The population connected to wastewater treatment in Spain experienced fluctuations over the historical period of 2013 to 2023. The year-on-year variation and CAGR highlight periods of both decline and modest growth. In 2023, the population connected to wastewater treatment stood at 41.68 million units, reflecting a slight decrease from the previous years. After reaching a peak in 2019, there has been a gradual decline.
Key trends observed:
- 2013-2015 saw a mix of declines and growth with an overall negative CAGR.
- Continuous but minor growth from 2015 to 2019 signified stability.
- Post-2019, a slight decline in connection rates indicated a change in trend.
- The last two years displayed a reduction in connections at a rate of -0.48% annually.
Future trends to watch:
- The forecast projects a continued decline in the connected population up to 2028 with a negative CAGR of -0.38%.
- Increasing urbanization and investment in infrastructure may counterbalance this trend.
- Government policies and environmental regulations will also play a crucial role in shaping future connectivity rates.
