
With Spanish colonization and the subsequent Mexican era the area was sparsely populated at the land grant Ranchos, considering it unsuitable for missions. What is now known as the Inland Empire was inhabited for thousands of years, prior to the late 18th century, by the Tongva, Serrano, Cahuilla, and Luiseño Native Americans. See also: History of Riverside, California and History of San Bernardino, California Drawing of San Bernardino (1852) A broader definition includes Palm Springs and the surrounding desert communities, and a much widerspread definition includes all of San Bernardino and Riverside counties. 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. Originally, this area was called the Orange Empire due to the acres of citrus groves that once extended from Pasadena to Redlands during the first half of the 20th century. The "Inland" part of the name is derived from the region's location, generally about 60 miles (97 km) inland from Los Angeles and the Pacific Ocean. Developers in the area likely introduced the term to promote the region and to highlight the area's unique features. The term " Inland Empire" is documented to have been used by the Riverside Enterprise newspaper (now The Press-Enterprise) as early as April 1914. A map of the United States, highlighting the twin counties of the Inland Empire Agriculture declined through the 20th century, and since the 1970s a rapidly growing population, fed by families migrating in search of affordable housing, has led to more residential, industrial, and commercial development.Įtymology Yucca Valley, within the Morongo Basin, is halfway between the San Bernardino Valley and the Arizona state line. At the end of the 19th century, the Inland Empire was a major center of agriculture, including citrus, dairy, and winemaking. Most of the area's population is in southwestern San Bernardino County and northwestern Riverside County. Census Bureau–defined Riverside–San Bernardino–Ontario metropolitan area, which comprises Riverside County and San Bernardino County, California, covers more than 27,000 sq mi (70,000 km 2) and had a population of about 4.6 million in 2020. states- West Virginia, Maryland, Hawaii, Massachusetts, Vermont, New Hampshire, New Jersey, Connecticut, Delaware and Rhode Island.

The combined land area of the counties of the Inland Empire is larger than ten U.S.
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The bulk of the population is centered in the cities of northwestern Riverside County and southwestern San Bernardino County, and 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 forms the bulk of the Inland Empire a much broader definition includes all of Riverside and San Bernardino counties. The Inland Empire (commonly abbreviated as the IE) is a metropolitan area or region inland of and adjacent to coastal Southern California, centering around the cities of San Bernardino and Riverside, and bordering Los Angeles County to the west.
