CaliSplit

Can California actually split?

Short answer: yes — but the bar is extraordinarily high, and it's why every proposal to break up California has failed. Here's the constitutional process, every major attempt since 1859, and the questions people ask most.

The constitutional process

Creating a new state out of California is governed by the U.S. Constitution, Article IV, Section 3 (the “New States” clause):

“…no new State shall be formed or erected within the Jurisdiction of any other State… without the Consent of the Legislatures of the States concerned as well as of the Congress.”

In plain English, splitting California requires two separate approvals:

  1. The California Legislature must consent to give up the territory.
  2. The U.S. Congress must consent to admit the new state into the Union.

A statewide ballot measure, on its own, has no power to do this — which is why even popular campaigns stall. It has happened only three times in U.S. history: Kentucky split from Virginia (1792), Maine from Massachusetts (1820), and West Virginia from Virginia (1863). No new state has been carved from an existing one in over 160 years. On top of the legal hurdle, Congress is wary because each new state adds two U.S. senators and electoral votes — so any split instantly becomes a high-stakes partisan fight.

A timeline of California split attempts

  1. 1859

    The Pico Act

    State Senator Andrés Pico's bill to split off the southern counties as the “Territory of Colorado” passed the Legislature, was signed by the governor, and won southern voters — but never reached Congress as the Civil War loomed.

  2. 1941

    State of Jefferson

    Residents of northern California and southern Oregon declared a new state near Yreka, vowing to “secede every Thursday.” The movement collapsed days later when Pearl Harbor was attacked on December 7, 1941.

  3. 1965

    The Dolwig Resolution

    A plan to divide the state at the Tehachapi Mountains passed the State Senate 27–12 but died in the Assembly, largely over water rights.

  4. 1992

    The Statham Plan

    Assemblyman Stan Statham's three-way (North/Central/South) partition passed the Assembly but died in the Senate; a related advisory vote carried 27 of 31 counties with no legal effect.

  5. 2014

    Six Californias

    Tim Draper's plan to create six states failed to qualify: of ~1.14 million signatures submitted, only an estimated 752,685 were valid — short of the 807,615 required.

  6. 2018

    Cal 3 / Proposition 9

    Draper's three-state plan qualified for the ballot — then the California Supreme Court removed it in July 2018 and struck it permanently that September.

  7. 2025–26

    The “Two-State Solution” (AJR 23)

    Assembly GOP Leader James Gallagher proposed splitting 36 inland counties into a new state after the Prop 50 redistricting fight. Shasta, then Yuba and Sutter counties voted to endorse it through 2026 — but the resolution sits stalled in committee.

Frequently asked questions

Can California split into two states?

Legally yes, but only under a strict process. Article IV, Section 3 of the U.S. Constitution requires that both the California Legislature and the U.S. Congress consent before any new state is carved out of California. Because both approvals are so hard to win, no such split has ever succeeded.

What would it actually take to split California?

Two separate consents are required: the California Legislature must agree to give up the territory, and Congress must vote to admit the new state into the Union. A statewide ballot measure by itself has no legal power to do this, which is why even popular proposals have stalled.

How many times has California tried to split?

By multiple historical counts, Californians have proposed dividing or breaking away more than 200 times since statehood in 1850 — including the 1859 Pico Act, the 1941 State of Jefferson, a 1965 Senate-passed two-state plan, the 2014 Six Californias, and the 2018 Cal 3 / Proposition 9. None secured the required consents.

Has any U.S. state ever successfully split from another?

Yes, but it is extremely rare. Kentucky split from Virginia in 1792, Maine from Massachusetts in 1820, and West Virginia from Virginia in 1863 — each with the consenting legislature's approval and an act of Congress. No new state has been formed from an existing one since 1863.

What was the State of Jefferson?

A 1941 movement by residents of northern California and southern Oregon who felt ignored by their capitals and proposed a new 49th state. It collapsed after the Pearl Harbor attack, was revived in 2013 by Siskiyou County rancher Mark Baird, and about a dozen rural counties have since expressed interest — but no state was created.

Is “Calexit” the same as splitting California into more states?

No. Calexit and other such movements are interested in California becoming an independent country, not additional states. The “Calexit” name was used by the group Yes California from 2015 to 2017, when they disbanded.

There is a vibrant secessionist political party in California, the California National Party (https://votecnp.org), which advocates for greater autonomy for California, especially secession. That party, however, is focused on all counties and keeping the state whole, not breaking it into pieces.

Why is splitting California so hard if so many people want it?

Public support cannot bypass the two consents the Constitution demands. The Legislature has never agreed to surrender territory, and Congress is wary because a new state would add U.S. senators and electoral votes, shifting national power. Practical fights — like the water dispute that killed the 1965 plan — add more obstacles.

Curious how a split would actually stack up? Build a California split →

Sources

CaliSplit is a hypothetical, educational tool, not affiliated with any campaign, movement, or government. Editorial summaries above are drawn from the linked sources; please consult them for full detail.