Market overview
The global water supply market is worth USD 533 bn in 2026 and is forecast to reach USD 828 bn by 2036, growing at a 4.5% CAGR. China is the largest country market and Residential is the largest by customer segment.
| Scope | Treated drinking water delivered to households, businesses and industry by public and private utilities, measured by revenue from water sold. |
|---|---|
| Industry | Services and Utilities |
| Value 2025 | USD 510 bn |
| Value 2026 | USD 533 bn |
| Value 2036 | USD 828 bn |
| CAGR 2026-2036 | 4.5% |
| Volume 2026 | 304,369 million cubic metres |
| Volume 2036 | 351,715 million cubic metres |
| Average price 2026 | USD 1.75 per cubic metre |
| Report price | Starts from USD 1,999 |
| Published | November 2026 |
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Water Supply market size and forecast, 2026-2036
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Year | Market value |
|---|---|
| 2026 | USD 533 bn |
| 2027 | USD 557 bn |
| 2028 | USD 582 bn |
| 2029 | USD 608 bn |
| 2030 | USD 636 bn |
| 2031 | USD 664 bn |
| 2032 | USD 694 bn |
| 2033 | USD 725 bn |
| 2034 | USD 758 bn |
| 2035 | USD 792 bn |
| 2036 | USD 828 bn |
Water Supply market segmentation
By customer
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Residential | 54.0% | 54.9% | USD 288 bn | 4.7% |
| Commercial | 18.0% | 18.3% | USD 95.9 bn | 4.7% |
| Industrial | 20.0% | 19.4% | USD 107 bn | 4.2% |
| Public and other | 8.0% | 7.4% | USD 42.6 bn | 3.7% |
By ownership
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Public utilities | 68.0% | 64.4% | USD 362 bn | 3.9% |
| Private operators | 20.0% | 21.9% | USD 107 bn | 5.4% |
| Public-private partnerships | 12.0% | 13.7% | USD 64.0 bn | 5.9% |
By source
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Surface water | 62.0% | 58.3% | USD 330 bn | 3.9% |
| Groundwater | 30.0% | 29.6% | USD 160 bn | 4.4% |
| Desalinated and recycled | 8.0% | 12.0% | USD 42.6 bn | 8.9% |
By delivery
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Piped municipal supply | 84.0% | 83.0% | USD 448 bn | 4.4% |
| Tanker and packaged supply | 9.0% | 9.0% | USD 48.0 bn | 4.5% |
| Bulk and raw water to industry | 7.0% | 8.0% | USD 37.3 bn | 5.9% |
By tariff structure
| Segment | Share 2026 | Share 2036 | Value 2026 | CAGR 2026-36 |
|---|---|---|---|---|
| Volumetric | 54.0% | 52.0% | USD 288 bn | 4.1% |
| Fixed and standing charges | 26.0% | 24.0% | USD 139 bn | 3.7% |
| Tiered block pricing | 20.0% | 24.0% | USD 107 bn | 6.4% |
Top 25 countries for water supply by revenue
Countries are ranked by revenue earned from sales in the country, not by where the product is made. The ten largest hold 67.0% of 2026 revenue and the 25 countries below together hold 90.7%.
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
| # | Country | Value 2026 | Share 2026 | Value 2036 | CAGR 2026-36 |
|---|---|---|---|---|---|
| 1 | China | USD 95.9 bn | 18.0% | USD 163 bn | 5.5% |
| 2 | United States | USD 85.3 bn | 16.0% | USD 119 bn | 3.4% |
| 3 | India | USD 37.3 bn | 7.0% | USD 76.1 bn | 7.4% |
| 4 | Japan | USD 26.6 bn | 5.0% | USD 32.3 bn | 1.9% |
| 5 | Germany | USD 21.3 bn | 4.0% | USD 28.1 bn | 2.8% |
| 6 | Brazil | USD 21.3 bn | 4.0% | USD 34.8 bn | 5.0% |
| 7 | United Kingdom | USD 21.3 bn | 4.0% | USD 31.5 bn | 4.0% |
| 8 | France | USD 16.0 bn | 3.0% | USD 22.3 bn | 3.4% |
| 9 | Russia | USD 16.0 bn | 3.0% | USD 22.3 bn | 3.4% |
| 10 | Mexico | USD 16.0 bn | 3.0% | USD 25.7 bn | 4.8% |
| 11 | Italy | USD 14.6 bn | 2.7% | USD 21.8 bn | 4.1% |
| 12 | Canada | USD 13.4 bn | 2.5% | USD 19.9 bn | 4.1% |
| 13 | Australia | USD 12.3 bn | 2.3% | USD 18.2 bn | 4.0% |
| 14 | South Korea | USD 11.2 bn | 2.1% | USD 16.6 bn | 4.0% |
| 15 | Spain | USD 10.2 bn | 1.9% | USD 15.2 bn | 4.1% |
| 16 | Indonesia | USD 9.4 bn | 1.8% | USD 17.5 bn | 6.4% |
| 17 | Turkey | USD 8.6 bn | 1.6% | USD 12.7 bn | 4.0% |
| 18 | Egypt | USD 7.8 bn | 1.5% | USD 14.6 bn | 6.4% |
| 19 | Saudi Arabia | USD 7.2 bn | 1.4% | USD 10.7 bn | 4.0% |
| 20 | South Africa | USD 6.6 bn | 1.2% | USD 9.8 bn | 4.1% |
| 21 | Argentina | USD 6.0 bn | 1.1% | USD 8.9 bn | 4.0% |
| 22 | Poland | USD 5.5 bn | 1.0% | USD 8.2 bn | 4.1% |
| 23 | Thailand | USD 5.0 bn | 0.9% | USD 7.5 bn | 4.2% |
| 24 | Vietnam | USD 4.6 bn | 0.9% | USD 8.6 bn | 6.5% |
| 25 | Pakistan | USD 4.2 bn | 0.8% | USD 7.9 bn | 6.5% |
| Rest of world | USD 49.4 bn | 9.3% | USD 74.2 bn | 4.2% |
Source: Compare Market Research analysis.
© 2026 Compare Market Research. All rights reserved.
Competitive landscape
Group 1: Global leaders
- Veolia
- Suez
- American Water Works
- Severn Trent
- United Utilities
- Thames Water
- Aqualia
Group 2: Regional and specialist players
- Sabesp
- Aguas Andinas
- Manila Water
- Anglian Water
- Yorkshire Water
- Essential Utilities
- Rand Water
- Sydney Water
Group 3: Emerging and niche players
- China Water Affairs Group
- Guangdong Investment
- Pennon Group
- Sembcorp Industries
- Chongqing Water Group
- Aguas de Portugal
Research methodology
Every figure on this page comes from the research framework that we apply to all of the markets we cover. The 2025 base for the water supply market is built from the volume sold and the price that buyers pay, and is cross-checked against the size of the wider industry the market belongs to. Where a market can be sized in more than one way, the routes are compared before a figure is set.
The forecast runs year by year from the 2025 base to 2036. Growth in each year reflects demand from the industries that buy the product, adoption of new technology, pricing, regulation and replacement cycles. Volume and price are modelled together, so revenue in each year equals volume multiplied by average price. The 2026 to 2036 compound annual growth rate of 4.5% is calculated from the resulting values.
The market is divided by customer, by ownership, by source, by delivery, by tariff structure. The 25 largest countries are ranked by revenue earned from sales to buyers in each country, not by where the product is made. Segment values and country values add up to the market total in every year, and every report is checked for consistency before it is published.
Companies are placed in three groups: global leaders, regional and specialist players, and emerging and niche players. The groups describe how companies compete in the market. They are not a ranking and they are not market shares.
Our analysts also carry out primary research. Customized reports add interviews with key opinion leaders, such as senior executives, technical specialists and buyers, to test the assumptions behind the numbers for the question being asked.
Frequently asked questions
How big is the water supply market?
The global water supply market is estimated at USD 510 bn in 2025 and USD 533 bn in 2026.
How fast will the water supply market grow?
It is forecast to reach USD 828 bn by 2036, a compound annual growth rate of 4.5% from 2026, an increase of USD 295 bn.
Which country is the largest market for water supply?
China is the largest market by revenue at USD 95.9 bn in 2026, 18.0% of the global total. The three largest countries together hold 41.0%.
Which country is growing fastest?
Among the ten largest markets, India is growing fastest at 7.4% a year from 2026 to 2036.
Which water supply segment is largest?
In the by customer split, Residential is the largest segment with 54.0% of 2026 revenue.
Who are the leading water supply companies?
Global leaders include Veolia, Suez, American Water Works, Severn Trent.
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