How big is the Water Desalination Market | Industry Trends & Growth Insights 2025

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Code: MTA9682

Publication Date: Oct 2025

What is the size of Water Desalination Market?

According to 6Wresearch internal database and industry insights, the Global Water Desalination Market was valued at USD 3800 Billion in 2024 and is expected to reach USD 6200 Billion by 2031, growing at a compound annual growth rate of 4.90% during the forecast period (2025-2031).

The main drivers of this growth are the rising scarcity of freshwater resources, increasing demand from industrial and municipal sectors, and continuous technological advancements in reverse osmosis and membrane filtration. Expanding urban populations and water-stressed regions are accelerating investments in desalination projects worldwide.

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Growth Factors for Water Desalination Industry

Growing freshwater scarcity across arid and semi-arid regions.
Expanding municipal demand for potable water supply.
Rising industrial applications, including power, oil and gas, and manufacturing.
Technological advancements are reducing desalination energy consumption.
Government investments in infrastructure to ensure a sustainable water supply.

Water Desalination Market Trends

Trends in the Water Desalination Market indicate a strong move toward the use of reverse osmosis technologies, given their efficiency and the associated costs. Hybrid desalination plants that use both thermal processes and membrane-designed processes are also gaining popularity. Renewable energy-powered desalination systems are becoming more common to help reduce operational costs and carbon footprints. Modular and containerised units are emerging to support small- and mid-scale applications. Also, the integration of automation and digital monitoring is helping to improve the overall efficiency of plants, while an increased presence of private sector players utilising long-term contracts continues to change the dynamics in the industry.

Emerging Developments in the Water Desalination Market

The Water Desalination Market developments include many new investments in large-scale projects, especially in water-scarce regions. Companies are starting to design next-generation membranes with improved efficiencies, durability and a longer useful life. Solar-powered and wind-powered desalination units have also received increased attention due to their sustainable operations. Public-private partnerships are becoming more common due to the large capital investments needed for projects. Finally, there have been some innovative developments in brine management and resource recovery to help reduce environmental consequences, which can result in considerable opportunities for sustainable desalination.