Major Arizona courts that kept records of genealogical value were established as follows:

1852-1863	New Mexico county, district, probate, and supreme courts were the functioning courts for the Arizona area.
1864-1912	District courts had countywide jurisdiction over records of chancery, criminal cases, and divorces. Naturalizations were handled until 1906 when the U.S. district court was given exclusive jurisdiction.
1912-pres.	Superior courts superseded the district and probate courts. Their jurisdiction is countywide and includes major civil cases, cases of law or equity involving property, criminal, probate, divorce, juvenile, naturalizations, and appellate functions for cases appealed from justice of the peace courts.
	Police or magistrate's courts have citywide concurrent jurisdiction with the justice courts over cases involving the violation of state laws committed within city limits.
	Justice courts have districtwide jurisdiction over misdemeanors and minor criminal cases.
	Supreme court serves as the statewide appellate court, with jurisdiction over cases involving more that one county.