Kauno regioninio valstybės archyvo Marijampolės filialas

The state archive of Marijampole county was established in 1944. After the administrative-territorial reform in 1950, the archive was named Marijampolė district state archive (from 1955 Kapsuks district state archive). December 20, 1956, the archive was moved to other premises. Some of the documents were damaged due to poor storage conditions. Since 1964, the state archives of the districts were liquidated and the Central State Archive of the LTSR with 10 branches was established. Among them was the Kapsukas branch. The branch started to control and collect funds from institutions, companies, and organizations of the Kapsukas, Šakiai, and Vilkaviškis districts. Due to the lack of space, documents from institutions were not accepted for state storage, some non-profile funds were even returned to the institutions, and a number of fonds were transferred to the Central State Archives. In the spring of 1990, the archive was moved to the current premises, where, in addition to other special-purpose premises, a reading room was also established. Since then, the location of the archive has not changed, only the name itself has changed:

From 1990-07-25 to 1993-05-28 -- Marijampole state archive; From 1993-05-28 to 1997-03-07 -- Marijampole District Archive From 03/07/1997 to 01/01/2017 -- Marijampole county archive. From 01/01/2017 -- Marijampolė branch of the Kaunas Regional State Archive

Preserves documents of the regional state, municipal and non-state institutions, enterprises, and individuals of the Marijampolė, Kazlų Rūda, Kalvarija municipalities, Vilkaviškis and Šakiai districts from 1945 until the present day. Archives are also involved in supervising records management of local public institutions.

The activities of the Archives have been arranged in accordance with the Lithuanian Constitution, European Union legislation, and additional laws that regulate the activities of the Archives as a public government office.

Preserves over 242,000 files which occupy 1,986 linear meters of shelving space. The stored documents form two large complexes:

The first are documents from the period of Soviet occupation - 1944-1989, a total of 592 fonds. These are executive committees, collective farms, architects, courts, notaries, educational institutions, etc. fonds.

The second - begins in 1990, after the restoration of Lithuanian Independence. The latter complex currently has 179 fonds. These are the fonds of municipalities, townships, agrarian reform services, Marijampole county, etc.

Holocaust related are records of the county State Notary and Taxation Offices in Marijampolė and Šakiai related to the restitution and inheritance of individual and communal Jewish property after World War II.