County Court judges may issue search warrants, set bond and preside over preliminary hearings. County Courts have concurrent jurisdiction with Justice Courts in all matters, civil and criminal.

Mississippi has 22 County Courts and 30 County Court judges.