Daugavpils Zonal State Archives is a territorial structural unit of the National Archives of Latvia, which ensures the accumulation, accounting, preservation and use of documents to be included in the National Documentary Heritage in Daugavpils, as well as Aglona, Dagda, Daugavpils, Ilukste, Kraslava, Livani, Preili, Riebini and Varkava counties.