The Santa Ana Valley is located in Orange County, California and is bisected by the Santa Ana River. The valley is home to most of Orange County's central business districts. The cities of Anaheim, Buena Park, Costa Mesa, Fullerton, Irvine, Orange, Placentia, Santa Ana, and Yorba Linda are located in the Santa Ana Valley.
This valley was named Vallejo de Santa Ana in 1769 after the Gaspar de Portolà expedition, of which Friar Junípero Serra was a part, as well as Sargeant José Antonio Yorba, and José Manuel Nieto. The mission located closest to the Santa Ana Valley is Mission San Juan Capistrano, which was built east of the San Joaquin Hills, in the present day city of San Juan Capistrano.
The historic Ranchos of California in the Santa Ana Valley area:
Santa Ana is a city in and the county seat of Orange County, California, United States. Located in the Greater Los Angeles region of Southern California, the city's population was 310,227 at the 2020 census. As of 2023, Santa Ana is the third most populous city in Orange County, the 14th-most populous city in California, and the 65th most populous city in the United States. Santa Ana is a major regional economic and cultural hub for the Orange Coast.
The Chino Hills are a mountain range on the border of Orange, Los Angeles, and San Bernardino counties, California, with a small portion in Riverside County. The Chino Hills State Park preserves open space and habitat in them.
Olive is an unincorporated parcel of about 32.67 acres (132,200 m2) entirely surrounded by the city of Orange, located along Lincoln Avenue, between Eisenhower Park and Orange Olive Road.
José Antonio Yorba, also known as Don José Antonio Yorba I, was a Spanish Californio soldier and an early settler of Spanish California.
The Diego Sepúlveda Adobe, sometimes called the Costa Mesa Estancia or the Santa Ana Estancia, is an adobe structure in Costa Mesa, Orange County, California. It is the second-oldest building still standing in the county.
Rancho Santiago de Santa Ana was a 63,414-acre (256.63 km2) Spanish land concession in present-day Orange County, California, given by Spanish Alta California Governor José Joaquín de Arrillaga in 1810 to Jose Antonio Yorba and his nephew Pablo Peralta. The grant extended eastward from the Santa Ana River to the Santa Ana Mountains, with a length of more than 22 miles (35 km).
Rancho Cañón de Santa Ana was a 13,328-acre (53.94 km2) land grant in present-day Orange County, California given by Mexican governor José Figueroa in 1834 to Bernardo Yorba. The name means "Canyon of Santa Ana". The grant included present-day Yorba Linda.
Bernardo Yorba was a prominent Californio landowner, ranchero, politician, and public figure. He was one of the wealthiest men in early 19th-century California. Yorba also served as alcalde (mayor) of Santa Ana. The city of Yorba Linda is named after him.
Santiago Creek is a major watercourse in Orange County in the U.S. state of California. About 34 miles (55 km) long, it drains most of the northern Santa Ana Mountains and is a tributary to the Santa Ana River. It is one of the longest watercourses entirely within the county. The creek shares its name with Santiago Peak, at 5,687 ft (1,733 m) the highest point in Orange County, on whose slopes its headwaters rise.
Rancho Lomas de Santiago was a 47,227-acre (191 km2) Mexican land grant given by Mexican Governor Pío Pico to Teodosio Yorba in 1846. The name means "Hills of St. James". The rancho included parts of present-day Irvine and Tustin in what is now eastern Orange County, California.
Rancho La Sierra was a 17,769-acre (71.91 km2) Mexican land grant in present-day Riverside County, California, United States. In 1846 governor Pio Pico issued the grant to Bernardo Yorba. The grant lay between Rancho Jurupa and Rancho El Rincon, and included the present-day city of Corona.
Rancho La Sierra was a 17,774-acre (71.93 km2) Mexican land grant in present-day Riverside County, California, United States. In 1846 Governor Pio Pico issued the grant to Vicenta Sepulveda. The rancho includes the present-day city of Norco, and the western end of Riverside.
Rancho San Emidio was a 17,710-acre (71.7 km2) Mexican land grant in present-day Kern County, California given in 1842 by Governor Juan Alvarado to José Antonio Dominguez. The grant was located along San Emigdio Creek in the northeastern foothills of the San Emigdio Mountains, between Santiago Creek on the west and Pleitito Creek on the east.
Rancho Santa Ana was a 21,522-acre (87.10 km2) Mexican land grant in present day Ventura County, California given in 1837 by Governor Juan Alvarado to Crisogono Ayala and Cosme Vanegas. Rancho Santa Ana was located inland in the Ventura River Valley on the west side of the Ventura River across from Rancho Ojai which was granted in the same year. Rancho Santa Ana encompassed present day Lake Casitas and Oak View.
Rancho Niguel was a 13,316-acre (53.89 km2) Mexican land grant in the San Joaquin Hills, within present-day Orange County, California.
Rancho Cañada de San Vicente y Mesa del Padre Barona was a 13,316-acre (53.89 km2) Mexican land grant in present-day San Diego County, California, given in 1846 by Governor Pío Pico to Juan Bautista Lopez. The grant was located in the San Vicente and Padre Barona Valleys, which lie south of Ramona. The area served as grazing lands for Mission San Diego. Father José Barona served at Mission San Diego from 1798 to 1810, before moving to Mission San Juan Capistrano.
Rancho Boca de la Playa was a 6,607-acre (26.74 km2) Mexican land grant in present-day Orange County, California given in 1846 by Governor Pío Pico to Emigdio Véjar. The name refers to the wetlands estuary at the 'mouth of the beach,' or 'boca de la playa' in Spanish. This is the most southerly grant in Orange County, and extended along the Pacific coast from San Juan Creek in the south of present-day San Juan Capistrano south to San Clemente.
Doña María Ygnacia López de Carrillo was a Californio ranchera. She was the founder of Santa Rosa. She married into the prominent Carrillo family of California and was the ancestor of numerous prominent Californians.
The Sepúlveda family is a prominent Californio family of Southern California. Members of the family held extensive rancho grants and numerous important positions, including Alcalde de Los Ángeles, California State Assemblymen, and Los Angeles County Supervisor.
34°25′29″N119°20′41″W / 34.4247°N 119.3448°W