Estancia High School

Mesa Verde is a neighborhood in Costa Mesa, California. It is bounded by the Interstate 405 freeway to the north, Harbor Boulevard to the east, Victoria Street to the south, and the Santa Ana River to the west. The community is bisected by Adams Avenue and contains the Fairview Channel, a Santa Ana River tributary that connects to Fairview Park, a wetland and riparian natural area. The neighborhood is home to two golf course complexes–the Costa Mesa Golf Course and the Mesa Verde Country Club. In 2018, the median household income in Mesa Verde was US$84,968.

The Diego Sepúlveda Adobe (sometimes known as the Costa Mesa Estancia or the Santa Ana Estancia) is an adobe structure in Costa Mesa, Orange County, California.

The Pegasus School is a co-ed, non-profit, non-sectarian, private day school on a 14-acre (5.7 ha) campus in Huntington Beach, California.

Cuckoo's Nest (1976–1981) was a nightclub that was located at 1714 Placentia Avenue in Costa Mesa, California. The club was founded in 1976 by Jerry Roach, a former bar owner who had turned to selling real estate, after receiving the property from a client as a commission payment. A local Costa Mesa bar that was already in operation was named Jaws, after the film, and Roach took inspiration from this and named his new venture after One Flew Over the Cuckoo's Nest, the big box-office draw of that year, to make the club's name easily memorable. The club became known for punk rock.

Brethren Christian was a private Christian middle school and high school located in Huntington Beach, California. It was situated on a 15-acre (61,000 m2) site leased from the Huntington Beach City School District, formerly the site of Gisler Middle School. The school was independently operated and controlled by a board of directors. Due to financial troubles, the school eventually dropped its middle school and relocated to the campus of Grace Lutheran Church. The school permanently closed in 2020 following a large deficit and a 64% drop in enrollment.

Costa Mesa (; Spanish for "Table Coast") is a city in Orange County, California. Since its incorporation in 1953, the city has grown from a semi-rural farming community of 16,840 to an urban area including part of the South Coast Plaza–John Wayne Airport edge city, one of the region's largest commercial clusters, with an economy based on retail, commerce, and light manufacturing. The city is home to the two tallest skyscrapers in Orange County. The population was 111,918 at the 2020 United States Census.

Orange Coast College (OCC) is a public community college in Costa Mesa in Orange County, California. It was founded in 1947, with its first classes opening in the fall of 1948. It provides Associate of Art and Associate of Science degrees, certificates of achievement, and lower-division classes transferable to other colleges and universities. The school enrolls approximately 24,000 undergraduate students. In terms of population size, Orange Coast College is the third-largest college in Orange County.

LeBard Stadium is a 7,600-seat stadium located on the Orange Coast College campus in Costa Mesa, California. It is the home football stadium for both the Orange Coast College Pirates and the Golden West College Rustlers football teams. The stadium opened on September 16, 1955, and is lined for both football and soccer. Originally named Pirate Stadium, it was renamed in 1967 for Harry R. LeBard, a community leader and a founding member of the district's board of trustees.

Genga, alternative spelling Gengaa and Kengaa, was a Tongva and Acjachemen village located on Newport Mesa overlooking the Santa Ana River in the Newport Beach and Costa Mesa, California area which included an open site now referred to as Banning Ranch. Archaeological evidence dates the village at over 9,000 years old. Villagers were recorded as Gebit in Spanish Mission records. The village may have been occupied as late as 1829 or 1830. An attempt in 2001 to preserve a nearby 9,000 year old village site from commercial development failed. A similar attempt to save a burial site of Genga in the 2010s also failed. This has initiated concerns over preservation in the area. A large part of the contemporary site of Genga situated in Banning Ranch may be transformed into a public open space as of 2022. The Tongva and Acjachemen support having a voice in the process.

Costa Mesa High School/Middle School is a public secondary school serving grades 7 through 12 in Costa Mesa, California. It is part of the Newport Mesa Unified School District.

A Santa Ana man drove into a Costa Mesa preschool playground on May 3, 1999, and killed two students and injured four other students and a teacher's aide.

The Orange County Sanitation District (OCSD) is a public agency that provides wastewater collection, treatment, and disposal services for approximately 2.6 million people in central and northwest Orange County. OCSD is a special district that is governed by a Board of Directors consisting of 25 board members appointed from 20 cities, two sanitary districts, two water districts and one representative from the Orange County Board of Supervisors. OCSD has two operating facilities that treat wastewater from residential, commercial and industrial sources. It is the third largest wastewater treatment facility west of the Mississippi River. OCSD and the Orange County Water District were awarded the Stockholm Industry Water Award in 2008 for pioneering work to develop with Trojan Technologies (Canada) the Groundwater Replenishment System, the world’s largest water purification plant for groundwater recharge. Orange County Sanitation District is commonly referred to as OCSD, though not to be confused with Orange County Sheriff's Department that shares the same acronym.