The Pegasus School

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.

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 Reptile Zoo is an indoor zoo focusing on reptiles in Fountain Valley, California. Fish, amphibians, and arachnids are also on display. It contains the pet store Prehistoric Pets, which sells items targeted towards reptile owners. Almost 200,000 people have visited the zoo since its founding. People are allowed to hold specific animals while supervised, and children can have birthday parties at the zoo. For an additional price, one can also feed tortoises with lettuce.

The Municipal Water District of Orange County, commonly known by the acronym MWDOC, is a wholesale water provider, water resource development and planning agency, water-centric information, education, emergency planning, and conservation resource hub for Orange County. Local water supply sources meet only about half of the region's total water needs. To fulfill the remaining demand, MWDOC buys imported water from the California State Water Project in northern California and the Colorado River through the Metropolitan Water District of Southern California (Metropolitan). MWDOC delivers water to its 27 member agencies - made up of both water districts and city water departments - who then, in turn, provide retail water service to the public. Metropolitan is the largest municipal water supplier in the United States and MWDOC is the third largest Metropolitan member agency.

The Orange County Water District is a special district that manages the groundwater basin beneath central and northern Orange County, California. The groundwater basin provides a water supply to 19 municipal water agencies and special districts that serve more than 2.4 million Orange County residents. The Orange County Water District's service area covers approximately 350 square miles and the District owns approximately 1,600 acres in and near the Santa Ana River, which it uses to capture water flows for groundwater recharge. Additionally, the Orange County Water District owns approximately 2,150 acres of land above the Prado Dam in the Prado Reservoir and uses that land for water conservation, water storage and water quality improvements. The water district's administrative offices and the Groundwater Replenishment System facilities are located in Fountain Valley, while it also operates various groundwater recharge facilities located in Anaheim and Orange.

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.

Huntington Christian School (HCS) is a private Christian K–8 school in Huntington Beach, California, United States. It operates as a ministry of the First Christian Church of Huntington Beach and offers preschool through eighth-grade education, incorporating Christian teachings. Its main campus is located at Levee Drive, Huntington Beach.

Estancia High School is located in Costa Mesa, California and is part of the Newport-Mesa Unified School District which serves approximately 21,000 students who reside in the cities of Newport Beach and Costa Mesa. Estancia High School is a comprehensive high school which serves the needs of approximately 1,200 students in Grades 9-12.

SureFire, LLC. is an American company headquartered in Fountain Valley, California. Their main products are flashlights, weapon-mounted lights, headlamps, and laser sights. In addition, Surefire produces knives, sound suppressors, earplugs, Picatinny Rails, high capacity magazines, and batteries. The company is a major supplier of flashlights, weapon lights, and lasers to the U.S. Armed Forces and its allies, especially for elite special operations groups such as the Navy SEALs. Surefire products are widely used in the U.S. by law enforcement agencies and SWAT teams.

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.

Orange Coast Memorial Medical Center (OCMMC) is a 240-bed community hospital in Fountain Valley, California. It is part of the four MemorialCare medical centers, located in Orange and Los Angeles counties. The 14 bed paramedic receiving Emergency Department has received awards that include CEP's Emergency Department of the Year for 2000 and was recognized as “Best in State” by Parkside Surveys in 1999 for physician care and waiting times. Their 100 percent Board certified staff average over 15 years in full-time practice.

Taco María is a Michelin Guide-starred Mexican restaurant in Costa Mesa, California.