Data relating to the electoral census
Distribution of CER according to number of voters in municipalities
Units: Municipalities and voters

;Up to 1,000;1,001 to 2,000;2,001 to 5,000;5,001 to 10,000;10,001 to 50,000;Over 50,000;TOTAL;
TOTAL;50,415;50,863;119,879;199,341;548,902;742,901;1,712,301;
Araba/Álava;14,178;13,219;13,093;7,904;14,417;190,280;253,091;
Gipuzkoa;12,299;17,214;52,489;89,441;239,051;146,560;557,054;
Bizkaia;23,938;20,430;54,297;101,996;295,434;406,061;902,156;
Notes:
Source: Instituto Nacional de EstadÝstica