Texas gained two congressional seats while seven states lost a seat following the 2020 census. In all, seven seats shifted between 13 states.
The Census Bureau made the official 2020 state population numbers public on April 26. With that release came reapportionment, which uses a formula to redistribute each state's share of the 435 House of Representative seats starting in the 2022 midterm election. That formula takes state population into account. The changes in apportionment will have a political effect, notably in the Electoral College, where states are allotted electoral votes based on the number of members in Congress.