Municipalities
| Municipality | Population (2025) | km² | per km² |
|---|---|---|---|
| Vitoria-Gasteiz ★ | 260,699 | 277.4 | 940 |
| Llodio | 18,077 | 36.4 | 497 |
| Amurrio | 10,364 | 93.1 | 111 |
| Agurain | 5,189 | 35.5 | 146 |
★ = municipality with a dedicated guide. Municipalities with at least 5,000 inhabitants are listed.