The number of people living in the city kept growing quickly. In 1857 it had 11,273 people and in 1872 it had almost 20,000 people. New factories needed workers they came from all over the world. Because of that, the Polish-Jewish people was joined by people of many types of people that worshipped in the Russian Empire. Soon the city became the fourth biggest town in the Kingdom of Poland. After the January Uprising of 1863, a new a kind of government was made to join all of the Polish lands with Russia. In 1866 the gubernia of Augustów was named Suwałki Gubernia. However, the new Warsaw-Petersburg railroad passed by Suwałki and the town's growth ended.