Abbeville

Acadia

Accomack

Adair

Adams

Addison

Adjuntas

Aguada

Aguadilla

Aguas Buenas

Aibonito

Aiken

Aitkin

Alachua

Alamance

Alameda

Alamosa

Albany

Albemarle

Alcona

Alcorn

Aleutians East Borough

Aleutians West Census Area

Alexander

Alexandria City

Alfalfa

Alger

Allamakee

Allegan

Allegany

Alleghany

Allegheny

Allen

Allendale

Alpena

Alpine

Amador

Amelia

Amherst

Amite

Añasco

Anchorage Municipality

Anderson

Andrew

Andrews

Androscoggin

Angelina

Anne Arundel

Anoka

Anson

Antelope

Antrim

Apache

Appanoose

Appling

Appomattox

Aransas

Arapahoe

Archer

Archuleta

Arecibo

Arenac

Arkansas

Arlington

Armstrong

Aroostook

Arroyo

Arthur

Ascension

Ashe

Ashland

None

Vacant housing units in the U.S.: The highest vacant housing regions (dark blue) are in Alaska, parts of Montana, and Wyoming. Most regions in the Midwest (Illinois, Indiana, Ohio) and Southeast (Georgia, Florida) have lower vacancy rates (light blue).

Percentage of housing in the United States that is vacant, excluding seasonal, recreational, or occasional use

US Counties

North America

U.S. Census Bureau

Vacant Housing Units (U.S.)

Benin

Burkina Faso

Cabo Verde

Côte d'Ivoire

Gambia

Ghana

Guinea

Guinea-Bissau

Liberia

Mali

Niger

Nigeria

Senegal

Sierra Leone

Togo

Sub-Saharan Africa

A map highlights E C O W A S members highlighted in blue. Some of the Countries are Mali, Niger, Senegal, Nigeria, Guinea, and Côte d'Ivoire.

Member states of the Economic Community of West African States, an organization founded in 1975 to promote economic integration among its members

Countries

ECOWAS

Economic Community of West African States (ECOWAS) Members

Alaska

Arizona

Utah

Yukon

Northwest Territories

District of Columbia

Florida

Idaho

New Hampshire

Rhode Island

Vermont

Washington

Wyoming

Nunavut

Montana

Maine

North Dakota

Kentucky

Nova Scotia

Virginia

Delaware

Prince Edward Island

Saskatchewan

Mississippi

West Virginia

Nebraska

Texas

Missouri

Louisiana

Hawaii

North Carolina

Oregon

New Brunswick

Alabama

New Mexico

Kansas

Wisconsin

British Columbia

Newfoundland and Labrador

New Jersey

South Carolina

Michigan

Alberta

Connecticut

Pennsylvania

Colorado

Nevada

Massachusetts

Georgia

New York

Maryland

Québec

Manitoba

Oklahoma

Tennessee

Ontario

California

South Dakota

Ohio

Indiana

Minnesota

Iowa

Illinois

A map illustrates areas at risk of soil degradation worldwide, categorized by serious concern, some concern, stable terrain, and non-vegetated land.

Levels of concern for there to be a decline in soil quality caused by its improper use, usually for agricultural, pastoral, industrial, or urban purposes.

Areas at Risk of Soil Degradation

The map shows areas at risk of soil degradation using different colors. Areas of Serious Concern (light pink): North America: Great Plains, southwestern deserts, and Mississippi Valley. Central America: Most of the land. South America: Lands along the Andes mountains, parts of interior and coastal Brazil. Europe: Mostly in Eastern Europe. Africa: Near the Mediterranean in North Africa; lands of the Sahel along the southern border of the Sahara; in and around Nigeria in West Africa; the island of Madagascar; smaller patches in East Africa and southern Africa. Asia: Central and eastern China, much of mainland Southeast Asia, the islands of Borneo, and the Philippines. Australia: Southeast Australia has a small area of serious concern. Areas of Some Concern (light purple): Found in scattered regions across North America, South America, Europe, Africa, and Asia. Stable Terrain (light blue): These areas include parts of North America mostly in Canada, South America in parts of Brazil, and in parts of Europe, Africa, and Asia. Nonvegetated Land (dark blue): Predominantly in desert regions such as the Sahara, Central Asia, and parts of Australia.

World

Geosystems: Intro to Physical Geography

Acid Rain

African Languages

Agricultural Regions

Anthropogenic Biomes

Approximate Form and Extent of Outcrop of Carbonate Rocks

Aquifers: Distribution and Recharge

Areas Affected by Acid Rain

Areas Affected by Trypanosomiasis

Average Annual Precipitation

Average Annual Snowfall

Average Distribution of Dew Point Temperatures, January

Average Distribution of Dew Point Temperatures, July

Average Number of Hail Storms

Average Number of Tornado Incidences per Year (U.S.)

Bantu Migrations

Barren or Sparsely Vegetated Areas

Biomes

British Conquest of India

British Empire, Early 1920s

Caribbean Languages

Chinese Empires

Climate Zones

Cold Front

Colonial Possessions, 1914

Continental Shelf

Core Diamond Mining Areas

Days with Heavy Fog

Deforestation: Net Loss, 2000-2015

Deserts and Desertification Risk

Distribution of Calcium Carbonate in Modern Surface Sediments

Distribution of Neritic (Nearshore) and Pelagic (Open Ocean) Sediments

Drought Risk

Drug Cultivation and Production Regions

Vacant Housing Units (U.S.)			Economic Community of West African States (ECOWAS) Members	Areas at Risk of Soil Degradation
Class	Rank	Value	Value	Areas of serious concern	Areas of some concern	Stable terrain	Nonvegetated land

				23.0%	35.0%	31.0%	10.1%

MapMaster 3

Vacant Housing Units (U.S.)