Orange County, California

Orange County: county in California, United States

About

Orange County is a county located in the U.S. state of California. As of the 2010 census, the population was 3,010,232 and a population density of 1,226 people per km². After 10 years in 2020 county had an estimated population of 3,166,857 inhabitants. Its county seat is Santa Ana. The county was created 137 years ago in 1889.

Orange County locator map
Location of Orange County on California map.

County Snapshot

Orange County at a glance

Orange County currently has 38 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

38

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Quick Facts about Orange County

Population 3,166,857 (2020)
Country United States of America
State California (United States)
Different from Orange County, Orange County, Orange County, Orange County, Orange County, Orange County, Orange County
Area 2455 km2
Water as percent of area 16.61%
Land as percent of area 83.39%
Latitude & Longitude 33.6769,-117.7762
Named for orange
Altitude 161 feet / 49 meters
Capital Santa Ana
Establishment March 11, 1889
Time Zone Pacific Time Zone
Local time 15:58:58 (18th April 2026)
Density 1,290 Pop. per km² as of 2020
Population growth 4.95% (2010-2020)
Weather 56℉ Mostly Clear 7-days weather
Old Orange County Courthouse  Santa Ana  California image
Old Orange County Courthouse Santa Ana California image

Geography

Orange County is located at 33°40'37"N 117°46'34"W (33.6769100, -117.7761700). It has 4 neighbors: Los Angeles County, Riverside County, San Bernardino County and San Diego County.

Orange County map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Orange County is Anaheim with a population of 353,676. Other cities include, Santa Ana population 331,301, Irvine population 283,700, Huntington Beach population 198,246 and Garden Grove population 171,366. See all Orange County cities & populated places.

Orange County Populated Places (more)

Cities, towns, neighborhoods & other populated places in Orange County.

City Name Population Title
Anaheim 353,676 The second most populous city in Orange County, California and the center of the Anaheim metropolitan area.
Santa Ana 331,301 The most populous city in Orange County, California and the center of the Santa Ana metropolitan area.
Irvine 283,700 A city located in Orange County, California.
Huntington Beach 198,246 The most populous city in Orange County, California.
Garden Grove 171,366 The fourth most populous city in Orange County, California.
Fullerton 139,921 The eighth most populous city in Orange County, California.
Orange 138,192 The sixth most populous city in California.
Costa Mesa 112,366 The most populous city in Orange County, California.
Mission Viejo 94,242 A city in Orange County, California.
Westminster 89,740 A city in Orange County, California.
Newport Beach 86,834 A city in Orange County, California.
Lake Forest 85,329 A city in Orange County, California.
Buena Park 81,269 A city in Orange County, California.
Tustin 79,815 A city in Orange County, California.
Yorba Linda 68,027 A city in Orange County, California.
Laguna Niguel 64,569 The most populous city in Orange County, California.

Weather

56°F
Mostly Clear
5 to 10 mph S Friday Night

Mostly clear, with a low around 56. South wind 5 to 10 mph, with gusts as high as 20 mph.

7-Day Forecast

Official website of Orange County

Official Website
  • Santa Ana

Demographics

The population of Orange County increased by 4.95% in 10 years.

Year Population % Change Method
2010 3,010,232 - census
2011 3,049,271 1.28% estimation process
2012 3,078,068 0.94% estimation process
2013 3,104,950 0.87% estimation process
2014 3,126,537 0.69% estimation process
2015 3,149,280 0.72% estimation process
2016 3,164,986 0.5% estimation process
2017 3,174,289 0.29% estimation process
2018 3,175,973 0.05% estimation process
2019 3,175,692 -0.01% estimation process
2020 3,166,857 -0.28% estimation process
Map of countries with a smaller population than Orange County
Comtat d'Orange, Comte d'Orange, Comté d'Orange, Condado de Orange, Condado han Orange, Contea di Orange, Hrabstwo Orange, Kondado ng Orange, Orandzh, Orange, Orange Comitatus, Orange Ili, Orange İli, Orange'i maakond, Orangen piirikunta, Orindzh, Quan Cam, Quận Cam, chen xian, olenji gun, orenja ka'unti, orenji jun, shhrstan awrnj kalyfrnya, Орандж, Ориндж, מחוז אורנג', اورنج کاؤنٹی، کیلیفورنیا, شهرستان اورنج، کالیفرنیا, مقاطعة أورانج، كاليفورنيا, ওরেঞ্জ কাউন্টি, オレンジ郡, 橙縣, 오렌지 군

People born in Orange County (172)

People born in Orange County, including actress Elizabeth Marvel, Korean-singer Sunny, Christian singer-songwriter Krystal Meyers, .

More notable people

  • Ashley Hartman (American actor, singer and model) she was born in 31/08/1985
  • Mike Mills (American musician; multi-instrumentalist for American alternative rock band R.E.M.) he was born in 17/12/1958
  • Samoa Joe (American professional wrestler) he was born in 17/03/1979
  • Tara Lynne Barr (American actress) she was born in 02/10/1993
  • Emily Mae Young (American actress) she was born in 14/02/1990
  • Mark Kiefer (American baseball player) he was born in 13/11/1968
  • Nate Berkus (American interior designer) he was born in 17/09/1971
  • Nicole Dubuc (American actress and writer) she was born in 06/11/1978
  • Tracy Lynn Cruz (American actress and model) she was born in 29/01/1976
  • Christopher Castile (American child actor) he was born in 15/06/1980
  • Coby Bell (American actor and producer) he was born in 11/05/1975
  • Daniel Lee Corwin (American Serial Killer) he was born in 13/09/1958
  • Enver Gjokaj (American actor) he was born in 12/02/1980
  • Ethan Dampf (American actor) he was born in 27/05/1994
  • Alex Varkatzas (American singer) he was born in 17/01/1982
  • Susan McCaw (American diplomat) she was born in 01/01/1962
  • Laurie J. Marks (fantasy author) she was born in 27/03/1957
  • Andrew J. Ferchland (American actor) he was born in 26/01/1987

Other places with the same name (7)

California Other Counties (more counties)

County Name Population Title
Los Angeles County 9,943,046 County in California, United States of America
Los Angeles 3,970,219 The second most populous city in the United States and the center of the Los Angeles metropolitan area.
San Diego County 3,332,427 Founded in 1850, is one of 58 counties in the US state of California.
Riverside County 2,489,188 County in California, United States
San Bernardino County 2,189,183 County in California, United States
Santa Clara County 1,907,105 County in California, United States
Alameda County 1,662,323 County in California, United States
Sacramento County 1,559,146 County in California, United States
San Diego 1,422,420 The eighth most populous city in the United States and the center of the San Diego metropolitan area.
Laguna 1,370,232 A city located in Orange County, California.
Contra Costa County 1,152,333 County in California, United States
San Jose 1,013,616 The tenth most populous city in the United States and the center of the San Jose metropolitan area.
Fresno County 1,000,918 County in California, United States
Kern County 901,362 This county is located in the southern San Joaquin Valley, extending eastward over the Tehachapi Mountains to the Mojave Desert.
San Francisco County 866,606 County, coextensive with the city of San Francisco, California, United States
San Francisco 866,606 The seventeenth most populous city in the United States and the center of the San Francisco Bay Area.