The Census Bureau revealed the data of its 2020 population count on Monday.

The findings revealed that there will be a recalculation of the number of seats in the U.S. House of Representatives apportioned to each state, which could upend the balance of power in Washington.

California, Illinois, Michigan, New York, Ohio, Pennsylvania and West Virginia will all lose a congressional seat. Colorado, Florida, Montana, North Carolina, Oregon and Florida will gain one seat, while Texas will add two. Some states have never lost congressional districts in their history, including California. However, due to the pandemic many residents fled.

Republicans maintained control of most state legislative chambers following the 2020 elections and the GOP has control of 27 out of 50 governorships, putting the party in a strong position to redraw legislative maps in a way that increases its odds of gaining seats during the 2022 congressional elections.

Texas, Florida and North Carolina could be where Republicans wield this power most effectively, given that the party has full control over the redistricting process in those jurisdictions. Republicans hold the governorships and majorities in both legislative chambers in Texas and Florida.

Democrats control the House of Representatives by a 218 to 212 margin, with 6 vacancies.

The Census Bureau found that the total population of the U.S. grew by 7.4% between 2010 and 2020, to 331,449, 281, the slowest pace of growth of any decade in history outside of 1930s, during the Great Depression.