Orange County, California
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50 free Orange County, California trivia questions with answers — geography quiz, new questions added Oct 2026.
Orange County fits more than three million people and 34 cities into the smallest county in Southern California, yet most visitors can name only the city with the famous theme park. Which city is really the biggest? Which one is the county seat, and which has fewer than six thousand residents? This quiz ranks Orange County's cities by population using 2020 census figures, from the largest down to the smallest, then widens out: the coastline and its surf towns, the Spanish mission and its returning birds, the theme parks that grew out of farmland, the pro teams, the bands and brands that started here, and the scandals and court cases that made national news. It is written for locals settling an argument, newcomers learning the map, and anyone building a pub quiz or classroom round on Southern California. Every answer comes with a short explanation, so you leave knowing why each city ranks where it does.
30 of 50 questions with answers and explanations. Play the quiz
Q 01Which birds are famed for returning from Argentina to Mission San Juan Capistrano around Saint Joseph's Day?
Cliff swallows
Cliff swallows fly about 6,000 miles from Goya, Argentina, to nest under the mission's eaves and arches. When the colony dwindled, the mission tried to lure the birds back with recorded swallow calls and man-made nests.
Q 02Which city, home to Orange County's major league baseball and hockey teams, was its most populous at the 2020 census?
Anaheim
Anaheim counted 346,824 residents in 2020, the tenth-highest total of any California city. It was founded in 1857 by fifty German families.
Q 03Which hybrid berry did farmer Walter Knott bring to market at the Buena Park roadside stand that became a theme park?
Boysenberry
Boysenberry vines lay frail in a weed-choked field when Knott rescued them from the old farm of their breeder, Rudolph Boysen. He nursed them back to health and built his products around the fruit.
Q 04Which city has been the seat of Orange County's government ever since the county was created in 1889?
Santa Ana
Santa Ana won the seat in a July 1889 vote, weeks after residents chose to break away from their parent county. With 310,227 residents, it ranked second among the county's cities at the 2020 census.
Q 05Which Orange County city, its fourth most populous in 2020, holds a trademark on the nickname Surf City USA?
Huntington Beach
Huntington Beach earned the name from swells that focus on its shore and keep the surf consistent all year. With 198,711 residents in 2020, it was also the county's most populous beach city.
Q 06Which NHL team, founded in 1993 and named after a Disney film, plays its home games at Orange County's Honda Center?
Ducks
Ducks is short for the Mighty Ducks, the 1992 film title the team first carried. In 2007 it became the first California club to win the Stanley Cup.
Q 07Which Western film star, who died in 1979, has had his name on Orange County's commercial airport ever since?
John Wayne
John Wayne lived close to the airfield, and county supervisors renamed it in his honor within the year of his death. A bronze statue of the Duke was installed at the terminal in 1982.
Q 08Which US president was born in Yorba Linda in 1913 and later kept a Western White House in San Clemente?
Richard Nixon
Richard Nixon is buried a few feet from the house where he was born, on the grounds of his presidential library. His San Clemente mansion, La Casa Pacifica, was modeled on a country home in Spain.
Q 09Which electric guitar brand, maker of the Telecaster and Stratocaster, was founded in Fullerton, California, in 1946?
Fender
Fender grew out of the radio repair shop that Leo Fender opened in Fullerton in 1938. His Telecaster became the first commercially successful solid-body electric guitar.
Q 10Which Orange County city, about 44 percent Vietnamese American in 2020, is nicknamed the capital of overseas Vietnamese?
Westminster
Westminster drew refugees after the Vietnam War, and its Little Saigon district around Bolsa Avenue is part of the largest Vietnamese community outside Vietnam. The city began in 1870 as a temperance colony.
Q 11Which Orange County city was master-planned in the 1960s around a new university whose sports teams are the Anteaters?
Irvine
Irvine was drawn up by architect William Pereira and a ranch company's planners as a city of 50,000 people. By the 2020 census it had 307,670 residents, the third most in the county.
Q 12Which Orange County coastal city is the setting of both the teen drama The O.C. and the sitcom Arrested Development?
Newport Beach
Newport Beach is home to the Cohens and the Bluths alike, yet Arrested Development was filmed mainly in Culver City and Marina del Rey. The Bluths' frozen banana stand sits on the city's Balboa Island.
Q 13Orange County was created in 1889 when its residents voted to break away from which much larger county?
Los Angeles
Q 21Which Orange County city of half-acre lots and one small shopping center had the county's smallest population in 2020?
Villa Park
Villa Park counted just 5,843 residents at the 2020 census. In the 1860s it was called Mountain View, until the Post Office refused the name because another California town already used it.
Q 22Which city became Orange County's 34th and newest when it incorporated in 2001 after a local cityhood campaign?
Aliso Viejo
Aliso Viejo was planned so that every home sat within a mile and a half of its central business park, to let residents live near their work. It had been an unincorporated community since 1979.
Q 23Which Orange County city, about ninety percent of it a gated retirement community, had a median age near 75 in 2020?
Los Angeles County lost its southern end after a June 1889 referendum passed by 2,509 votes to 500. The new county's citrus name is said to have been chosen to suggest a place where anything could grow.
Q 14Which Bravo reality franchise began in 2006 with a series set in Coto de Caza, a gated Orange County community?
The Real Housewives
The Real Housewives began with an Orange County series that premiered on March 21, 2006. Its creator first planned to film inside a single gated community, and the show later spread to other parts of the county.
Q 15Which Orange County band named its 1995 breakthrough album Tragic Kingdom, a teacher's nickname for Disneyland?
No Doubt
No Doubt borrowed the phrase from the seventh-grade teacher of guitarist Tom Dumont. The album's cover photos were shot on local city streets and among orange trees.
Q 16Which NFL team played its home games in Orange County from 1980 to 1994 before leaving for St. Louis?
Rams
Rams owner Carroll Rosenbloom wanted a stadium small enough to keep home games from being blacked out on local television. The team's old home seated almost 100,000 and was hard to fill even in good years.
Q 17What did Orange County do in December 1994 after its treasurer's leveraged investments lost about $1.6 billion?
Declared bankruptcy
Orange County declared bankruptcy on December 6, 1994, at the time the largest municipal bankruptcy in US history. The losses cost 3,000 county jobs, and the county did not emerge until June 1996.
Q 18Which Orange County city stages the Pageant of the Masters, where costumed volunteers pose as famous works of art?
Laguna Beach
Laguna Beach grew up as an artists' colony, and the pageant began at its Festival of Arts in 1933. Each summer show runs for 90 minutes of living pictures set to a narrator and an orchestra.
Q 19Which county lies immediately southeast of Orange County, beginning just past the beaches of San Clemente?
San Diego
San Diego County dwarfs its neighbor: Orange County is the smallest county in Southern California by area, with just 791 square miles of land.
Q 20Which city, Orange County's fifth most populous in 2020, hosts a Strawberry Festival each Memorial Day weekend?
Garden Grove
Garden Grove has held the festival since 1958 to honor its farming past, and the highlight is the cutting of a giant strawberry shortcake. The city counted 171,949 residents at the 2020 census.
Laguna Woods
Laguna Woods grew out of a Leisure World development that welcomed its first residents in 1964, built for people aged 52 and older. Residents voted to make it the county's 32nd city in 1999.
Q 24Which fruit drink was created in a converted Fullerton garage in 1934 as a syrup topping for ice cream?
Hawaiian Punch
Hawaiian Punch started as a syrup of orange, pineapple, passion fruit, guava and papaya sold to ice cream parlors. Customers then discovered that it made an appealing drink when mixed with water.
Q 25South Coast Plaza in Costa Mesa, California's largest mall, was built on a Segerstrom family field of which crop?
Lima beans
Lima beans gave way to department stores when the Segerstrom cousins opened the mall in March 1967. The family still owns it privately, a rarity among big American shopping centers.
Q 26The huge World War II hangars near Tustin, among the largest wooden structures ever built, were designed to house what?
Navy blimps
Navy blimps flew coastal patrols from the base, which later became the country's first air station developed solely for helicopters. The north hangar burned down in 2023.
Q 27What destroyed Mission San Juan Capistrano's Great Stone Church in 1812, killing forty people at a morning service?
An earthquake
An earthquake on December 8, 1812, leveled the only mission chapel in Alta California not made of adobe. An attempt to rebuild it in 1815 failed for lack of construction expertise.
Q 28What name do locals give the twin-peaked ridge, topped by Santiago Peak, that is visible from much of Orange County?
Saddleback
Saddleback is formed by Santiago Peak, the county's highest point at 5,689 feet, and a neighboring summit about 200 feet lower. The dip between the two gives the ridge its shape.
Q 29Which skateboarding shoe brand opened its first store in Orange County in 1966, selling pairs for as little as $2.49?
Vans
Vans opened on March 16, 1966, without change in the till, so the first customers took their shoes home and came back the next day to pay. The shop traded as the Van Doren Rubber Company.
Q 30Which comedian, raised in Orange County, got his first job selling guidebooks at the newly opened Disneyland?
Steve Martin
Steve Martin went on to work in the park's magic shop, where he perfected tricks, juggling and balloon animals. He later joined a comedy troupe at Knott's Berry Farm.