What are the characteristics of the population distribution in the United States?

When the population is dense, the railroad is dense, such as the old industrial area such as Detroit, the railroad is more dense.

Americans are moving from the traditional sunbelt of the west and south of Florida, Texas and California to the new sunbelt of the interior, such as Arizona, Nevada, Georgia and Tennessee.

It is mainly distributed in the east and west.

Northeast Industrial Area and West Los Angeles.

The Northeast (Northeast Coastal and Great Lakes regions) is densely populated; The southern and western coasts are more populated; The vast inland area is sparsely populated. The main reasons for the high population density along the Northeast Atlantic coast and the Great Lakes are: abundant coal and iron resources; Long development time; The economy (industry, finance, development) has a good foundation; Convenient water and land transportation.

Most of them are found in the east and west coastal strips and the lower Mississippi River and the Great Lakes. Densely populated areas include the Hawaiian Islands, the Great Lakes region, and the East Coast.

Immigrants or descendants of immigrants currently reside primarily in California, New York, Florida, Texas, New Jersey, and Illinois, accounting for the total, where the California population is a foreign-born New York state. Among the large cities, the states of Los Angeles (investment) account for the foreign-born population, and New York City accounts for the proportion.

Population distribution:1. California 39.54 million.

2. Texas 28.3 million.

3. Florida 20.98 million.

4. New York 19.85 million.

5. Pennsylvania million.

6. Illinois Ivan.

7. Ohio 11.66 million.

8. Georgia 10.43 million.

9. North Carolina 10.27 million.

10. Michigan 9.96 million.

11. New Jersey 9 million.

12. Virginia 8.47 million.

13. Washington 7.4 million.

14. Arizona 7.01 million.

15. Massachusetts 6.86 million.

The U.S. population was 332,915,073 in 2021, an increase from 2020.

As of 2020, whites (including Hispanic whites) numbered 204,277,273, making up of the population, and non-Latino whites made up of the country's population.

The United States has a very diverse racial and ethnic diversity, with Caucasian Americans making up the majority (about 2 3) and the remaining one-third of minorities being mostly concentrated in coastal or metro areas.

The most densely populated state is New Jersey (1,121 mi 2 or 433 km 2). The population is highly urbanized, with the population living in both urban and suburban areas.

Large urban agglomerations are located in the eastern half of the United States (especially the Great Lakes, the Northeast, East, and Southeast) and the western states; mountainous areas, predominantly the Rocky Mountains and Appalachian Mountains, deserts in the southwest, dense boreal forests in the far north, and lower population densities in the central prairie states; Alaska's population is concentrated on its southern coast — specifically the city of Anchorage — while Hawaii's population is concentrated on Oahu.

California and Texas are the most populous states because the average center of the U.S. population has been moving west and south. New York City is the most populous city in the United States, and has been so since at least 1790.

Population centers. There are dozens of major cities in the United States, including 31 "global cities" of all types, 10 of which are in the "alpha" group of global cities: New York, Los Angeles, Chicago, Washington, D.C., Boston, San Francisco, Miami, Philadelphia, Dallas, and Atlanta.

As of 2011, there are 51 metropolitan areas in the United States, each with a population of more than 1,000,000 people. (See U.S. Metropolitan Statistical Area Table.) ）

As of 2011, about 100 million Americans lived in or around urban areas. This means that more than three-quarters of the U.S. population makes up just 3% of the U.S. land area.

The table below shows the population of the top 20 metropolitan areas. Note that the Denver and Baltimore metropolitan areas have over 2.5 million residents, while the San Juan (Puerto Rico) metropolitan area has over 2 million residents.

The population distribution of the United States is mainly concentrated in the coastal areas of the two oceans and the Great Lakes region, Washington, New York, Philadelphia, etc., the political and economic center in the north of the east coast of the United States (the west coast of the Pacific Ocean), Houston and other large cities in the south, the California sunbelt on the west coast of the United States, such as LA, San Francisco, etc., and some large cities in the Great Lakes region such as Chicago.

Reasons: 1. The eastern and western coastal areas of the United States have low terrain, abundant precipitation, sufficient water resources, good geographical environment, and are suitable for human habitation, while the western mountains have high terrain and little precipitation, which is not conducive to human production and survival.

2. The eastern and western coastal areas have developed economies and high living standards, while the western mountainous areas have relatively backward economies.

The population of the United States is about 100 million as of February 2021.

It is the third largest increase in the world after China and India. Non-Hispanic white, Hispanic, African, Asian, mestizo, Native American and Alaska Native, Hawaiian or other Pacific Islander minorities are double-counted within other ethnic groups).

Population age trendsIn the United States, 78% of adults over the age of 18 account for only 22% of the population under the age of 18, and the population distribution of adults is gradually rising, and the elderly population over 65 years old accounts for more than 54 million people in the total population.

It is estimated that by 2030, there will be more than 74 million people over the age of 65 in the United States. According to statistics, there are about 56 children per 1,000 women in the United States, and the birth rate is also **. It can be seen that the U.S. population is aging.

The United States has a population of 100 million. According to the latest census results released by the U.S. Census Bureau, the U.S. population will have 100 million in 2022, an increase from 2010 and the slowest increase since the Great Depression in the 30s of the 20th century. Researchers believe that the 2008 financial crisis was a major reason for the decline in population growth in the United States over the past decade, which led to a decline in the birth rate in the United States and the return of many Mexican immigrants to their hometowns.

Historical Background: More than 40,000 years ago, the ancestors of the Indians passed through Asia to North America, and then to Central and South America; When Columbus arrived in what he considered the New World, there were about 30 million Indians living in the Americas. There are about 1.5 million Indians living in the United States and Canada.

The composition of these indigenous races varies greatly from a genetic, linguistic, and social perspective; It is estimated that in the 15th century there were at least 400 disconnected and distinct cultural formations north of the Rio Grande, with a wide variety of human body types and language families.

There are a total of 50 states in the United States, with a total of 311 larger cities and 3,144 counties.

Major cities are: New York, Los Angeles, California, Chicago, Illinois, Houston, Texas, Philadelphia, Pennsylvania, Phoenix, Arizona, San Diego, California, Dallas, Texas, San Antonio, Texas, Detroit, Michigan.