Instituto Nacional de Estadística

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Survey on Water Supply and Sewerage. Year 2018

Average household water consumption decreased 2.2%, as compared with 2016, standing at 133 litres per inhabitant per day. The unit value of water decreases 2.0%, standing at 1.91 euros per cubic metre.

Volume of water registered and supplied to users - Year 2018
Indicator Note Value Variation
Households 1 2,271 -1.2
Economic sectors 1 629 -0.6
Municipal consumption and others 1 288 63.0
Average consumption of the households 2 133 -2.2
Supply unit cost 3 1.13 -3.4
Sewerage unit cost 3 0.80 0.0
  • Variation: Percentage over 2014
    • Cubic hectometres
    • Litres per inhabitant and day
    • Euuros per cubic metre
Latest data
Year 2018 Published: 25/11/2020
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The main objective of the statistics on water supply and sewerage is to quantify in physical units and and value in economic magnitudes the activities relating to the so-called integral water cycle, comprising water supply and treatment (sewerage system and filtering of waste water).

Moreover, they provide information necessary for drafting water satellite accounts and meets the demand for this type of data by different users (national and international bodies, companies in the sector and public administrations).

The obtained information is integrated with data provided by INE company economic surveys (industrial and services) in order to gain a fuller picture of the water situation in our economy. Synthesis indicators are also drafted enabling interpretation of results obtained from users.