Data referring to the Municipal, Autonomous Community elections and European 9 June 2024
New ECR electors due to having turned 18 since previous elections
Units: New voters

;European Parliament Elections 26-05-2019;Elections to the Spanish Parliament on 23-07-2023;
NATIONAL TOTAL;2,259,621;408,284;
Albacete;18,981;3,305;
Alicante / Alacant;85,648;15,581;
Almería;34,736;6,688;
Araba/Álava;14,423;2,586;
Asturias;38,603;7,038;
Ávila;6,556;1,173;
Badajoz;33,650;6,023;
Balears, Illes;53,905;9,336;
Barcelona;272,994;49,779;
Bizkaia;50,575;9,017;
Burgos;14,778;2,643;
Cáceres;18,096;3,189;
Cádiz;70,275;13,145;
Cantabria;26,420;4,907;
Castellón / Castelló;27,449;4,963;
Ciudad Real;23,539;4,206;
Córdoba;41,085;7,375;
Coruña, A;45,667;8,364;
Cuenca;8,447;1,398;
Gipuzkoa;34,667;6,165;
Girona;37,046;6,852;
Granada;48,211;8,853;
Guadalajara;13,344;2,528;
Huelva;26,892;4,988;
Huesca;9,328;1,594;
Jaén;32,801;5,694;
León;17,224;2,973;
Lleida;19,241;3,535;
Lugo;10,863;1,877;
Madrid;320,584;56,604;
Málaga;83,240;15,529;
Murcia;82,488;15,203;
Navarra;33,174;5,676;
Ourense;10,588;1,888;
Palencia;6,192;1,076;
Palmas, Las;57,288;9,991;
Pontevedra;42,572;7,618;
Rioja, La;14,413;2,559;
Salamanca;13,928;2,383;
Santa Cruz de Tenerife;49,125;8,703;
Segovia;6,580;1,205;
Sevilla;108,903;20,658;
Soria;3,593;613;
Tarragona;39,340;7,331;
Teruel;5,434;963;
Toledo;36,372;6,634;
Valencia / València;126,130;22,857;
Valladolid;23,226;4,275;
Zamora;6,092;1,023;
Zaragoza;43,264;7,744;
Ceuta;5,927;1,021;
Melilla;5,724;955;
Notes:
Source: Instituto Nacional de EstadÝstica