Various Delaware courts kept records of genealogical value. Below is a list of the courts with the approximate dates they existed.

1655-1682	Delaware was under Dutch control from 1655 to 1664 and then under New York from 1664 to 1682. These court records have been published in volume 12 of Documents Relating to the Colonial History of the State of New York, (Albany, N.Y.: The Argus Co., 1877. FHL book 974.7 H2d; vol. 12 is on film 824389 item 2; computer number 152213). The index is at the end of vol. 13 (FHL film 824390).
	The records for 1648-1682 have been published in: Gehring, Charles T. Delaware Papers. 2 vols. Baltimore, MD: Genealogical Publishing Co., 1977-1981. (FHL book 974.7 N2d; computer number 152202.) Vol. 1 has records 1664-1682; vol. 2 has records for 1648-1664.
1670's	Magistrates Courts were held by the King's authority.
1701-1831	Courts of Common Pleas were established in each county to hear minor civil suits, minor criminal cases, appeals from lesser courts, adoptions, and terminations of parental rights. Their powers were given to the superior court in 1831. Before 1792, the courts of common pleas also handled those matters now handled by the chancery courts.
1655-pres.	Levy Court. This court is a county administrative unit that keeps records of schools, petitions, tavern licenses, road accounts, probates, and taxes.
1683-pres.	Orphans' Courts have countywide jurisdiction over property rights, estates of minors, guardianships, and adoptions.
1792-pres.	Chancery Courts are countywide courts with jurisdiction over equity matters, where sufficient remedy cannot be had by common law or statute before any other court.
1676-pres.	Court of General Quarter Sessions. These records include apprenticeship indentures and petitions for roads and taverns. This court tries all criminal cases except capital crimes.
1746-pres.	Court of Oyer and Terminer. This criminal court often hears capital crimes.
1664-pres.	Justice of the Peace. These records include minor civil cases.
1794-1898	High Court of Errors and Appeals. This was an appeals court for the superior courts.
1790-pres.	U.S. Circuit and District Courts. They handle naturalizations, civil cases, and criminal cases.
1726-1831;1908-pres.	Supreme Court. The duties were transferred to the superior courts after 1831. All court records (except those from the last three years are at the Delaware Public Archives
1831-pres.	Superior Courts replaced courts of common pleas. They are county courts with jurisdiction over major criminal and civil cases. Naturalization records are included.