Category Archives: House

California Congressional Districts

By Jim Ellis — Tuesday, Jan. 7, 2025

Reapportionment

Back in October, the American Redistricting Project released a national reapportionment estimate for the upcoming 2030 census, predicting which states would gain and lose congressional seats based upon unfolding population patterns. This week, the Brennan Center released their own reapportionment data, revealing some differentiation with the ARP conclusions.

Obviously, with half a decade to go before a new Census is conducted, no projection can be considered completely accurate because the population growth patterns will undoubtedly change at least to a degree over the next five years. Still, both the similarities and differences between the two projections are interesting to observe.

The similarities are much greater in number. Both organizations see California losing a whopping four seats, dropping the delegation size from 52 seats to 48. If these projections prove true, it will be only the second time in history that the Golden State will have lost representation. The first downgrade occurred in the 2020 census with a reduction of one district.

On the plus side, both data projections suggest that Texas will gain another four seats on top of the two they added in 2020 for a grand total of 42.

The other states that both organizations agree will gain one new seat are Arizona, Idaho, North Carolina, and Utah. Each agrees that the following states will lose one seat: Minnesota, Oregon, Pennsylvania, and Rhode Island.

The Oregon situation is interesting, because it suggests the Beaver State is on a path to relinquish the new seat they gained in the 2020 census. It is virtually unheard of to see a small population state gain in one census cycle but lose in the next.

Under the national reapportionment formula, the small states must show extreme population gains in order to add new seats, but also must experience extreme inhabitant lag in order to lose any of their congressional districts when compared to what happens in the larger states. Thus, Oregon, with a base of five districts and showing such diametrically opposite growth patterns in consecutive census cycles is a situation that has not before occurred in the modern era.

There are several differences between the projections. Both organizations find Florida in position to be another big gainer, however, the ARP sees the Sunshine State adding three new districts, while the Brennan Center believes the number will be four. If the latter calculation holds, Florida will increase its US House delegation size from 28 seats to 32.

While ARP projects Georgia and Tennessee to gain one seat apiece, the Brennan Center sees both holding their current House delegation quantity. In terms of seat losses, ARP sees New York losing three seats, while the Brennan Center projects a net loss of two. ARP also finds Illinois losing two seats, but BC calculates the Land of Lincoln loss count at only one.

The other difference is the Brennan Center projecting a one-seat loss for Wisconsin while ARP believes the Badger State count will remain at the current eight district level.

The Brennan organization also tracked the population shifts by region beginning in the decade of the 1960s to show how much the country’s migration patterns have changed over the course of what would be 70 years if their 2030 figures prove correct.

In the 60s, three geographic regions dominated the nation’s share of inhabitants. The Midwest and Plains states housed 125 congressional districts, the South 124, and the Northeast 117. Following was the West with 52, while the Rocky Mountain State region held only 17.

The 2030 projection shows big gains for the mountains and South. The Rocky Mountain region is expected to more than double its number of congressional districts from their level in the 1960s, growing from 17 to 36 seats. The South would expand by a third to 164 congressional districts, thus becoming the most populous region in the country. The West would increase to 66 from the 52 districts it held in the 60s.

The Midwest would have the largest reduction, going from 125 seats to 88, while the Northeast would see a similar decline, arriving at 81 seats from the 117 CDs they held in the 1960s.

While the 2030 projections will certainly change before the next Census is conducted, the regional patterns will probably be close to the mark. Therefore, we will see the South and West continue to grow with the colder climates in the Midwest and Northeast again attracting fewer inhabitants.