California Regions

	Los Angeles Los Angeles County and its surrounding area is the second-largest metropolitan region in the United States, with its population estimated at more than 13 million. In addition to one of the financial and business centers of the country, its cultural output has been leading the world's media industry for a long time
	Sacramento Sacramento is the state capital of California. 2.3 million people reside in the greater metropolitan area. This city is the seat of state government and home to pilot projects in transportation.
	San Diego With an estimated population of 1,4 million, San Diego is the eighth-largest city in the United States and second-largest in California. It is part of the San Diego–Tijuana conurbation, the second-largest transborder agglomeration between the U.S. and a bordering country.
	San Francisco The San Francisco Bay Area is located in Northern California, with a population of 7.75 million in 9 counties. This region, especially the "Silicon Valley" in the southern part of the Bay Area, has been recognized as a center of technological innovation, with the headquarters of many prominent companies, such as Google, Apple, and Facebook.

Other U.S. Regions

	Atlanta The Atlanta metropolitan area, with 6 million residents, spans into 8,376 square miles and comprises a financial and manufacturing hub in the Southern U.S. Its primary airport, the Hartsfield-Jackson Atlanta International Airport, served more than 110 million passengers in 2019.
	Boston The greater Boston metropolitan area, northeast of New York, has 4.8 million residents. It is home to many colleges and universities and known for its contribution to higher education and the medical field.
	Chicago The Chicago greater metropolitan area ("Chicagoland") is the third-largest metro in the United States with a population of 9.5 million. Located on Lake Michigan, it has been one of the national hubs for transportation and industry. These days, the region also functions as an important financial center in the world.
	Denver Denver is the central city of Colorado. With its 3-million population in the greater area, it is the second-largest city in the Mountain West U.S. This region has been a core of national transport and aviation.
	Detroit Metro Detroit, which sits next to the Great Lakes, has 4.2 million people and has been one of the industrial centers in the United States for a long time, with the "Big 3" auto manufacturers located in the region. The city has also become a hub for recent artificial intelligence and technological innovations.
	Kansas City The Kansas City metropolitan area spans across the Kansas-Missouri border and has 2 million people. It is called the "Heart of America" as its proximity to the population and geographical center of the U.S. It is sometimes referred to as the "BBQ capital of the world," reflecting its famous meat cuisine, and the "City of Fountains."
	New York The New York metropolitan area is one of the world's financial and technological centers. The population is 18.4 million and the gross metropolitan product of 2 trillion USD, making it the 8th largest economy in the world.
	Salt Lake City Salt Lake City is the capital of Utah, holding approximately 1.2 million population in the metro area. It is located next to the Great Salt Lake and is one of the centers of economy and culture in the west mountain region. It is also known for its strong industry in winter sports, having hosted the 2002 Winter Olympics.
	Seattle Seattle and the surrounding regions are one of the largest metropolitan areas on the West coast with a population of about four million. The region is only 100 miles away from the border to Canada and is a great hub of transport, economy, and culture of the western U.S. for a long time. The aerospace industry that is primarily led by Boeing and its related corporates strongly supports the region's prosperous economy.
	Tampa The Tampa Bay Area is the second-largest metropolitan area in Florida, with a population of 3.2 million. In addition to the traditional tourist industry, this region has become one of the hubs in the country for information technology, electronics, defense, and avionics.
	Washington D.C. The District of Columbia and its greater metropolitan area is the center of politics in the United States. With its population of 6.2 million, the greater metropolitan area spans the states of Maryland, Virginia, and West Virginia.

Regions in Canada

	Toronto The Greater Toronto Area is the largest metropolitan area in Canada, with a population of 6.4 million. The region generates about 20% of the national GDP and is home to 40% of Canadian corporations. The primary industries include financial services, high-tech, movie and television production, design, and tourism.
	Vancouver Metro Vancouver is the western center of the transportation, forestry, and media industries in Canada. The region has a population of 2.5 million and borders Washington State in the United States, so people often travel to and from the region across the border.