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Southwestern United States facts for kids

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Southwestern United States
American Southwest, the Southwest
Though regional definitions vary from source to source, Arizona and New Mexico (in dark red) are almost always considered the core, modern-day Southwest. The brighter red and striped states may or may not be considered part of this region. The brighter red states (California, Colorado, Nevada, and Utah) are also classified as part of the West by the U.S. Census Bureau, though the striped states are not; Oklahoma and Texas are classified as part of the South.
Though regional definitions vary from source to source, Arizona and New Mexico (in dark red) are almost always considered the core, modern-day Southwest. The brighter red and striped states may or may not be considered part of this region. The brighter red states (California, Colorado, Nevada, and Utah) are also classified as part of the West by the U.S. Census Bureau, though the striped states are not; Oklahoma and Texas are classified as part of the South.
Country United States
States Core:
Arizona
New Mexico
Others, depending on boundaries used:
California
Colorado
Nevada
Utah
Oklahoma
Texas

The Southwestern United States is a special area of the United States. It is also called the American Southwest or just the Southwest. This region includes Arizona and New Mexico. It also has parts of California, Colorado, Nevada, Oklahoma, Texas, and Utah.

Some of the biggest cities here are Phoenix, Las Vegas, El Paso, Albuquerque, and Tucson.

Exploring the Southwest: Geography

ISS View of the Southwestern USA
Panoramic view of the southwestern United States from space.
Chihuahuan Desert from South Rim BIBE
The Chihuahuan Desert has many basins and small mountains.
Agfr desert
A Saguaro cactus in the Sonoran Desert.

The Southwest has amazing landforms!

  • Deserts: A lot of the Southwest is covered in deserts. These include the Mojave, Sonoran, and Chihuahuan Deserts. They are hot and dry. But they are also home to unique plants and animals. You can find cacti and lizards here.
  • Colorado Plateau: This is a large, high desert area. It has flat-topped hills called mesas. It also has steep-sided canyons.
  • Mountains: There are also mountains in the Southwest. The Rocky Mountains are one example. These mountains have cooler temperatures and lots of trees.
  • Grand Canyon: The Grand Canyon is a huge, deep canyon. The Colorado River carved it in Arizona. It is one of the most famous landmarks in the United States! The Grand Canyon is 277 miles long. It is 18 miles wide and one mile deep in some parts!
  • Rivers: The two main rivers in this region are the Colorado River and the Rio Grande. The Rio Grande is 1,885 miles long.

Southwest Weather: Climate

CONM Independence monument 2
Monument Canyon in Colorado.

The Southwest is known for its hot and dry climate.

  • Little Rain: The deserts in the Southwest get very little rain. Some areas get less than 10 inches of rain each year!
  • Hot Summers: Summers are very hot. Temperatures often reach over 100 degrees Fahrenheit (38 degrees Celsius).
  • Mild Winters: Winters are mild. Temperatures rarely drop below freezing.
  • Lots of Sunshine: Many places in the Southwest have over 300 days of sunshine every year!

Plants and Landscapes: Vegetation and Terrain

Curry County Eastern New Mexico 2010
The High Plains in Eastern New Mexico.

The plants in the Southwest are special. You can find different types of yucca plants. There are also many kinds of cacti. These include saguaro cactus, barrel cactus, and prickly pear cactus. Other plants are desert spoon, creosote bush, sagebrush, and greasewood. Many native cacti grow in Nevada, Utah, Colorado, and west Texas.

The landscape has mountains, canyons, and mesas. You can also see flat-topped hills called buttes. There are high basins, plateaus, and desert lands. Some areas also have plains. The entire Southwest is mostly dry or very dry. For example, the Texas Hill Country has dry, rocky hills. South Texas is mostly flat with scrub and bare soil.

Animals of the Southwest: Wildlife

The Southwest has many different kinds of animals.

Birds of the Southwest

This region has many bird species. Over 400 species can be found in the Chiricahua Mountains in Arizona alone.

Mammals of the Southwest

Many mammals live in the Southwest.

Reptiles and Amphibians

The Southwest is home to many snakes, lizards, and turtles.

Fish of the Southwest

Even though the Southwest is dry, some unique fish live in its waters.

  • Unique Fish: The Apache trout and Gila trout are special fish found only here.
  • Desert Pupfish: Pupfishes are small fish that live in isolated ponds. They can survive in very hot water. Many of these fish are endangered. This is because their homes are shrinking due to human water use.

Amazing Places: National Parks, Monuments, and Forests

Grand Canyon Août 2006
Grand Canyon from the South Rim

The Southwestern United States has many famous national parks.

There are also many national monuments and forests to explore!

Big Cities: Cities and Urban Areas

The Southwest has many large cities. Phoenix is one of the biggest cities in the whole country. Albuquerque and Las Vegas have grown very fast.

The largest city areas are around Phoenix (over 5 million people), Las Vegas (over 2.2 million), Tucson (over 1 million), Albuquerque (over 900,000), and El Paso (over 840,000).

The five largest cities of the American Southwest (2020 census)
Josh Jacobs Raiders-WFT DEC2021 (cropped)
Runningback Josh Jacobs of the Las Vegas Raiders NFL team.
T. J. McFarland April 29, 2018 (50121467337)
T. J. McFarland pitching for the Arizona Diamondbacks baseball team.

Top 5 Largest Cities (2020 Census)

Rank City State Population Metro Population
1 Phoenix Arizona 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".1,608,139 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".4,845,832
2 El Paso Texas 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".678,815 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".868,859
3 Las Vegas Nevada 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".641,903 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".2,265,461
4 Albuquerque New Mexico 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".564,559 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".916,528
5 Tucson Arizona 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".542,629 0Expression error: Unrecognized punctuation character ","..Expression error: Unrecognized punctuation character ",".1,043,433

A Look Back: History

The Southwest has a long and interesting history.

  • Native Americans: Native Americans have lived in the Southwest for thousands of years. Some major tribes include the Navajo, Pueblo, Apache, and Hopi. Hundreds of years ago, the Ancestral Pueblo and Hohokam peoples built large houses. They used mud bricks and stone. Some were built on the sides of cliffs. You can still see these ruins today at Mesa Verde National Park.
  • Spanish Explorers: Spanish explorers arrived in the 1500s. They claimed the land for Spain. They built missions and settlements.
  • Mexican Territory: Later, the Southwest became part of Mexico.
  • American Southwest: In the mid-1800s, the United States gained much of the Southwest. This happened after a war with Mexico. The land was acquired under the Treaty of Guadalupe Hidalgo.
  • Statehood: Over time, the territories in the Southwest became states in the United States.

People of the Southwest: Demographics

Many different groups of people live in the Southwest.

  • Hispanic Americans: You can find many Hispanic Americans in every major city. For example, in El Paso (80%) and Albuquerque (47%). Over 60% of the Latino population here are Mexican American.
  • Asian Americans: The largest Asian American groups are in California and Texas. There is also a notable Asian population in Phoenix.
  • Native Americans: The biggest Native American populations are in New Mexico and Arizona. More than 20% of all Native Americans in the U.S. live in the Southwest.

Before 1700, the only permanent Spanish settlements were along the Rio Grande in New Mexico.

Southwest Style: Culture

The Southwest has a unique culture. It is a mix of Native American, Spanish, and Mexican traditions.

  • Food: Southwestern food is known for its bold flavors. It often uses chili peppers. Popular dishes include tacos, enchiladas, and chili.
  • Music: Southwestern music mixes Native American, Spanish, and Mexican styles.
  • Art: Southwestern art includes pottery, weaving, and painting. Many designs are inspired by nature and Native American traditions.
  • Architecture: Southwestern buildings often feature adobe (mud brick) with flat roofs. They also have courtyards. The Spanish brought their Baroque style. This led to a unique style called Churrigueresque.

Places to Visit

The Southwest has many amazing places to visit!

Fun Facts About the Southwest

Images for kids

See also

Kids robot.svg In Spanish: Suroeste de Estados Unidos para niños

  • Pacific Southwest
  • Southwest Conference (for a different division of the US for sports)
  • Water Education Foundation
  • Western United States
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