The administrative division of Congress Poland changed several times. Immediately after its creation, 1815-1816, the Congress Kingdom of Poland was divided into departments, a relic from the times of the French-dominated Duchy of Warsaw. In 1816 the administrative divisions were reformed into the more traditionally Polish voivodeships, obwóds and powiats. In 1837, in the aftermath of the November Uprising earlier that decade, the administrative division was reformed once again, bringing Congress Poland closer to the structure of the Russian Empire, with the introduction of guberniyas (governorate, Polish spelling gubernia), gradually transforming Congress Poland into the "Vistulan Country". Over the next several decades, various smaller reforms were carried out, either changing the smaller administrative units or merging/splitting various guberniyas.
On January 16, 1816 the administrative division was reformed from the departments of the Duchy of Warsaw into the more traditionally Polish voivodeships, obwóds and powiats.
There were 8 voivodeships:
On 7 March 1837 the Congress Poland voivodeships were renamed as 8 guberniyas (governorates):
In 1842 powiats were renamed okręgs, and obwóds were renamed powiats.
In 1844 several governorates were merged with others, and some others renamed. 5 governorates remained: