Information of the postal vote Postal vote by municipalities with more than 20,000 voters and data. Units: Postal vote Postal vote processed voters percentage Vitoria-Gasteiz (Álava) 8,144 183,634 4.43 Eibar (Guipúzcoa) 1,323 24,837 5.33 Irun (Guipúzcoa) 1,555 47,747 3.26 Errentería (Guipúzcoa) 938 33,648 2.79 Donostia-San Sebastian (Guipúzcoa) 9,300 153,852 6.04 Barakaldo (Vizcaya) 3,044 83,876 3.63 Basauri (Vizcaya) 1,607 40,401 3.98 Bilbao (Vizcaya) 18,353 302,021 6.08 Durango (Vizcaya) 938 20,780 4.51 Galdakao (Vizcaya) 831 24,544 3.39 Getxo (Vizcaya) 4,715 68,953 6.84 Leioa (Vizcaya) 855 23,216 3.68 Portugalete (Vizcaya) 1,939 45,312 4.28 Santurtzi (Vizcaya) 1,591 41,042 3.88 Sestao (Vizcaya) 876 28,065 3.12 Notes: Source: National Statistics Institute