In the mid-20th century, California emerged as a cornerstone of Democratic Party political power. Each decade brought a population boom, and with it, a growing voice in Washington. Between 1950 and 1990, the state gained an average of six new seats in the U.S. House of Representatives per apportionment cycle, largely due to a wave of migration, economic growth and national influence.
But now, that era is ending. According to new projections, the state could lose as many as four seats in the 2030 apportionment — a stunning reversal that would mark the largest single-decade loss in its history.
The latest data from the Brennan Center for Justice, the National Democratic Redistricting Committee (NDRC), and the American Redistricting Project all forecast a significant decline in California’s representation. At the same time, red states like Texas and Florida are poised to gain up to four seats each — a shift that could bolster Republican power in Congress and further weaken California’s influence in federal policymaking.
At the heart of California’s historic slowdown is a substantial shift in demographics. High housing costs, pandemic-era shifts to remote work and the outmigration of working families and retirees have contributed to a population drop of more than 412,000 people between 2020 and 2023.