In the process of apportionment 435 memberships of the US House of Representatives are divided between 50 American states.
Each state has the right for one member in the House of Representatives, the rest of the seats are distributed accordingly with the congressional district, which is a territorial division that has its boundary based in the number of the population registered by the Census.
A congressional district allows the area to elect one member, if the population changes in one area it may change the number of seats that congressional district can elect. So after the Census is completed the legislative seats are reapportioned. The number of seats can increase or be lowered.
