The structure of California state government rests on three branches established by the state constitution: a two-chamber legislature that writes the laws, a plural executive of eight independently elected statewide officers who carry them out, and a three-tier judiciary that interprets them. Voters sit alongside those branches with the power to make law directly through initiatives, referendums, and recalls. The framework traces to the state’s first constitution in 1849, with a major 1879 revision that still forms the backbone of the system today.1California Secretary of State. Constitutions
The constitution is California’s supreme legal authority. It creates each branch, defines rights that in some areas go further than federal protections, and reserves specific powers to voters. Under federalism, the state keeps sovereignty over anything the U.S. Constitution does not assign exclusively to the federal government. Hundreds of amendments by the legislature and by ballot measure have made it one of the longest state constitutions in the country.
The Legislature
Article IV places the state’s lawmaking power in the California Legislature, made up of the State Assembly and the State Senate.2California Legislative Information. California Constitution Article IV – Legislative The Assembly has 80 members, each elected to a two-year term from a district of roughly 500,000 residents.3California State Assembly. Elected Officials The Senate has 40 members on four-year terms, with half the seats up every two years, so each senator represents close to one million people.4California State Senate. FAQs Under Proposition 28, approved in 2012, any legislator first elected after that measure took effect can serve a lifetime maximum of 12 years, in one chamber or split between both.
How a Bill Becomes Law
A standard bill needs a simple majority in each house: 41 votes in the Assembly and 21 in the Senate.5California Energy Commission. Overview of Legislative Process Urgency statutes, which take effect immediately rather than on January 1 of the following year, need a two-thirds supermajority in each house.6Justia Law. California Constitution Article IV Section 8 State tax increases also require two-thirds support, a restriction dating to Proposition 13 in 1978. A bill that clears both chambers goes to the Governor, who can sign it, let it become law without a signature, or veto it.
Vetoes and Overrides
A vetoed bill returns to the house where it started. The legislature can override, but only with two-thirds of the full membership in each house, a threshold rarely met. On appropriations, the Governor also has line-item authority: the power to reduce or eliminate individual spending items while signing the rest of the bill. The legislature can restore those specific items through the same two-thirds override process.7Justia Law. California Constitution Article IV Section 10
The Budget
The constitution requires a budget bill to clear both chambers by June 15 each year.8California Department of Finance. California’s Budget Process Since 2010, when voters approved Proposition 25, the budget passes on a simple majority. Any tax increase embedded in it still needs two-thirds support. Proposition 98, approved in 1988, adds another constraint: it sets a minimum annual funding guarantee for K–12 schools and community colleges, tied to a formula based on state revenue and enrollment. Suspending that guarantee for a single year takes a two-thirds vote of each house.
The Executive Branch
California’s executive is structured very differently from the federal government. Rather than one president picking a cabinet, voters independently elect eight statewide constitutional officers, each accountable directly to the public.9California Secretary of State. Constitutional Officers – California Roster All eight serve four-year terms with a two-term limit.10Justia Law. California Constitution Article V Section 2 This plural executive design fragments power across multiple offices, which creates accountability but also means these officials sometimes pursue competing priorities.
The Eight Statewide Officers
The Governor holds the supreme executive power, oversees state agencies, appoints judges, issues executive orders, and commands the state’s National Guard. The Lieutenant Governor serves as president of the Senate, casts tie-breaking votes there, and acts as governor whenever the Governor leaves the state or the office falls vacant.11Lieutenant Governor of California. About the Office of Lt. Governor
The six remaining officers each run a distinct area of state operations:
- The Attorney General is the state’s chief law officer, overseeing the Department of Justice and representing California in legal proceedings.
- The Secretary of State manages elections, maintains official state records, and registers businesses.
- The Controller is the chief fiscal officer, auditing state spending and disbursing state funds.
- The Treasurer manages the state’s investments, cash flow, and bond sales.
- The Insurance Commissioner regulates California’s insurance market, investigates fraud, and enforces consumer protections for policyholders.12California Department of Insurance. About the Commissioner
- The Superintendent of Public Instruction leads the state’s public education system. This is the only statewide constitutional office elected on a nonpartisan ballot, with no party affiliation shown next to the candidate’s name.
Agencies and the Cabinet
Beyond the elected officers, the Governor appoints the heads of major state agencies and departments who together form the Governor’s cabinet.13Governor of California. Governor’s Cabinet These agencies cover environmental protection, health and human services, natural resources, transportation, labor, corrections, and more. They do the daily work of state government. When an agency needs to create detailed rules to carry out a law, it follows a formal process overseen by the Office of Administrative Law that requires public notice, a comment period, and review before any regulation takes effect.14Office of Administrative Law. Rulemaking Process
The Judiciary
Article VI creates a three-tier court system: trial courts at the base, intermediate appellate courts in the middle, and the Supreme Court at the top.15California Legislative Information. California Constitution Article VI – Judicial Each tier has its own job, and judges reach the bench differently at each level.
Superior Courts
California has 58 superior courts, one per county. Civil disputes, criminal cases, family law matters, and small claims all begin here.16Judicial Branch of California. Superior Courts Judges serve six-year terms, elected on a nonpartisan county-wide ballot. In practice, many first reach the bench through gubernatorial appointment to fill a mid-term vacancy, then face voters at the next scheduled election.17Justia Law. California Constitution Article VI Section 16
Courts of Appeal
A party that believes the trial court made a legal error can appeal to one of six appellate districts, organized by geography.18California Courts Newsroom. Courts of Appeal Appellate justices do not retry cases or hear new testimony. They review the trial record to decide whether the law was applied correctly. The Governor appoints these justices, and the Commission on Judicial Appointments — the Chief Justice, the Attorney General, and the senior presiding justice of the relevant district — confirms them.19Judicial Branch of California. Commission on Judicial Appointments After appointment, they face yes-or-no retention elections and serve 12-year terms.20California Courts Newsroom. Judicial Selection
The Supreme Court
The California Supreme Court has one Chief Justice and six Associate Justices, appointed by the Governor and confirmed the same way as appellate justices.21Supreme Court of California. Justices of the Court The court chooses most of its cases, picking appeals where the law is unsettled or where appellate districts have reached conflicting results. Death penalty cases are the exception: they go directly from the trial court to the Supreme Court for automatic review.22California Courts Newsroom. Supreme Court of California Its decisions bind every lower court in the state.
Direct Democracy
Article II reserves three powers to voters that let them act without the legislature: the initiative, the referendum, and the recall.23California Legislative Information. California Constitution Article II
Initiatives
An initiative lets voters propose a new statute or a constitutional amendment and place it directly on the ballot. A statute requires signatures from registered voters equal to 5 percent of the total votes cast for governor at the last gubernatorial election. A constitutional amendment requires 8 percent.24Justia Law. California Constitution Article II Section 8 Collecting that many valid signatures costs real money, so most successful campaigns hire professional signature-gathering firms.25California Secretary of State. How to Qualify an Initiative
Referendums
A referendum lets voters block a law the legislature has already passed. Proponents need signatures equal to 5 percent of the last gubernatorial vote, and they have only 90 days from the date the Governor signs the bill.26California Secretary of State. Referendum If the petition qualifies, the law is suspended until voters decide its fate at the next statewide election. The 90-day window makes referendums much harder to qualify than initiatives, which is why they reach the ballot far less often.
Recalls
The recall lets voters remove an elected official before their term ends. The signature requirement depends on the office. For statewide officers like the Governor, proponents need signatures equal to 12 percent of the votes cast in the last election for that office, drawn from at least five counties. For state legislators, appellate justices, and superior court judges, the threshold is 20 percent. Proponents have 160 days to file their signed petitions with the Secretary of State.27Justia Law. California Constitution Article II Section 14 If enough valid signatures come in, a special recall election follows. California’s most prominent successful recall came in 2003, when voters removed Governor Gray Davis and replaced him with Arnold Schwarzenegger. A 2021 attempt to recall Governor Gavin Newsom failed.
Counties and Cities
Government structure continues below the state level. California has 58 counties that function as administrative arms of the state, delivering law enforcement, public health, property assessment, and elections. Of those, 43 operate under general law — state statutes set their organizational structure — while 15 have adopted charters that let them design their own governance. Every county is run by an elected five-member Board of Supervisors.
Cities have more independence than counties. A general law city follows the default rules the legislature sets, while a charter city adopts its own foundational document granting broader authority over municipal affairs such as government structure, election procedures, and employee pay. Roughly a quarter of California’s nearly 500 cities have charters, but because those tend to be the larger cities, they account for well over half the state’s population. The distinction matters: when a charter city’s rules conflict with state law on a “municipal affair,” the charter generally wins.