The Statistical archives are located at the Library of Statistics and are open to anyone interested. The archives contain basic data of statistics and unpublished table data as paper printouts or microfiche cards. The material of the archives can be studied in the reading room of the Library of Statistics. Most of the material is in Finnish.
Full catalogue of the archives is available at the Library of Statistics.
The oldest document in the Statistical archives is a table of population and population changes in the Municipality of Mäntsälä from 1749.