Evolución  Municipio  Cantabria Año Población Índice Población Indice 1900 54.694 100.0 276.003 100.0 1910 65.046 118.9 302.956 109.8 1920 72.469 132.5 327.669 118.7 1930 85.117 155.6 364.147 131.9 1940 101.793 186.1 393.710 142.6 1950 102.462 187.3 404.921 146.7 1960 118.435 216.5 432.132 156.6 1970 149.704 273.7 467.138 169.3 1981 180.328 329.7 513.115 185.9 1991 196.218 358.8 527.326 191.1 1996 185.410 339.0 527.437 191.1 2000 184.264 336.9 531.159 192.4 2001 180.717 330.4 535.131 193.9 2002 184.661 337.6 542.275 196.5 2003 184.778 337.8 549.690 199.2