The Tri-Valley League is a high school athletic league that is part of the CIF Southern Section. [1] In 2014 it was amalgamated with the Frontier League as part of the Tri-County Athletic Association. Members are located in Santa Barbara County and Ventura County, with Malibu High School in a far western finger of Los Angeles County.

Moorpark College is a public community college in Moorpark, California. It was established in 1967 with enrollment of 2,500 students and enrolled 14,254 students in 2014. An Exotic Animal Training and Management center houses over 200 animals on campus.
Notre Dame High School, Belmont is a private, All-Female, Catholic, college preparatory high school located in the San Mateo County suburb of Belmont, California.

The North Coast Section (NCS) is a part of the California Interscholastic Federation, governing the eastern portion of the San Francisco Bay Area, up along the northern coast of the state of California, from Fremont in the south to Crescent City in the north. It also governs the private schools in the city of Oakland. Due to this split in regions, the section is split in two for some championships, including football.
Malibu High School (MHS) is a public secondary school in Malibu, California for middle school and high school. As one of three high schools in the Santa Monica-Malibu Unified School District, MHS serves the Malibu and Santa Monica communities and by inter-district permit, the greater Los Angeles area and Ventura County.
The Blanchard Valley Conference is an Ohio High School Athletic Association affiliated athletic league located in Hancock, Putnam, and Wood Counties in northwest Ohio. Its name derives from the Blanchard River, which runs through the area in which the schools are located. Findlay, which is part of the Three Rivers Athletic Conference, is the only high school in Hancock County that is a member of the Ohio High School Athletic Association that is not part of the BVC.
The Tri-County Conference (TCC) is an MHSAA athletic league currently located in Hillsdale, Lenawee, and Monroe Counties.
The California Interscholastic Federation-Southern Section (CIF-SS) is the governing body for high school athletics in most of Southern California and is the largest of the ten sections that comprise the California Interscholastic Federation (CIF). Its membership includes most public and private high schools in Orange, Los Angeles, Riverside, San Bernardino, Ventura, Santa Barbara, and San Luis Obispo counties. Teams from the Los Angeles Unified School District (LAUSD) and surrounding areas have competed in the CIF Los Angeles City Section since 1935. CIFSS's offices are located in Los Alamitos.
Louisville High School is a public high school located in Louisville, Ohio, United States. It is the only high school in the Louisville City School District. It serves all of the city of Louisville and the majority of the surrounding Nimishillen Township.
Gloucester City Junior-Senior High School is a comprehensive six-year community public high school that is based in Gloucester City, New Jersey, United States, serving students from seventh through twelfth grade as the lone secondary school of the Gloucester City Public Schools, one of 31 former Abbott districts statewide, which are now referred to as "SDA Districts" based on the requirement for the state to cover all costs for school building and renovation projects in these districts under the supervision of the New Jersey Schools Development Authority.
The Tri-County Conference (TCC) is an athletic conference consisting of both public and parochial high schools located in Camden County, Cape May County, Cumberland County, Gloucester County and Salem County, New Jersey. Although it is called the Tri-County Conference, five counties are represented. The Tri-County Conference operates under the aegis of the New Jersey State Interscholastic Athletic Association.

Holliston High School is the public secondary school serving Holliston, Massachusetts, United States. As of 2018, the school enrolled 809 students. The current principal is Nicole Bottomley. MCAS, ACT, and SAT scores of Holliston High School students are consistently well above both state and national averages.
The North Jersey Tri-County Conference was a high school athletic conference in New Jersey, created by the New Jersey State Interscholastic Athletic Association (NJSIAA) as a holding conference. The NJTCC consisted of 45 public and non-public schools in Bergen, Passaic and Hudson counties, and existed for the 2009-2010 academic year.
Palomares League is a high school athletic league in Southern California. It is a member of the CIF Southern Section, serving the eastern San Gabriel Valley and Chino Hills in San Bernardino County. The 2014–15 school year will be its inaugural season. Several of these schools were previously in what was known as the Sierra League.
The Frontier League is a high school athletic conference in Santa Barbara and Ventura Counties affiliated with the CIF Southern Section. In 2014 it was amalgamated with the Tri-Valley League as part of the Tri-County Athletic Association.
The Tri-County Athletic Association (TCAA) is a high school athletic conference in California affiliated with the CIF Southern Section. Established in 2006, the association is an amalgamation of the Tri-Valley League and the Frontier League. The TCAA uses a system of promotion and relegation to place each school's teams, by sport and gender, into either league for a two-year period based on performance. As of the 2018-2019 academic year, the association is composed primarily of private schools located in Santa Barbara and Ventura counties; previously, the conference's footprint included Los Angeles County.
The Coastal Canyon League (CCL) is a high school athletic conference that is affiliated with the CIF Southern Section (CIF-SS). The league was established in 2014 during the CIF-SS Northern Area's biennial releaguing process, drawing several members from the Marmonte League as well as Oak Park High School from the Tri-County Athletic Association and Adolfo Camarillo High School from the Pacific View League. Members are located in Ventura County with the exception of Agoura High School in Los Angeles County. Calabasas High School, also in Los Angeles County, competed in the CCL in swimming and water polo only.
Monterey Bay League (MBL) was a high school athletic conference part of the CIF Central Coast Section of the California Interscholastic Federation. It comprised high schools generally around Monterey County, California, with schools from southern Santa Clara County, Watsonville on the edge of Santa Cruz County and one of only two high schools in San Benito County. Not all schools participated in all sports. In 2017, Monterey Bay League merged with the Mission Trail Athletic League (MTAL) to create the Pacific Coast Athletic League (PCAL).
Mission Trail Athletic League (MTAL) was a high school athletic conference part of the CIF Central Coast Section of the California Interscholastic Federation. It comprised high schools generally around Monterey County, California, with schools from southern Santa Clara County, Santa Cruz County and one of only two high schools in San Benito County. Not all schools participated in all sports. In 2017, Mission Trail Athletic League merged with the Monterey Bay League (MBL) to create the Pacific Coast Athletic League (PCAL).

Collegium Charter School ("CCS") is a tuition-free, independent K-12 public school offering families a choice for their children’s elementary and secondary education. Located in Exton, Pennsylvania in the Oaklands Corporate Center, CCS's campus consists of six student buildings and one building for Administrative Offices.
The Citrus Coast League (CCL) is a high school athletic conference in California that is affiliated with the CIF Southern Section. Established in 2018, the league consists primarily of small public high schools in Ventura County, with one member each in Los Angeles and Santa Barbara counties. Most CCL schools competed previously as members of the Tri-County Athletic Association, with Hueneme High School joining from the Pacific View League.