The United States district courts are the trial courts of the federal court system. Within limits set by Congress and the Constitution, the district courts have jurisdiction to hear nearly all categories of federal cases, including both civil and criminal matters.
There are 94 federal judicial districts, including at least one district in each state, the District of Columbia and Puerto Rico. Three territories of the United States -- the Virgin Islands, Guam, and the Northern Mariana Islands -- have district courts that hear federal cases, including bankruptcy cases. Website: www.uscourts.gov/districtcourts.html