| Evolución de la población desde 1900 hasta 2023 | |||
| Año | Hombres | Mujeres | Total |
| 2023 | 165.600 | 170.708 | 336.308 |
| 2022 | 164.410 | 169.498 | 333.908 |
| 2021 | 164.299 | 169.186 | 333.485 |
| 2020 | 163.924 | 168.950 | 332.874 |
| 2019 | 162.685 | 167.419 | 330.104 |
| 2018 | 161.464 | 166.299 | 327.763 |
| 2017 | 160.464 | 164.786 | 325.250 |
| 2016 | 159.415 | 163.559 | 322.974 |
| 2015 | 158.890 | 162.651 | 321.541 |
| 2014 | 158.636 | 161.815 | 320.451 |
| 2013 | 158.942 | 161.257 | 320.199 |
| 2012 | 159.551 | 161.015 | 320.566 |
| 2011 | 159.673 | 160.173 | 319.846 |
| 2010 | 158.892 | 158.845 | 317.737 |
| 2009 | 157.766 | 157.514 | 315.280 |
| 2008 | 155.474 | 155.470 | 310.944 |
| 2007 | 153.043 | 153.432 | 306.475 |
| 2006 | 150.979 | 151.502 | 302.481 |
| 2005 | 149.174 | 149.656 | 298.830 |
| 2004 | 146.678 | 147.625 | 294.304 |
| 2003 | 144.583 | 146.163 | 290.746 |
| 2002 | 142.224 | 144.425 | 286.650 |
| 2001 | 141.477 | 143.720 | 285.198 |
| 2000 | 140.803 | 142.992 | 283.795 |
| 1999 | 140.300 | 142.336 | 282.637 |
| 1998 | 139.737 | 141.665 | 281.403 |
| 1997 | 139.164 | 140.965 | 280.128 |
| 1996 | 138.542 | 140.355 | 278.897 |
| 1995 | 138.057 | 139.738 | 277.795 |
| 1994 | 137.538 | 139.099 | 276.638 |
| 1993 | 136.887 | 138.325 | 275.212 |
| 1992 | 136.195 | 137.531 | 273.726 |
| 1991 | 135.643 | 136.856 | 272.499 |
| 1990 | 135.596 | 136.445 | 272.041 |
| 1989 | 135.350 | 135.950 | 271.300 |
| 1988 | 135.050 | 135.247 | 270.297 |
| 1987 | 134.573 | 134.553 | 269.125 |
| 1986 | 134.044 | 133.788 | 267.832 |
| 1985 | 133.367 | 132.898 | 266.265 |
| 1984 | 132.531 | 131.878 | 264.410 |
| 1983 | 131.560 | 130.786 | 262.346 |
| 1982 | 130.477 | 129.582 | 260.059 |
| 1981 | 129.072 | 128.033 | 257.105 |
| 1980 | 126.379 | 125.471 | 251.850 |
| 1979 | 123.702 | 122.737 | 246.439 |
| 1978 | 120.893 | 119.876 | 240.770 |
| 1977 | 117.953 | 117.027 | 234.980 |
| 1976 | 114.972 | 114.058 | 229.031 |
| 1975 | 112.021 | 111.006 | 223.028 |
| 1974 | 109.020 | 108.027 | 217.047 |
| 1973 | 106.030 | 105.197 | 211.227 |
| 1972 | 103.000 | 102.372 | 205.372 |
| 1971 | 100.175 | 99.600 | 199.776 |
| 1970 | 0 | 0 | 204.323 |
| 1960 | 0 | 0 | 138.934 |
| 1950 | 0 | 0 | 118.012 |
| 1940 | 0 | 0 | 112.876 |
| 1930 | 0 | 0 | 104.176 |
| 1920 | 0 | 0 | 98.668 |
| 1910 | 0 | 0 | 97.181 |
| 1900 | 0 | 0 | 96.385 |
| Municipios de Álava 2023 | ||||
| Municipio | Habitantes | Variacion 2022 | Var. % | Densidad Hab/Km2 |
| Alegría-Dulantzi | 2.975 | 15 | 0,51% | 149,15 |
| Amurrio | 10.313 | 32 | 0,31% | 107,03 |
| Aramaio | 1.409 | -22 | -1,54% | 19,23 |
| Artziniega | 1.832 | 22 | 1,22% | 67,14 |
| Armiñón | 232 | -3 | -1,28% | 17,92 |
| Arratzua-Ubarrundia | 1.043 | 12 | 1,16% | 18,12 |
| Asparrena | 1.609 | -28 | -1,71% | 24,63 |
| Ayala/Aiara | 2.918 | -3 | -0,10% | 20,73 |
| Baños de Ebro/Mañueta | 295 | -1 | -0,34% | 31,18 |
| Barrundia | 897 | -17 | -1,86% | 9,21 |
| Berantevilla | 451 | -1 | -0,22% | 12,62 |
| Bernedo | 540 | -20 | -3,57% | 4,14 |
| Campezo/Kanpezu | 1.072 | -22 | -2,01% | 12,56 |
| Zigoitia | 1.821 | -1 | -0,05% | 17,84 |
| Kripan | 174 | -2 | -1,14% | 13,90 |
| Kuartango | 401 | -20 | -4,75% | 4,77 |
| Elburgo/Burgelu | 638 | 9 | 1,43% | 19,88 |
| Elciego | 964 | -7 | -0,72% | 59,06 |
| Elvillar/Bilar | 313 | -3 | -0,95% | 17,88 |
| Iruraiz-Gauna | 541 | 4 | 0,74% | 11,48 |
| Labastida/Bastida | 1.566 | 28 | 1,82% | 41,03 |
| Lagrán | 172 | -3 | -1,71% | 3,77 |
| Laguardia | 1.472 | -11 | -0,74% | 18,18 |
| Lanciego/Lantziego | 708 | -16 | -2,21% | 29,19 |
| Lapuebla de Labarca | 865 | -5 | -0,57% | 144,46 |
| Leza | 220 | 3 | 1,38% | 22,17 |
| Laudio/Llodio | 17.917 | 11 | 0,06% | 477,02 |
| Arraia-Maeztu | 812 | 8 | 1,00% | 6,60 |
| Moreda de Álava/Moreda Araba | 208 | -8 | -3,70% | 23,99 |
| Navaridas | 197 | -3 | -1,50% | 22,09 |
| Okondo | 1.198 | 11 | 0,93% | 40,21 |
| Oyón-Oion | 3.405 | -3 | -0,09% | 75,37 |
| Peñacerrada-Urizaharra | 302 | -8 | -2,58% | 4,86 |
| Erriberagoitia/Ribera Alta | 828 | 8 | 0,98% | 6,91 |
| Ribera Baja/Erribera Beitia | 1.423 | 7 | 0,49% | 56,11 |
| Añana | 156 | 0 | 0,00% | 7,12 |
| Salvatierra/Agurain | 5.085 | 16 | 0,32% | 134,63 |
| Samaniego | 305 | -6 | -1,93% | 28,67 |
| San Millán/Donemiliaga | 726 | 8 | 1,11% | 8,50 |
| Urkabustaiz | 1.434 | 26 | 1,85% | 23,57 |
| Valdegovía/Gaubea | 1.066 | -31 | -2,83% | 4,47 |
| Harana/Valle de Arana | 219 | -7 | -3,10% | 5,60 |
| Villabuena de Álava/Eskuernaga | 285 | -6 | -2,06% | 33,61 |
| Legutio | 2.048 | 31 | 1,54% | 44,66 |
| Vitoria-Gasteiz | 255.886 | 2.214 | 0,87% | 924,91 |
| Yécora/Iekora | 249 | 2 | 0,81% | 13,24 |
| Zalduondo | 196 | 1 | 0,51% | 16,50 |
| Zambrana | 422 | -3 | -0,71% | 10,68 |
| Zuia | 2.343 | 13 | 0,56% | 19,13 |
| Iruña Oka/Iruña de Oca | 3.597 | 46 | 1,30% | 67,55 |
| Lantarón | 938 | 7 | 0,75% | 13,90 |