View of the Pacific Ocean from the Cotoni-Coast Dairies unit of the California Coast National Monument.
How much natural water is there?
Earth is estimated to hold about 1,386,000,000 cubic kilometers of water. The breakdown of where all that water resides is estimated as follows:
- Oceans (saline) 1,338,000,000 cubic kilometers
- Ice caps and glaciers (fresh) 24,064,000 cubic kilometers
- Groundwater (fresh and saline) 23,400,000 cubic kilometers
- Streams, lakes, swamps (fresh) 104,590 cubic kilometers
- Lakes (saline) 85,400 cubic kilometers
- Other--soil, atmosphere, biosphere (fresh) 330,520 cubic kilometers
Learn More: How Much Water is There on Earth?
Related
How much water is used by people in the United States?
What is the Earth's "water cycle?"
Is saline water used for anything?
How do we benefit from USGS streamgages?

View of the Pacific Ocean from the Cotoni-Coast Dairies unit of the California Coast National Monument.
This diagram, released in 2022, depicts the global water cycle. It shows how human water use affects where water is stored, how it moves, and how clean it is. This diagram is available in English and Spanish.
This diagram, released in 2022, depicts the global water cycle. It shows how human water use affects where water is stored, how it moves, and how clean it is. This diagram is available in English and Spanish.
This image shows blue spheres representing relative amounts of Earth's water in comparison to the size of the Earth. Are you surprised that these water spheres look so small? They are only small in relation to the size of the Earth.
This image shows blue spheres representing relative amounts of Earth's water in comparison to the size of the Earth. Are you surprised that these water spheres look so small? They are only small in relation to the size of the Earth.
Sunrise over the Atlantic near Matanzas Inlet, FL. USGS was recovering seafloor platforms deployed to quantify storm effects on coastal inlet dynamics.
Sunrise over the Atlantic near Matanzas Inlet, FL. USGS was recovering seafloor platforms deployed to quantify storm effects on coastal inlet dynamics.
The quality of the water we drink can potentially impact our health. The USGS has several programs and cooperative projects that characterize the quality of selected rivers and aquifers used as sources of drinking water to community water systems in the United States.
The quality of the water we drink can potentially impact our health. The USGS has several programs and cooperative projects that characterize the quality of selected rivers and aquifers used as sources of drinking water to community water systems in the United States.

--the increasing need for food production, cropland areas, and agricultural water
by Prasad Thenkabail, Research Geographer
--the increasing need for food production, cropland areas, and agricultural water
by Prasad Thenkabail, Research Geographer
Waterfall in Appalachian Forest
Waterfall in Appalachian Forest
The National integrated water availability assessment, water years 2010–20
Water supply in the conterminous United States, Alaska, Hawaii, and Puerto Rico, water years 2010–20
Water use across the conterminous United States, water years 2010–20
Where is the water? Suburban [poster]
Water priorities for the Nation—U.S. Geological Survey Integrated Water Prediction science program
Simulation of water availability in the Southeastern United States for historical and potential future climate and land-cover conditions
U.S. Geological Survey (USGS) water-use websites
Continuing progress toward a national assessment of water availability and use
Estimated use of water in the United States in 2015
The water cycle for kids
Water Budgets: Foundations for Effective Water-Resources and Environmental Management
Ground water and surface water: A single resource
Related
How much water is used by people in the United States?
What is the Earth's "water cycle?"
Is saline water used for anything?
How do we benefit from USGS streamgages?

View of the Pacific Ocean from the Cotoni-Coast Dairies unit of the California Coast National Monument.
View of the Pacific Ocean from the Cotoni-Coast Dairies unit of the California Coast National Monument.
This diagram, released in 2022, depicts the global water cycle. It shows how human water use affects where water is stored, how it moves, and how clean it is. This diagram is available in English and Spanish.
This diagram, released in 2022, depicts the global water cycle. It shows how human water use affects where water is stored, how it moves, and how clean it is. This diagram is available in English and Spanish.
This image shows blue spheres representing relative amounts of Earth's water in comparison to the size of the Earth. Are you surprised that these water spheres look so small? They are only small in relation to the size of the Earth.
This image shows blue spheres representing relative amounts of Earth's water in comparison to the size of the Earth. Are you surprised that these water spheres look so small? They are only small in relation to the size of the Earth.
Sunrise over the Atlantic near Matanzas Inlet, FL. USGS was recovering seafloor platforms deployed to quantify storm effects on coastal inlet dynamics.
Sunrise over the Atlantic near Matanzas Inlet, FL. USGS was recovering seafloor platforms deployed to quantify storm effects on coastal inlet dynamics.
The quality of the water we drink can potentially impact our health. The USGS has several programs and cooperative projects that characterize the quality of selected rivers and aquifers used as sources of drinking water to community water systems in the United States.
The quality of the water we drink can potentially impact our health. The USGS has several programs and cooperative projects that characterize the quality of selected rivers and aquifers used as sources of drinking water to community water systems in the United States.

--the increasing need for food production, cropland areas, and agricultural water
by Prasad Thenkabail, Research Geographer
--the increasing need for food production, cropland areas, and agricultural water
by Prasad Thenkabail, Research Geographer
Waterfall in Appalachian Forest
Waterfall in Appalachian Forest