The Inland Empire

The Inland Empire, comprising Riverside and San Bernardino counties in Southern California, is one of the fastest-growing and most economically dynamic regions in the western United States. With a combined population exceeding 4.6 million people, the Inland Empire has transformed over the past half-century from a predominantly agricultural region of citrus groves, dairy farms, and scattered towns into a vast metropolitan area that serves as both a residential extension of the Los Angeles Basin and a logistics and distribution powerhouse of national significance.

The region's name derives from its geographic position east of the Los Angeles coastal plain, beyond the San Gabriel and San Bernardino mountain ranges that separate it from the Pacific-influenced climate of the coast. San Bernardino County, at 20,105 square miles, is the largest county by area in the contiguous United States -- larger than nine U.S. states -- stretching from the suburban cities along the Interstate 10 and Interstate 15 corridors eastward through the Mojave Desert to the Nevada and Arizona borders. Riverside County extends from the urban communities along the I-15 and State Route 91 corridors southeastward through the Coachella Valley to the Colorado River and the Arizona border.

Logistics and Distribution

The Inland Empire's emergence as a logistics and distribution center is arguably the most significant economic transformation in the region's history. As the ports of Los Angeles and Long Beach -- the largest port complex in the Western Hemisphere -- process approximately 40 percent of all containerized cargo entering the United States, the goods that arrive by ship must move inland to reach consumers and businesses across the country. The Inland Empire, with its proximity to the ports (approximately 60 miles), relatively affordable land, excellent freeway access, and available workforce, has become the primary inland distribution hub for West Coast imports.

Massive warehouse and distribution centers, many exceeding one million square feet, line the Interstate 10, Interstate 15, and State Route 60 corridors. Major logistics companies, e-commerce fulfillment operations, and third-party distribution providers have established operations throughout Ontario, Riverside, Moreno Valley, Perris, Beaumont, and San Bernardino. The Ontario International Airport, which returned to local control from the Los Angeles World Airports system in 2016, has experienced significant cargo and passenger growth as the Inland Empire's economic importance has increased.

The logistics boom has driven an extraordinary expansion of commercial construction, with millions of square feet of warehouse space developed annually. This construction activity supports a large workforce of general contractors, electrical contractors, plumbing contractors, and other building trades.

Residential Growth

The Inland Empire's residential growth has been driven primarily by housing affordability -- or more precisely, by the relative affordability of the region compared to the extremely expensive coastal markets of Los Angeles, Orange County, and San Diego. Workers who cannot afford to purchase homes in those markets have migrated to cities like Riverside, Fontana, Rancho Cucamonga, Ontario, Corona, Moreno Valley, and Murrieta, where home prices, while rising, remain significantly lower than in the coastal counties. This pattern has created enormous commuter flows westward on the I-10 and SR-91 corridors, which are among the most congested highways in the nation during peak hours.

The residential construction boom has made the Inland Empire one of the most active homebuilding markets in California, with large-scale master-planned communities developed in previously agricultural or desert areas. New subdivisions in cities like Beaumont, Menifee, Eastvale, and Jurupa Valley have added tens of thousands of homes. The growth in residential development has correspondingly increased demand for home services including HVAC installation and maintenance (critical in the region's extreme summer heat), pool construction and service, landscaping, roofing, and pest control.

Desert Communities

Beyond the urbanized western portions of both counties, the Inland Empire extends into the California desert, encompassing distinct communities with their own economies and character. The Coachella Valley in Riverside County, anchored by Palm Springs, is one of California's premier resort and retirement destinations. The valley's nine cities (Cathedral City, Coachella, Desert Hot Springs, Indian Wells, Indio, La Quinta, Palm Desert, Palm Springs, and Rancho Mirage) have a combined population of approximately 400,000, which swells by hundreds of thousands during the winter "snowbird" season and during major events such as the Coachella Valley Music and Arts Festival, the Stagecoach Country Music Festival, and the BNP Paribas Open tennis tournament at Indian Wells.

The high desert communities of the Victor Valley in San Bernardino County -- including Victorville, Hesperia, Apple Valley, and Barstow -- lie along the Interstate 15 corridor between the San Bernardino Mountains and the Mojave Desert. These communities have experienced substantial population growth as housing seekers move even further from the coast in search of affordability. The desert climate creates extreme temperatures, with summer highs frequently exceeding 110 degrees Fahrenheit, making reliable HVAC systems essential rather than optional.

Higher Education and Healthcare

The Inland Empire's educational infrastructure has expanded significantly to serve the growing population. The University of California, Riverside (UCR), founded in 1954, is a major research university with particular strengths in agricultural science, entomology, and environmental engineering. California State University, San Bernardino and California Baptist University in Riverside are additional major institutions. Loma Linda University, affiliated with the Seventh-day Adventist Church, operates one of the most prestigious medical centers in the western United States and is the region's largest non-government employer.

Healthcare has become one of the Inland Empire's largest employment sectors as the population has grown. Kaiser Permanente, Loma Linda University Health, Riverside Community Health Foundation, and numerous other healthcare systems operate hospitals and medical facilities throughout the region. The healthcare sector's facility needs -- from new hospital construction to medical office buildings -- contribute to the region's commercial construction activity.

Agriculture and Wine

While urbanization has consumed much of the Inland Empire's former agricultural land, significant farming operations continue in both counties. The eastern Coachella Valley remains a major producer of dates (California produces virtually the entire U.S. date crop, centered in the Thermal and Mecca areas), citrus, grapes, and vegetables. The Temecula Valley in southwestern Riverside County has developed into a significant wine region, with approximately 50 wineries producing a range of varietals. The California Wine Authority covers the Temecula Valley and other emerging wine regions in the state.

Challenges and Outlook

The Inland Empire faces several significant challenges as it continues to grow. Air quality remains a persistent concern, as the region is situated downwind of the Los Angeles Basin, and diesel emissions from the logistics industry add to the pollution burden. Transportation infrastructure, particularly the east-west freeway corridors connecting the Inland Empire to the coast, operates at or beyond capacity during peak hours. Water supply constraints in an arid region with a growing population require ongoing investment in conservation, recycling, and imported water infrastructure. Despite these challenges, the Inland Empire's strategic location, available land, growing workforce, and economic diversification position it for continued growth as one of the most significant metropolitan regions in the western United States.