Inland Empire
The Inland Empire is a metropolitan area and region inland of and adjacent to coastal Southern California in the Greater Los Angeles area, focusing around the cities in Riverside and San Bernardino county with Los Angeles County and Orange County to the west. The region, at its narrowest definition, includes the cities of northwestern Riverside County and southwestern San Bernardino County that are part of the contiguous urbanized area of Greater Los Angeles. It is sometimes considered to include the desert communities of the Coachella and Victor Valleys, respectively on the other sides of the San Gorgonio Pass and San Bernardino Mountains from the Santa Ana River watershed that creates the majority of the Inland Empire. A much wider definition includes the entireties of Riverside and San Bernardino counties, stretching east to the Nevada and Arizona borders and covering a larger area than West Virginia; this definition is primarily used by the US Census Bureau, which exclusively delineates metropolitan areas at the county level.
The U.S. Census Bureau–defined Riverside–San Bernardino–Ontario metropolitan area, which comprises Riverside County and San Bernardino, California, covers more than and had a population of about 4.6 million in 2020. At the end of the 19th century, the Inland Empire was a major center of agriculture, including citrus, dairy and winemaking. Agriculture declined through the 20th century and a rapidly increasing population, helped by families migrating in search of affordable housing, has led to more residential, industrial and commercial development since the 1970s.
Etymology
The term Inland Empire is documented to have been used by the Riverside Enterprise newspaper as early as April 1914. Developers in the area likely introduced the term to promote the region and to highlight the area's unique features. The "Inland" part of the name is derived from the region's location, generally about inland from Los Angeles and the Pacific Ocean. Originally, this area was called the Orange Empire due to the acres of citrus groves which extended from Pasadena to Redlands during the first half of the 20th century. The boundaries of the Inland Empire are nebulous, but the region is generally defined as the cities of western Riverside County and southwestern San Bernardino County, adjacent to the Los Angeles metropolitan area. A broader definition includes Palm Springs and the surrounding desert communities, and a much more widespread definition includes all of San Bernardino and Riverside counties.History
What is now known as the Inland Empire was inhabited for thousands of years, prior to the late 18th century, by the Tongva, Taaqtam, Ivilyuqaletem and Payómkawichum Native Americans. The first American settlers, a group of Mormon pioneers, arrived over the Cajon Pass in 1851. Although the Mormons left a scant six years later, recalled to Salt Lake City by Brigham Young during the church's Utah War with the U.S. government, other settlers soon followed.The entire landmass of Southern California was subdivided according to the San Bernardino Meridian, which was first plotted as part of the Public Land Survey System in November 1852, by Col. Henry Washington. Base Line Road, a major thoroughfare, today runs from Highland to San Dimas, intermittently along the absolute baseline coordinates plotted by Col. Washington. San Bernardino County was first formed out of parts of Los Angeles County on April 26, 1853. While the partition once included what is today most of Riverside County, the region is not as monolithic as it may sound. Rivalries between Colton, Redlands, Riverside and San Bernardino over the location of the county seat in the 1890s caused each of them to form their own civic communities, each with their own newspapers. On August 14, 1893, the state Senate allowed Riverside County to form out of land previously in San Bernardino and San Diego counties, after rejecting a bill for Pomona to split from L.A. County and become the seat of what would have been called San Antonio County.
The arrival of rail and the importation of navel and Valencia orange trees in the 1870s touched off explosive growth, with the area quickly becoming a major center for citrus production. This agricultural boom continued with the arrival of water from the Colorado River and the rapid growth of Los Angeles in the early 20th century, with dairy farming becoming another staple industry. In 1926, Route 66 came through the northern parts of the area, bringing a stream of tourists and migrants to the region. Still, the region endured as the key part of the Southern California "citrus belt" until the end of World War II, when a new generation of real-estate developers bulldozed acres of agricultural land to build suburbs. The precursor to the San Bernardino Freeway, the Ramona Expressway, was built in 1944, and further development of the freeway system in the area facilitated the expansion of suburbs and human migration throughout the Inland Empire and Southern California.
The region experienced significant economic and population growth through most of the latter half of the 20th century. In the early 1990s, the loss of the region's military bases and reduction of nearby defense industries due to the end of the Cold War led to a local economic downturn. The region as a whole had partially recovered from this downturn by the start of the 21st century through the development of warehousing, shipping, logistics and retail industries, primarily centered around Ontario. During the 2008 Recession, industry suffered heavily but had begun to recover by 2010.
Geography
Physical geography
Physical boundaries between Los Angeles and the Inland Empire from west to east are the San Jose Hills splitting the San Gabriel Valley from the Pomona Valley, leading to the urban populations centered in the San Bernardino Valley. From the south to north, the Santa Ana Mountains physically divide Orange County from Riverside County. The Santa Rosa Mountains, as well as the Southern California portion of the Sonoran Desert, physically divide Riverside County from San Diego County.Elevations range from at the top of San Gorgonio Mountain to at the Salton Sea. The San Bernardino mountains are home to the San Bernardino National Forest and the resort communities of Big Bear Lake, Lake Arrowhead, and Running Springs. The Santa Ana River extends from Mt. San Gorgonio for nearly through San Bernardino, Riverside, and Orange counties before it eventually spills into the Pacific Ocean at Newport Beach and Huntington Beach. While temperatures are generally cool to cold in the mountains, it can get hot in the valleys. In the desert resort of Palm Springs, near Joshua Tree National Park, summer temperatures can reach well over.
Political geography
Unlike most metropolitan areas that have grown up around a central city, the Inland Empire has two main focus cities, Riverside and San Bernardino. Other major cities in the region include Rancho Cucamonga, Ontario, and Corona. Suburban sprawl spreads out to form a connection with the Los Angeles metropolitan area. Further development is steadily, if not heavily, encroaching past the mountains into the outlying desert areas. The Inland Empire borders both Los Angeles and Orange counties. Freeways in Southern California are heavily used, but this comprehensive freeway system has made travel between the Inland Empire and these two counties generally direct, especially to and from Los Angeles County.The Inland Empire has also been referred to as the 909, after one of the region's most used area codes. In 2004, because of growing demand for telephone numbers, most of western Riverside County was granted a second area code, 951, which is overlaid with the 909 area code.
The Coachella Valley region of Palm Springs, Palm Desert, and Indio is located much farther east in Riverside County and is part of the much larger 760 area code. This area is sometimes considered a sub-region of the Inland Empire or its own separate region, the Desert Empire. This is to help differentiate it from the urbanized area containing the cities of San Bernardino and Riverside.
The RPA definition includes the Inland Empire in the Southern California Megaregion, alongside Anaheim, Bakersfield, Huntington Beach, Long Beach, Los Angeles, San Diego, the geographically separate Las Vegas Valley, as well as the Tijuana area in Mexico. Orange County and San Diego County are completely encompassed within the megaregion.
Boundaries and definitions
There is no universally accepted definition for the boundaries of the Inland Empire region. Some sources such as the Los Angeles Times have referred to Riverside County and San Bernardino County as the Inland Empire, mirroring the Riverside-San Bernardino-Ontario metropolitan area. Kern County is occasionally included within the Inland Empire.Some residents of certain areas, such as Twentynine Palms or the Coachella and Temecula valleys, may consider themselves separate from the IE. The California Travel and Tourism Commission, a not-for-profit, nongovernmental entity that promotes tourism in California, divides the state into several regions for its own purposes. The CTTC defines the Inland Empire as being bounded by Los Angeles County and Orange County on the west and San Diego County on the south, stretching as far north as the Victor Valley area and as far east as Idyllwild in the San Jacinto Mountains. The state of California's official website links to the CTTC's map with the description "Map of the Inland Empire region".
Other sources, including Kevin Starr, former state librarian of California, include the eastern Los Angeles County cities of the Pomona Valley, such as Claremont, Pomona, La Verne, San Dimas, and Diamond Bar. Other sources also include cities in Los Angeles County within the boundaries.