DPOH OPERATION  De facto Population figures from 1900 until 1991
De facto population by municipalities from 1900
Gipuzkoa
Unidades: Personas
,1991,1981,1970,1960,1950,1940,1930,1920,1910,1900,
20 Gipuzkoa,676.307,692.782,631.003,478.337,374.040,331.753,302.329,258.557,226.684,195.850,
20001 Abaltzisketa,278,102,129,157,197,178,179,170,159,174,
20002 Aduna,299,327,443,468,482,405,428,360,339,379,
20016 Aia,1.659,1.930,2.381,2.582,2.633,2.446,2.391,2.273,2.375,2.261,
20003 Aizarnazabal,527,499,551,545,501,458,452,405,403,409,
20004 Albiztur,303,322,427,475,609,628,647,729,692,768,
20005 Alegia,1.638,1.701,1.661,1.551,1.250,1.115,1.126,958,902,840,
20006 Alkiza,242,272,341,401,481,466,494,473,471,522,
20906 Altzaga,88,"","",248,230,204,207,192,182,178,
20007 Altzo,320,333,405,408,389,387,425,427,430,454,
20008 Amezketa,981,1.138,1.307,1.463,1.293,1.211,1.067,1.163,1.209,1.193,
20009 Andoain,15.269,16.187,11.818,7.060,4.647,3.854,3.710,3.322,2.850,2.866,
20010 Anoeta,1.795,1.702,1.043,598,436,381,384,322,316,329,
20011 Antzuola,2.001,2.275,2.183,1.747,1.592,1.476,1.537,1.544,1.543,1.480,
20012 Arama,141,175,206,205,144,155,147,136,113,124,
20013 Aretxabaleta,6.071,5.928,5.235,3.398,2.674,2.441,2.271,1.831,1.724,1.860,
20055 Arrasate/Mondragón,25.213,26.045,22.421,14.148,10.014,8.645,7.720,5.915,4.706,3.713,
20014 Asteasu,1.191,1.308,1.533,1.288,1.511,1.389,1.245,1.220,1.218,1.161,
20903 Astigarraga,3.232,"","","","",1.796,1.697,1.502,1.399,1.285,
20015 Ataun,1.693,1.959,2.307,2.884,2.535,2.448,2.446,2.581,2.658,2.663,
20017 Azkoitia,10.283,10.946,10.278,8.384,7.714,7.632,7.557,6.675,5.883,5.506,
20018 Azpeitia,13.170,12.958,10.797,9.400,8.991,8.024,7.848,6.941,6.692,6.066,
20904 Baliarrain,99,"","",180,193,191,186,210,194,216,
20019 Beasain,12.089,12.112,10.095,7.610,5.423,4.986,5.260,3.775,2.973,1.932,
20020 Beizama,150,171,292,441,514,536,496,565,598,634,
20021 Belauntza,287,327,402,373,299,239,266,253,261,248,
20022 Berastegi,924,942,1.058,1.124,1.090,1.000,1.150,1.087,1.150,1.173,
20074 Bergara,15.121,15.759,15.148,13.162,10.373,9.499,9.307,7.345,6.761,6.196,
20023 Berrobi,592,604,622,410,360,412,378,356,345,338,
20024 Bidania-Goiatz,408,524,731,"","","","","","","",
20029 Deba,5.000,4.916,4.489,4.041,4.013,3.514,3.394,3.476,3.161,2.968,
20069 Donostia/San Sebastián,176.019,175.576,165.829,135.149,113.776,103.979,78.432,61.774,49.008,37.812,
20030 Eibar,32.108,36.494,37.073,31.725,16.318,11.772,12.874,11.888,10.121,6.583,
20031 Elduain,230,276,323,370,346,339,340,313,289,381,
20033 Elgeta,974,1.152,1.222,982,876,818,997,2.322,2.167,2.169,
20032 Elgoibar,11.359,13.738,13.459,10.847,6.913,5.683,5.239,4.863,4.596,4.317,
20067 Errenteria,41.163,45.789,34.369,18.642,12.784,10.106,8.973,6.956,5.527,4.081,
20066 Errezil,630,723,1.162,1.407,1.377,1.364,1.447,1.513,1.498,1.530,
20034 Eskoriatza,3.821,4.202,3.903,2.574,2.574,2.233,2.123,1.929,1.899,1.901,
20035 Ezkio-Itsaso,530,583,764,"","","","","","","",
20038 Gabiria,428,492,645,665,838,792,864,894,844,836,
20037 Gaintza,115,124,213,275,309,356,309,334,364,390,
20039 Getaria,2.348,2.407,2.633,2.225,2.045,1.918,1.879,1.847,1.604,1.351,
20040 Hernani,18.524,30.272,23.338,13.080,8.577,7.093,6.282,5.405,4.326,3.672,
20041 Hernialde,281,264,327,289,354,322,347,346,318,331,
20036 Hondarribia,13.974,11.276,10.471,8.581,7.363,5.994,6.181,5.570,5.175,4.345,
20042 Ibarra,4.513,4.381,3.100,1.538,1.321,1.120,934,904,790,725,
20043 Idiazabal,1.975,2.064,1.995,2.055,1.712,1.156,1.326,1.430,1.424,1.423,
20044 Ikaztegieta,375,699,795,"","","","","","","",
20045 Irun,53.861,53.445,45.060,29.814,19.956,14.368,17.670,14.161,12.120,9.912,
20046 Irura,637,689,856,674,623,521,519,433,383,399,
20047 Itsasondo,638,832,1.099,908,781,727,734,623,569,525,
20048 Larraul,133,176,230,283,251,272,280,261,272,285,
20902 Lasarte-Oria,18.165,"","","","","","","","","",
20049 Lazkao,5.070,5.099,4.214,2.960,1.817,1.657,1.588,1.314,1.176,947,
20050 Leaburu,559,626,833,"","","","","","","",
20051 Legazpi,9.313,10.558,9.716,6.343,4.010,2.763,1.898,1.382,1.293,1.246,
20052 Legorreta,1.463,1.690,1.714,1.317,977,798,822,736,718,652,
20068 Leintz-Gatzaga,188,207,293,408,392,353,394,424,473,503,
20053 Lezo,5.256,5.372,4.057,3.296,2.447,2.143,2.062,1.423,1.263,1.198,
20054 Lizartza,690,815,900,860,692,576,570,609,549,576,
20901 Mendaro,1.381,"","","","","","","","","",
20057 Mutiloa,180,233,297,381,415,442,432,482,583,524,
20056 Mutriku,4.466,5.244,5.090,4.360,4.085,5.097,3.832,3.503,3.571,3.520,
20063 Oiartzun,8.393,7.664,6.704,5.346,5.273,5.579,4.378,4.200,4.268,3.960,
20058 Olaberria,1.078,1.430,1.528,999,497,457,529,564,521,486,
20059 Oñati,10.264,10.770,10.645,8.432,7.225,6.699,6.662,6.236,6.149,5.975,
20076 Ordizia,8.966,9.525,9.380,6.800,4.796,4.335,4.423,3.059,2.318,1.421,
20905 Orendain,170,"","",439,412,475,399,444,451,408,
20060 Orexa,78,92,144,198,172,175,183,192,203,214,
20061 Orio,4.247,4.358,3.893,2.890,2.374,2.065,1.926,1.773,1.449,1.268,
20062 Ormaiztegi,1.196,1.246,1.189,1.004,767,716,684,631,633,639,
20064 Pasaia,18.203,20.696,21.130,15.036,11.773,10.024,7.519,4.772,3.571,2.856,
20070 Segura,1.318,1.417,1.632,1.748,1.267,1.300,1.293,1.344,1.357,1.278,
20065 Soraluze-Placencia de las Armas,4.642,5.423,5.639,4.906,3.491,3.019,3.007,2.624,2.330,2.108,
20071 Tolosa,18.085,18.894,18.766,16.281,14.971,13.583,12.487,11.273,9.747,8.111,
20072 Urnieta,4.372,12.463,10.286,3.548,2.647,2.368,2.339,2.097,2.192,2.084,
20077 Urretxu,6.025,6.430,6.077,4.877,2.804,2.187,1.727,1.510,1.151,1.110,
20073 Usurbil,5.373,5.841,5.519,3.122,2.620,2.302,2.042,1.925,1.922,1.831,
20075 Villabona,5.295,5.228,3.817,2.712,2.281,1.946,1.880,1.787,1.601,1.529,
20078 Zaldibia,1.518,1.776,1.988,1.920,1.594,1.622,1.451,1.413,1.261,1.205,
20079 Zarautz,18.154,15.071,11.642,8.272,6.729,5.251,4.786,3.579,3.150,2.838,
20025 Zegama,1.270,1.540,1.752,2.043,1.857,1.882,1.803,1.870,2.007,2.055,
20026 Zerain,227,240,328,359,407,489,452,516,560,552,
20027 Zestoa,3.294,3.778,4.384,4.201,3.552,3.106,3.128,2.998,3.009,2.661,
20028 Zizurkil,2.733,2.827,1.787,1.524,1.480,1.290,1.245,1.174,1.024,902,
20081 Zumaia,8.076,7.700,6.303,4.493,3.541,3.434,3.144,2.900,2.668,2.404,
20080 Zumarraga,10.899,11.413,11.854,6.897,3.490,3.210,2.480,2.086,1.942,2.034,
20999 Población en municipios desaparecidos de Guipúzcoa,"","",333,3.531,3.503,3.361,8.599,7.745,6.573,5.851,
Notas:
For the elaboration of the DPO the relation of is taken as a reference 1981 Census Municipalities. The population reflected in the disappeared Municipalities is included between the 1900 to 1970 censuses. 
Fuente: