Alabama

Alaska

Arizona

Arkansas

California

Colorado

Connecticut

Delaware

Florida

Georgia

Hawaii

Idaho

Illinois

Indiana

Iowa

Kansas

Kentucky

Louisiana

Maine

Maryland

Massachusetts

Michigan

Minnesota

Mississippi

Missouri

Montana

Nebraska

Nevada

New Hampshire

New Jersey

New Mexico

New York

North Carolina

North Dakota

Ohio

Oklahoma

Oregon

Pennsylvania

Rhode Island

South Carolina

South Dakota

Tennessee

Texas

Utah

Vermont

Virginia

Washington

West Virginia

Wisconsin

Wyoming

None

A map highlights gun ownership in the United States marked by shades of pink. Darker pink indicates higher ownership, with Alaska and states in the central and western U S. Lighter pink indicates lower ownership, primarily in the northeastern states.

Percent of the population that owns one or more firearms by state

US / CA States

North America

World Population Review

Gun Ownership (US)

Percent

British Columbia

A world map of earthquake activity from 2000 to 2019. Circles of varying sizes represent earthquake magnitudes, with larger circles for higher magnitudes. Significant activity is noted in Colombia, Iran, Turkey, Tanzania, and the North Atlantic Ocean.

Time series data showing locations and Richter scale magnitudes of significant earthquakes from 1800 BCE to 2019. Use timeline controls at bottom of the map to display data by time period.

Earthquakes

World

NOAA

Richter scale magnitude

A world map shows human occupation. Red areas were settled before 2500 B C E (Australia, New Guinea). Blue areas by 1200 B C E (Fiji, Guam, Samoa). Purple by 200 B C E (Marshall Islands). Orange by 400 C E (Polynesia). Yellow by 800 C E (New Zealand).

Areas of Australia, New Zealand, and Oceanina settled before 2500 BCE, settled by 1200 BCE, settled by 200 BCE, settled by 400 CE, and settled by 800 CE.

Human Occupation

Australia & Oceania

nature

Saskatchewan

Manitoba

The map shows urban air quality in terms of micrograms of particulate matter per cubic meter of air. For the purposes of this description, the five categories on the map are simplified to less 80 micrograms per cubic meter; between 80 and 200 micrograms per cubic meter; and more than 200 micrograms per cubic meter. In North America, there are several areas with multiple locations where air quality is less than 80 micrograms: in Canada, near Vancouver, British Columbia; in Alberta; and in southern Ontario and Quebec near the Great Lakes and St. Lawrence River. In the United States, areas with air pollution in this range occur in mainly in California and in the Midwest and Northeast. A few scattered locations in Mexico, Central America, and the Caribbean (Jamaica) also have pollution in this range. In South America, air quality less than 80 micrograms per cubic meter occurs in widely scattered locations, such as Caracas, Venezuela; Colombia; Ecuador; Bolivia; northern and central Chile; Buenos Aires, Argentina; and north of Rio de Janeiro, Brazil. Most of Western and Central Europe have air pollution of less than 80 micrograms per cubic meter. Exceptions include Ireland, Portugal, and Scandinavia. (In Russia, air pollution is at this level in Moscow, but east of the Urals in Siberia, there are also sites that are more polluted—between 80 and 200 micrograms. Africa has relatively little air pollution of this type, areas less than 80 micrograms include Liberia, Tanzania, Madagascar, and South Africa (the area around Johannesburg). In Southwest Asia, Turkey, Lebanon, Israel, and Cyprus have multiple sites less than 80 micrograms per cubic meter. However, Iran and the Persian Gulf states (Bahrain, Qatar, the United Arab Emirates) have multiple sites between 80 and 200 micrograms, and Iraq and Bahrain have sites that are higher than 200 micrograms. Apart from Kabul, Afghanistan, which is higher than 200 micrograms per cubic meter, there are no countries in Central Asia that have poor urban air quality according to the criteria used here. In northern Pakistan, India, and Bangladesh, there are cities with poor urban air quality—ranging from 80 to more than 200 micrograms per cubic meter. In southern India, Sri Lanka, and Nepal, pollution levels range from below 80 up to 200 micrograms per cubic meter. In Southeast Asia, pollution in Myanmar, Thailand, Laos, Vietnam, and Indonesia is generally less than 80 micrograms, except in the northern Philippines, where it is between 80 and 200. In the cities of southern and western China, pollution is less than 80 micrograms per cubic meter, except in far western Urumqi, which is between 80 and 200 micrograms. In eastern and northern China urban air pollution increases to between 80 and 200 micrograms. Mongolia has a few locations less than 80 micrograms per cubic meter and others between 80 and 200 micrograms. South Korea has numerous cities with pollution less than 80, whereas in Japan, Tokyo is the only city in this category. In Oceania, only New Zealand is identified as having poor urban air quality, with two locations on the South Island less than 80 micrograms per cubic meter.

Ambient (outdoor) air pollution levels represented by annual mean concentration of particulate matter smaller than 10 (PM₁₀), for cities of the world with more than 100,000 inhabitants

Poor Urban Air Quality

World Health Organization

ug/m3

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

Areas at Risk of Soil Degradation

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

Early Sub-Saharan States and Empires

Earthquake Hazard Areas (U.S.)

Ecological Regions: Level 1 Regions

Ethnic and Cultural Regions

Ethnic Diversity

Ethnic Groups (Iraq and Iran)

European Settlement Expansion

Forest Types, 1900

Former Soviet Republics

Former Warsaw Pact Members

General Area of Sedimentary Formations Favorable to Oil

Geographic Areas Under Dispute

Geology Rock Type

Global Mean Temperature, January

Global Mean Temperature, July

Global Surface Warming: Best-Case Projections

Global Surface Warming: Worst-Case Projections (IPCC)

Global Surface Warming: Worst-Case Projections (NASA)

Global Temperature Change

Groundwater Salinization

Habitat Fragmentation

Herder's Environment

Indigenous Languages

Insolation

Lake Desiccation

Land Cover

Language Families

Languages - Russian Domain

Language Subfamilies

Large Chinese Communities

Latin America, 1650

Latin America, 1830

Lightning Frequency

Major Drainage Basins

Major Foreign Enclaves and Exclaves

Major Hearths

Major Iron-Producing Areas in North America

Major Karst Regions

Major Landforms

Major Manufacturing Regions

Major Soil Orders

Major Territorial Acquisitions (U.S.)

Malaria Risk Areas

Mangrove swamps

Marine Sediment Thickness

Mean Sea-Surface Temperature

Muslim Populations

National Parks

Native American Culture Areas

Natural Gas Supply Areas

Ocean Bathymetry

Ocean Circulation Sinks

Ocean Climate Zones

Oil Shale or Tar Sands

Oil Slicks (1990s)

Original Tillers' Environment

Peak Drought Record, 2016 (U.S.)

Peak Drought Record (U.S.)

Petroleum and Natural Gas Production

Political Units, 1914

Political Units, 1950

Populist Governments Since 2000

	Gun Ownership (US)			Earthquakes									Human Occupation		Poor Urban Air Quality
	Class	Rank	Percent	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Earthquakes	Settled by 400 CE	Settled by 800 CE	Regina	Houston	Philadelphia	Oklahoma City	San Antonio	Boulder	Wichita	Portland	Irvine	Minneapolis	Boise	Winnipeg	Spring Hill	Greeley	St. Louis	Detroit	West Palm Beach	Columbus	Augusta	McAllen	Topeka	Las Cruces	Bakersfield	Oceanside	Reno	Indianapolis	Stockton	Baton Rouge	Glendale	Salinas	Trenton	Aurora	Modesto	Nogales	Rock Island	Fresno	Covington
Alabama		8	56%
Arkansas		6	57%
Connecticut		45	24%
Delaware		41	34%
Iowa		33	44%
Kentucky		12	55%
Maryland		42	30%
Massachusetts		49	15%
Mississippi		7	56%
Missouri		20	49%
Montana		1	66%
Nebraska		29	45%
New Hampshire		36	41%
New York		46	20%
North Carolina		26	46%
North Dakota		10	55%
Oregon		15	51%
Pennsylvania		37	41%
Rhode Island		48	15%
South Carolina		17	49%
South Dakota		9	55%
Tennessee		14	52%
Utah		23	47%
Vermont		16	51%
Virginia		32	45%
Washington		35	42%
West Virginia		5	59%
Wisconsin		28	45%
Wyoming		2	66%
Alaska		3	65%		1
British Columbia
Hawaii		47	15%										2.28%	58.3%
Arizona		24	46%
Florida		40	35%
Idaho		4	60%
Maine		22	47%
Saskatchewan															1
Texas		27	46%													1
Louisiana		13	53%
New Mexico		25	46%
Kansas		19	49%
New Jersey		50	15%														1
Michigan		38	40%
Colorado		30	45%
Nevada		21	47%	1
Georgia		18	49%
Manitoba
Oklahoma		11	55%
California		43	28%	1
Ohio		39	40%
Indiana		31	45%
Minnesota		34	43%
Illinois		44	28%

MapMaster 3

Gun Ownership (US)