In 2023, the value added of water collection, treatment, and supply in Spain stood at 4.98 billion euros. Over the past decade, the sector experienced variable growth rates, with significant yearly fluctuations. From 2013 to 2016, it showed moderate increases and occasional declines. From 2017 onwards, there was more consistent growth, peaking in 2023 with a marginal increase of 1.12% from the previous year.

Since 2018, the compound annual growth rate (CAGR) has been modest, averaging around 1.12% for the last five years. Year-on-year variations have generally been small, reflecting a stable yet slow expansion.

Future trends to watch for include:

Continuous incremental growth is anticipated with a projected 5-year CAGR of 0.83% until 2028.
Technological innovations in water treatment and increased regulatory measures aiming to improve water quality and efficiency.
Investments in sustainable water infrastructure to adapt to climate change impacts.