Surveys on Water Supply and Sewerage
Water supply and sewerage
Volume of water provided to the public supply network by Autonomous Communities and Cities, source type and period. 
Unidades: thousands of cubic metres

,2020,2018,2016,2014,2013,2012,2011,2010,2009,2008,2007,2006,2005,2004,2003,2002,2001,2000,
Spain,
    Volume of water provided to the public supply network,4.243.555,4.235.947,4.290.577,4.271.966,4.323.475,4.485.264,4.513.818,4.580.645,4.709.261,4.940.976,4.969.041,4.697.857,4.873.202,4.973.463,4.947.008,4.783.127,4.803.471,4.782.096,
    1. Volume of water metered and distributed,3.177.815,3.188.055,3.199.910,3.214.034,3.210.843,3.338.028,3.381.318,3.393.271,3.500.578,3.731.399,3.778.036,3.913.059,4.002.180,4.042.399,4.019.615,3.855.697,3.870.650,3.781.680,
    2. Volume of unmetered water,1.065.740,1.047.892,1.090.647,1.057.932,1.112.632,1.147.236,1.132.500,1.187.374,1.208.683,1.209.577,1.191.005,..,..,..,..,..,..,..,
    - Real water losses,651.826,652.841,701.087,651.061,678.064,710.942,776.896,802.502,791.029,820.398,790.169,784.798,871.022,931.064,927.393,927.430,932.821,1.000.416,
    - Apparent water losses,413.914,395.051,389.560,406.871,434.568,436.294,355.604,384.872,417.654,389.179,400.836,..,..,..,..,..,..,..,
Andalucía,
    Volume of water provided to the public supply network,792.785,747.296,759.283,774.668,758.263,792.450,793.125,802.301,867.854,861.264,879.369,912.082,1.021.494,979.756,935.912,878.851,858.157,820.608,
    1. Volume of water metered and distributed,571.979,544.382,540.794,557.113,547.493,576.176,577.958,586.083,634.697,664.876,674.428,765.376,839.417,784.226,737.567,702.959,694.716,667.280,
    2. Volume of unmetered water,220.806,202.914,218.489,217.555,210.770,216.274,215.167,216.218,233.157,196.388,204.941,..,..,..,..,..,..,..,
    - Real water losses,129.604,123.777,157.749,151.636,142.059,125.439,143.965,136.217,146.889,135.508,127.445,146.706,182.077,195.530,198.345,175.892,163.441,153.328,
    - Apparent water losses,91.202,79.137,60.740,65.919,68.711,90.835,71.202,80.001,86.268,60.880,77.496,..,..,..,..,..,..,..,
Aragón,
    Volume of water provided to the public supply network,143.772,138.598,134.182,136.307,140.605,148.707,136.287,153.825,160.377,165.151,153.218,138.892,152.341,145.919,163.861,160.506,160.117,172.024,
    1. Volume of water metered and distributed,97.701,101.723,102.785,97.052,95.406,106.036,97.449,104.256,108.516,113.256,101.814,111.741,115.627,113.896,125.300,116.030,108.990,110.567,
    2. Volume of unmetered water,46.071,36.875,31.397,39.255,45.199,42.671,38.838,49.569,51.861,51.895,51.404,..,..,..,..,..,..,..,
    - Real water losses,30.386,25.406,22.386,27.086,28.249,26.029,27.575,37.673,36.821,34.251,32.899,27.151,36.714,32.023,38.561,44.476,51.127,61.457,
    - Apparent water losses,15.685,11.469,9.011,12.169,16.950,16.642,11.263,11.896,15.040,17.644,18.505,..,..,..,..,..,..,..,
Asturias, Principado de,
    Volume of water provided to the public supply network,103.915,104.933,120.402,114.172,116.005,115.033,120.245,121.519,123.506,128.172,132.891,121.227,120.886,128.458,116.928,109.460,116.221,108.870,
    1. Volume of water metered and distributed,70.895,76.093,83.733,78.790,74.885,77.558,82.647,86.698,86.457,98.830,103.151,109.556,106.063,103.528,95.943,92.108,93.788,83.173,
    2. Volume of unmetered water,33.020,28.840,36.669,35.382,41.120,37.475,37.598,34.821,37.049,29.342,29.740,..,..,..,..,..,..,..,
    - Real water losses,20.269,15.772,20.994,19.882,23.557,19.545,23.138,22.285,24.453,20.246,19.133,11.671,14.823,24.930,20.985,17.352,22.433,25.697,
    - Apparent water losses,12.751,13.068,15.675,15.500,17.563,17.930,14.460,12.536,12.596,9.096,10.607,..,..,..,..,..,..,..,
Balears, Illes,
    Volume of water provided to the public supply network,111.137,113.624,125.540,111.288,109.278,106.795,101.573,98.771,107.954,113.558,111.967,118.920,114.468,120.070,99.365,93.538,86.852,87.460,
    1. Volume of water metered and distributed,82.743,87.576,94.235,85.556,84.969,81.979,74.509,73.902,81.702,88.749,86.057,95.743,91.401,92.477,77.408,71.792,65.706,67.421,
    2. Volume of unmetered water,28.394,26.048,31.305,25.732,24.309,24.816,27.064,24.869,26.252,24.809,25.910,..,..,..,..,..,..,..,
    - Real water losses,20.049,20.150,22.852,18.579,17.138,18.364,19.051,16.662,17.326,16.622,15.428,23.177,23.067,27.593,21.957,21.746,21.146,20.039,
    - Apparent water losses,8.345,5.898,8.453,7.153,7.171,6.452,8.013,8.207,8.926,8.187,10.482,..,..,..,..,..,..,..,
Canarias,
    Volume of water provided to the public supply network,211.724,212.814,226.846,203.906,220.094,226.587,218.420,202.786,212.011,243.050,237.488,188.311,232.225,219.781,190.554,185.286,171.068,176.905,
    1. Volume of water metered and distributed,141.190,147.470,157.510,144.545,158.521,162.915,159.714,154.426,153.904,180.215,178.337,154.152,186.012,177.253,155.613,150.177,132.590,138.035,
    2. Volume of unmetered water,70.534,65.344,69.336,59.361,61.573,63.672,58.706,48.360,58.107,62.835,59.151,..,..,..,..,..,..,..,
    - Real water losses,51.585,50.896,52.254,41.315,44.394,43.934,46.378,43.040,49.196,51.525,48.881,34.159,46.213,42.528,34.941,35.109,38.478,38.870,
    - Apparent water losses,18.949,14.448,17.082,18.046,17.179,19.738,12.328,5.320,8.911,11.310,10.270,..,..,..,..,..,..,..,
Cantabria,
    Volume of water provided to the public supply network,70.734,72.627,75.597,74.310,72.079,74.601,77.555,75.132,74.916,81.147,77.663,87.182,80.620,77.383,77.712,81.280,82.135,79.578,
    1. Volume of water metered and distributed,49.457,46.548,45.482,48.087,47.767,50.748,50.029,51.180,53.233,59.603,56.060,65.550,64.232,61.406,68.854,65.713,65.920,64.026,
    2. Volume of unmetered water,21.277,26.079,30.115,26.223,24.312,23.853,27.526,23.952,21.683,21.544,21.603,..,..,..,..,..,..,..,
    - Real water losses,14.449,18.156,23.068,18.645,18.745,18.605,21.746,19.880,15.059,14.004,13.827,21.632,16.388,15.977,8.858,15.567,16.215,15.552,
    - Apparent water losses,6.828,7.923,7.047,7.578,5.567,5.248,5.780,4.072,6.624,7.540,7.776,..,..,..,..,..,..,..,
Castilla y León,
    Volume of water provided to the public supply network,249.301,246.976,267.380,298.613,290.043,296.003,310.311,320.536,291.917,292.443,290.794,278.719,296.803,320.497,337.720,323.775,322.689,340.193,
    1. Volume of water metered and distributed,187.076,185.204,192.215,228.279,213.035,212.398,227.831,221.573,200.351,207.324,198.864,230.402,239.186,254.701,286.555,260.522,247.080,264.330,
    2. Volume of unmetered water,62.225,61.772,75.165,70.334,77.008,83.605,82.480,98.963,91.566,85.119,91.930,..,..,..,..,..,..,..,
    - Real water losses,37.464,41.263,42.618,49.374,58.338,50.999,63.510,65.316,62.265,57.030,51.021,48.317,57.617,65.796,51.165,63.253,75.609,75.863,
    - Apparent water losses,24.761,20.509,32.547,20.960,18.670,32.606,18.970,33.647,29.301,28.089,40.909,..,..,..,..,..,..,..,
Castilla-La Mancha,
    Volume of water provided to the public supply network,209.258,203.968,201.973,200.063,213.752,203.867,212.842,205.723,209.883,214.187,220.255,207.653,211.013,206.968,218.511,194.652,208.574,206.325,
    1. Volume of water metered and distributed,143.427,143.020,149.899,147.301,160.503,150.879,156.224,142.725,149.213,158.675,163.626,168.806,173.256,168.897,175.685,159.438,172.358,172.367,
    2. Volume of unmetered water,65.831,60.948,52.074,52.762,53.249,52.988,56.618,62.998,60.670,55.512,56.629,..,..,..,..,..,..,..,
    - Real water losses,44.852,41.749,34.403,38.041,35.642,41.331,50.390,51.028,50.356,41.634,32.670,38.847,37.757,38.071,42.826,35.214,36.216,33.958,
    - Apparent water losses,20.979,19.199,17.671,14.721,17.607,11.657,6.228,11.970,10.314,13.878,23.959,..,..,..,..,..,..,..,
Cataluña,
    Volume of water provided to the public supply network,598.753,602.061,617.843,592.090,616.236,648.762,655.712,672.603,666.180,720.433,776.156,697.384,651.999,691.245,736.346,772.319,780.275,824.762,
    1. Volume of water metered and distributed,454.227,467.324,465.434,457.383,461.504,504.301,509.837,514.872,510.990,547.907,613.298,591.939,541.377,576.186,618.368,632.718,661.254,657.130,
    2. Volume of unmetered water,144.526,134.737,152.409,134.707,154.732,144.461,145.875,157.731,155.190,172.526,162.858,..,..,..,..,..,..,..,
    - Real water losses,85.852,82.484,89.616,66.545,71.950,88.895,94.819,102.525,100.873,108.691,120.341,105.445,110.622,115.059,117.978,139.601,119.021,167.632,
    - Apparent water losses,58.674,52.253,62.793,68.162,82.782,55.566,51.056,55.206,54.317,63.835,42.517,..,..,..,..,..,..,..,
Comunitat Valenciana,
    Volume of water provided to the public supply network,503.786,554.234,486.313,488.956,481.587,506.726,485.022,507.658,527.108,608.573,585.086,546.001,518.726,562.567,543.550,476.998,488.331,526.315,
    1. Volume of water metered and distributed,389.668,407.669,368.952,381.995,364.059,369.422,356.403,363.797,395.768,438.975,421.075,421.497,393.009,422.820,389.367,351.382,363.360,368.606,
    2. Volume of unmetered water,114.118,146.565,117.361,106.961,117.528,137.304,128.619,143.861,131.340,169.598,164.011,..,..,..,..,..,..,..,
    - Real water losses,76.640,99.944,84.734,77.119,85.678,102.978,100.323,113.650,102.445,128.894,131.350,124.504,125.717,139.747,154.183,125.616,124.971,157.709,
    - Apparent water losses,37.478,46.621,32.627,29.842,31.850,34.326,28.296,30.211,28.895,40.704,32.661,..,..,..,..,..,..,..,
Extremadura,
    Volume of water provided to the public supply network,92.347,101.366,112.047,104.601,111.935,115.719,110.105,115.490,113.708,123.973,137.120,136.498,140.350,145.585,136.376,116.740,112.347,98.864,
    1. Volume of water metered and distributed,61.740,67.141,73.179,67.890,69.626,75.522,74.042,78.298,79.683,90.963,98.774,111.253,108.617,114.719,114.108,97.182,95.105,81.855,
    2. Volume of unmetered water,30.607,34.225,38.868,36.711,42.309,40.197,36.063,37.192,34.025,33.010,38.346,..,..,..,..,..,..,..,
    - Real water losses,20.005,24.026,28.478,25.147,26.319,27.736,23.585,24.353,20.075,22.117,20.446,25.245,31.733,30.866,22.268,19.558,17.242,17.009,
    - Apparent water losses,10.602,10.199,10.390,11.564,15.990,12.461,12.478,12.839,13.950,10.893,17.900,..,..,..,..,..,..,..,
Galicia,
    Volume of water provided to the public supply network,242.880,236.572,258.671,243.137,247.402,260.696,240.918,252.478,278.831,291.140,283.261,275.924,282.564,295.173,291.997,313.451,318.596,295.788,
    1. Volume of water metered and distributed,177.892,176.868,187.900,186.405,184.559,189.873,182.743,188.948,197.023,206.568,213.865,229.631,235.015,239.245,236.681,261.066,270.868,255.670,
    2. Volume of unmetered water,64.988,59.704,70.771,56.732,62.843,70.823,58.175,63.530,81.808,84.572,69.396,..,..,..,..,..,..,..,
    - Real water losses,39.235,39.934,55.556,39.769,44.556,48.868,40.723,49.554,40.086,53.280,44.413,46.293,47.549,55.928,55.316,52.385,47.728,40.118,
    - Apparent water losses,25.753,19.770,15.215,16.963,18.287,21.955,17.452,13.976,41.722,31.292,24.983,..,..,..,..,..,..,..,
Madrid, Comunidad de,
    Volume of water provided to the public supply network,500.916,491.816,490.951,504.814,509.232,526.020,553.894,550.816,563.438,561.529,573.119,513.849,562.280,592.053,608.389,562.789,574.261,558.887,
    1. Volume of water metered and distributed,436.216,421.750,418.022,406.951,414.258,429.556,446.421,440.375,450.493,460.768,465.111,450.694,489.181,510.612,522.697,487.808,495.169,482.722,
    2. Volume of unmetered water,64.700,70.066,72.929,97.863,94.974,96.464,107.473,110.441,112.945,100.761,108.008,..,..,..,..,..,..,..,
    - Real water losses,19.846,10.353,13.564,23.194,30.059,31.968,36.743,36.445,44.049,48.365,55.560,63.155,73.099,81.441,85.692,74.981,79.092,76.165,
    - Apparent water losses,44.854,59.713,59.365,74.669,64.915,64.496,70.730,73.996,68.896,52.396,52.448,..,..,..,..,..,..,..,
Murcia, Región de,
    Volume of water provided to the public supply network,128.941,124.763,128.559,125.414,123.666,132.644,134.015,135.131,143.650,148.200,145.630,140.936,140.320,145.789,121.499,124.215,123.985,93.211,
    1. Volume of water metered and distributed,105.007,103.322,103.973,100.916,99.241,106.673,107.581,106.829,113.497,112.893,114.106,120.262,123.073,117.347,102.649,102.426,100.637,73.847,
    2. Volume of unmetered water,23.934,21.441,24.586,24.498,24.425,25.971,26.434,28.302,30.153,35.307,31.524,..,..,..,..,..,..,..,
    - Real water losses,14.657,14.536,16.718,16.953,15.632,18.959,21.387,20.094,20.805,21.890,19.431,20.674,17.247,28.442,18.850,21.789,23.348,19.364,
    - Apparent water losses,9.277,6.905,7.868,7.545,8.793,7.012,5.047,8.208,9.348,13.417,12.093,..,..,..,..,..,..,..,
Navarra, Comunidad Foral de,
    Volume of water provided to the public supply network,71.561,66.192,61.124,60.487,62.056,73.004,77.043,69.909,74.522,69.428,65.571,66.507,64.641,60.252,76.963,68.335,67.624,66.930,
    1. Volume of water metered and distributed,55.632,51.586,49.495,48.367,48.260,55.849,60.083,55.605,58.411,56.060,53.535,57.292,55.298,52.128,63.801,59.694,55.870,57.124,
    2. Volume of unmetered water,15.929,14.606,11.629,12.120,13.796,17.155,16.960,14.304,16.111,13.368,12.036,..,..,..,..,..,..,..,
    - Real water losses,13.218,11.896,9.323,10.641,11.092,11.322,13.171,12.301,11.439,8.957,7.772,9.215,9.343,8.124,13.162,8.641,11.754,9.806,
    - Apparent water losses,2.711,2.710,2.306,1.479,2.704,5.833,3.789,2.003,4.672,4.411,4.264,..,..,..,..,..,..,..,
País Vasco,
    Volume of water provided to the public supply network,150.256,154.531,167.276,184.827,192.243,198.951,229.222,235.356,231.951,247.885,238.194,216.821,231.532,235.659,243.878,261.094,273.271,265.069,
    1. Volume of water metered and distributed,117.282,122.753,136.487,146.602,154.091,154.880,176.180,183.420,187.875,203.974,195.794,189.224,202.899,214.180,213.770,195.723,202.231,187.378,
    2. Volume of unmetered water,32.974,31.778,30.789,38.225,38.152,44.071,53.042,51.936,44.076,43.911,42.400,..,..,..,..,..,..,..,
    - Real water losses,19.802,19.819,14.070,16.475,12.552,23.798,39.251,36.965,34.380,36.007,36.037,27.597,28.633,21.479,30.108,65.371,71.040,77.691,
    - Apparent water losses,13.172,11.959,16.719,21.750,25.600,20.273,13.791,14.971,9.696,7.904,6.363,..,..,..,..,..,..,..,
Rioja, La,
    Volume of water provided to the public supply network,41.781,43.933,36.170,34.245,39.022,37.274,38.848,40.179,41.266,48.623,41.452,35.956,34.404,36.164,33.229,46.957,42.163,45.694,
    1. Volume of water metered and distributed,25.032,27.290,21.173,22.051,23.896,24.366,28.550,27.987,29.478,32.398,30.870,30.081,28.795,29.181,25.594,39.447,35.377,40.405,
    2. Volume of unmetered water,16.749,16.643,14.997,12.194,15.126,12.908,10.298,12.192,11.788,16.225,10.582,..,..,..,..,..,..,..,
    - Real water losses,8.978,7.345,6.574,4.798,6.332,6.481,8.277,7.681,7.426,10.708,6.772,5.875,5.609,6.983,7.635,7.510,6.786,5.289,
    - Apparent water losses,7.771,9.298,8.423,7.396,8.794,6.427,2.021,4.511,4.362,5.517,3.810,..,..,..,..,..,..,..,
Ceuta and Melilla,
    Volume of water provided to the public supply network,19.708,19.643,20.400,20.068,19.977,21.425,18.681,20.432,20.189,22.220,19.807,14.995,16.536,10.144,14.218,12.881,16.805,14.613,
    1. Volume of water metered and distributed,10.651,10.336,8.642,8.751,8.770,8.897,13.117,12.297,9.287,9.365,9.271,9.860,9.722,9.597,9.655,9.512,9.631,9.744,
    2. Volume of unmetered water,9.057,9.307,11.758,11.317,11.207,12.528,5.564,8.135,10.902,12.855,10.536,..,..,..,..,..,..,..,
    - Real water losses,4.935,5.335,6.130,5.862,5.772,5.691,2.864,6.833,7.086,10.669,6.743,5.135,6.814,547,4.563,3.369,7.174,4.869,
    - Apparent water losses,4.122,3.972,5.628,5.455,5.435,6.837,2.700,1.302,3.816,2.186,3.793,..,..,..,..,..,..,..,
Notas:
Up to the year 2006 (included), the questionnaire of the Survey on Water Supply and   Treatment: 
  
 -The variable 'total water volume registered and supplied  by type of user' was asked as 'total water volume   controlled and supplied to users'.   
  
 -The variabe 'Real losses' was asked in the questionnaire with the literal 'Water  volume losses in the distribution network (leaks,breakdowns, ...)'. 
  
 -The variable 'Apparent losses' was  not asked in the survey questionnaire. 
  
 -The variable 'water volume  supplied to the public supply network' was not asked in  the questionnaire. Its estimation was made summing the  variables: 'total water volume controlled and supplied to  users' and 'Water volume losses in the distribution network  (leaks, breakdowns, ...)'. 
  
 This methodological changes must be taken into account when comparing  data and indicators of the 2000-2006 series with  the infomation from 2007 onwards.
Fuente: National Statistics Institute