Zarautz By Amoipat Jan 1, 1900 3.019 Jan 1, 1910 3.127 Jan 1, 1920 3.722 Jan 1, 1930 4.835 Jan 1, 1940 5.547 Jan 1, 1950 6.760 Jan 1, 1960 8.168 Jan 1, 1970 11.764 Jan 1, 1981 18007 Jan 1, 1991 18.007 Jan 1, 2001 21.078 Jan 1, 2010 22.658 Jan 1, 2015 22.915