A wind pump, also known as a windmill, is a device that pumps water from various water sources, including wells, through the power of wind. The pumped water is typically used to provide clean drinking water, irrigate agricultural fields, or hydrate and feed animals. Wind pumps are also used to alleviate excess water in submerged areas and to produce salt from seawater. They can be found in rural, arid, and semi-arid regions, and are visible in certain areas of Argentina, South Africa, Asia, and the Americas.
The origin of wind pumps dates back to the late 19th century and they were a significant part of the economic development in many remote areas of the United States. Advances in technology continue to be made in this field.