Water Facts

Interesting water facts

We have provided you with many interesting water facts that we hope you will enjoy. 

  • You can refill an 8 oz. glass of water approximately 15,000 times for the same cost as a six pack of soda pop. And, water has no sugar or caffeine.
  • Ninety-seven percent of the earth’s water is saltwater in oceans and seas. Of the 3% percent that is freshwater, only 1% percent is available for drinking — the remaining 2% is frozen in the polar ice caps.
  • People need about 2.5 quarts of water a day (from drinking or eating) to maintain good health.
  • A person can live without water for approximately one week, depending upon the conditions.
  • While usage varies from community to community and person to person, on average, Americans use 183 gallons of water a day for cooking, washing, flushing, and watering purposes. Also, the average family turns on the tap between 70 and 100 times daily.
  • Water makes up almost sixty six percent of the human body, and seventy percent of the brain.
  • Water is unusual in that the solid form, ice, is less dense than the liquid form, which is why ice floats.
  • Americans drink more than 1 billion glasses of water per day.


  • Currently, 600,000 miles of our rivers lie behind an estimated 60,000 to 80,000 dams.
  • The United States has 3,500,000 miles of rivers. The 600,000 miles of rivers lying behind dams amounts to fully 17% of our river mileage.
  • The Missouri River is about 2,540 miles long, making it the longest river in North America. Additionally, the Nile is the longest river in the world at 4,132 miles as it travels northward from its remote headwaters in Burundi to the Mediterranean Sea.
  • The 8 longest rivers in the U.S. are (in descending order) Missouri, Mississippi, Yukon, St. Lawrence (if you count the Great Lakes and its headwaters as one system), Rio Grande, Arkansas, Colorado, Ohio.
  • Water covers nearly three-fourths of the earth’s surface.
  • Most of the earth’s surface water is permanently frozen or salty.
  • Over 90% of the world’s supply of fresh water is located in Antarctica.
  • Saline water can be desalinated for use as drinking water by going through a process to remove the salt from the water. The process costs so much that it isn’t done on a very large scale. The cost of desalting sea water in the U.S. ranges from $1 to $16 per 1000 gallons.
  • The overall amount of water on our planet has remained the same for two billion years.
  • The United States consumes water at twice the rate of other industrialized nations.
  • 1.2 billion — Number of people worldwide who do not have access to clean water.
  • Also, 6.8 billion gallons of water are flushed down toilets by Americans every day.
Interesting water facts person can live without water one week