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

	Up to 10	11 to 20	21 to 50	51 to 100	101 to 500	Over 500	TOTAL	
TOTAL	21	31	67	52	61	19	251	
Araba/Álava	7	9	18	9	7	1	51	
Gipuzkoa	8	10	19	18	26	7	88	
Bizkaia	6	12	30	25	28	11	112	
Notes:
Source: Instituto Nacional de EstadÝstica