909 Area Code 🌍☎️

Ontario is a city in southwestern San Bernardino County, California, located 35 miles east of downtown Los Angeles in the Inland Empire metropolitan area, with a 2020 census population of 175,265. The city is home to Ontario International Airport, the 8th-busiest airport in the United States by cargo volume as of 2026, serving as a critical freight hub between the Los Angeles and Long Beach ports and the rest of the country. Ontario was founded as the Ontario Model Colony in 1882 by Canadian engineer George Chaffey and his brothers William and Charles, who named the settlement after their home province of Ontario, Canada's most populous province. The area was originally inhabited by the Tongva people for over 1,000 years before Spanish settlement in 1771 and subsequent Mexican and American control formalized by the Treaty of Guadalupe Hidalgo in 1848. The region's history includes the establishment of Mission San Gabriel Arcángel in 1771, the passage of American explorer Jedediah Smith in 1826 on the first known overland journey from the east to west coast, and the development of trade routes including the El Camino Real and Route 66. San Bernardino is the county seat of San Bernardino County in Southern California's Inland Empire region, with a 2020 population of 222,101 making it California's 18th-largest city and anchoring the 12th-largest metropolitan area in the nation at 4.74 million residents. Named in 1810 by Spanish priest Francisco Dumetz, the area transitioned from Tongva indigenous settlements and Mexican ranchos to an American town founded by Mormon settlers in 1851 and officially incorporated in 1854. The Mormons established San Bernardino based on their "City of Zion" urban plan and developed irrigated commercial farming and lumber operations that supplied much of Southern California before most departed in 1857. Following the Mormon exodus, the city emerged as a major commercial hub at the crossroads between Southern California and the American Southwest, becoming the economic, cultural, and political center of the San Bernardino Valley and the wider Inland Empire. Today, San Bernardino hosts the consulates of El Salvador, Guatemala, and Mexico, and serves as a college town through California State University, San Bernardino. Upland is a city in San Bernardino County, California, located at an elevation of 1,242 feet at the foot of the San Gabriel Mountains and on the border with Los Angeles County in the Inland Empire region. With a population of 79,040 as of the 2020 census, up from 73,732 in 2010, Upland was incorporated on May 15, 1906, and was previously named North Ontario. The city's history traces to 1810, when Spanish missionaries established it as a supply station on the Old Spanish Trail connecting Arizona to California, naming the surrounding area "Cucamonga" after the Tongvan word for "sand place." Upland sits along the historic routes pioneered by Juan Bautista de Anza (1774-1776) and later Antonio Armijo's Santa Fe Trail (1829), which brought commerce between New Mexico and Los Angeles through the Cajon Pass. The area's economy was historically based on cattle ranching under Spanish mission rule and remains a key location along the primary trade routes connecting California's interior to the desert Southwest.