Datos: 2018, eurostat, ine (.es y .pt)
| Territorio | Población | Superficie | Eurodiput | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales |
| IBE ESP+POR | 11,1% UE 56.800.650 hab | 13,4% UE 598.705,0 km2 | 10,0% UE 75/751 | - - | 580 74 | - (-) - - | 8.437 (593) 6.732 hab 71,0 km2 | 11.531 4.926 hab 51,9 km2 | 740 76.758 hab 809,1 km2 |
| ESP | 9,1% UE 46.509.623 hab | 11,3% UE 506.479,4 km2 | 7,2% UE 54/751 | 266 208D+58R | 350 350L (52) | 1.198 (17) 38.823 hab 422,8 km2 | 1.552 (285) 29.968 hab 326,3 km2 | 8.131 5.720 hab 62,3 km2 | 432 107.661 hab 1.172,4 km2 |
| POR | 2,0% UE 10.291.027 hab | 2,1% UE 92.225,6 km2 | 2,8% UE 21/751 | 0 0+0R | 230 22 | 0 (5) - | 6.885 (308) 1.495 hab 13,4 km2 | 3.400 3.027 hab 27,1 km2 | 308 33.412 hab 299,4 km2 |
| FRA | 13,1% UE 66.926.166 hab | 12,3% UE 549.060,0 km2 | 9,9% UE 74/751 | 348 348I+0R | 577 577U | 1.914 (17) 34.967 hab 286,9 km2 | 4.128 (101) 16.213 hab 133,0 km2 | 35.358 1.893 hab 15,5 km2 | 322 207.845 hab 1.705,2 km2 |
| ALE | 16,2% UE 82.792.351 hab | 8,0% UE 358.327,0 km2 | 12,8% UE 96/751 | 69 0+69R | 709 ≥598 299U+299L +111E | 1.873 (16) 44.203 hab 191,3 km2 | - (439) - hab - km2 | 12.013 6.892 hab 29,8 km2 | - hab - km2 |
| CAT | 1,4% UE 7.386.708 hab | 0,7% UE 32.111,0 km2 | -% UE -/751 | 0 0+0R | 85 4 | 0 (4) - | 130 (34) 56.821 hab 247,0 km2 | 947 7.800 hab 33,9 km2 | 49 150.749 hab 655,3 km2 |
| EUS | 0,4% UE 2.199.088 hab | 0,2% UE 7.251,0 km2 | -% UE -/751 | 0 0+0R | 75 3 | 0 (3) - | 153 (11) 14.373 hab 47,4 km2 | 251 8.761 hab 28,9 km2 | 13 169.161 hab 557,8 km2 |
| GAL | 0,5% UE 2.701.743 hab | 0,7% UE 29.574,0 km2 | -% UE -/751 | 0 0+0R | 75 4 | 0 (4) - | 108 (27) 25.016 hab 273,8 km2 | 313 8.632 hab 94,5 km2 | 45 60.039 hab 657,2 km2 |
| VAL | 1,0% UE 4.963.703 hab | 0,5% UE 23.191,0 km2 | -% UE -/751 | 0 0+0R | 99 3 | 0 (3) - | 89 (26) 55.772 hab 260,6 km2 | 542 9.158 hab 42,8 km2 | 36 137.881 hab 644,2 km2 |
| AND | 1,6% UE 8.384.408 hab | 2,0% UE 88.480,0 km2 | -% UE -/751 | 0 0+0R | 109 8 | 0 (8) - | 228 (59) 36.774 hab 388,1 km2 | 785 10.681 hab 112,7 km2 | 85 98.640 hab 1.040,9 km2 |
D/I: sufragio Directo/Indirecto | R: nombramiento por gobierno Regional
U/L/E: circunscripción Uninominal/Lista cerrada partidos/mandato Extra
U/L/E: circunscripción Uninominal/Lista cerrada partidos/mandato Extra
Desglose por CC.AA. en el territorio ESP.
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Andalucía | 18,0% ESP 8.384.408% hab | 17,5% ESP 88.480% km2 | 15,4% 32+9/266 | 17,4% 61/350 | 109 (8) 76.921 hab 811,7 km2 | 228 (59) 36.774 hab 388,1 km2 | 785 10.681 hab 112,7 km2 | 85 98.640 hab 1.040,9 km2 | |
| Almería | 709.340 | 8.774,0 | 4 | 6 | 12 | 27 (4) | 103 | 8 | |
| Cádiz | 1.238.714 | 7.436,0 | 4 | 9 | 15 | 31 (9) | 45 | 14 | |
| Córdoba | 785.240 | 13.771,0 | 4 | 6 | 12 | 27 (10) | 77 | 12 | |
| Granada | 912.075 | 12.531,0 | 4 | 7 | 13 | 27 (6) | 174 | 9 | |
| Huelva | 519.932 | 10.128,0 | 4 | 5 | 11 | 27 (6) | 80 | 6 | |
| Jaén | 638.099 | 14.496,0 | 4 | 5 | 11 | 27 (10) | 97 | 10 | |
| Málaga | 1.641.121 | 7.308,0 | 4 | 11 | 17 | 31 (5) | 103 | 11 | |
| Sevilla | 1.939.887 | 14.036,0 | 4 | 12 | 18 | 31 (9) | 106 | 15 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Aragón | 2,8% ESP 1.308.728% hab | 9,4% ESP 47.704% km2 | 5,3% 12+2/266 | 3,7% 13/350 | 67 (3) 19.533 hab 712,0 km2 | 77 (14) 16.996 hab 619,5 km2 | 731 1.790 hab 65,3 km2 | 16 81.796 hab 2.981,5 km2 | |
| Huesca | 219.345 | 15.626,0 | 4 | 3 | 18 | 25 (5) | 202 | 6 | |
| Teruel | 134.572 | 14.804,0 | 4 | 3 | 14 | 25 (3) | 236 | 3 | |
| Zaragoza | 954.811 | 17.274,0 | 4 | 7 | 35 | 27 (6) | 293 | 7 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Asturias | 2,2% ESP 1.028.244% hab | 2,1% ESP 10.604% km2 | 2,3% 4+2/266 | 2,3% 8/350 | 45 (1) 22.850 hab 235,6 km2 | 78 (8) 13.183 hab 135,9 km2 | 78 13.183 hab 135,9 km2 | 20 51.412 hab 530,2 km2 | |
| Asturias | 1.028.244 | 10.603,6 | 4 | 8 | 45 | 78 (8) | 78 | 20 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Balears | 2,4% ESP 1.128.908% hab | 1,0% ESP 4.992% km2 | 2,6% 5+2/266 | 2,3% 8/350 | 59 (1) 19.134 hab 84,6 km2 | 76 (4) 14.854 hab 65,7 km2 | 67 16.849 hab 74,5 km2 | 6 188.151 hab 832,0 km2 | |
| Balears, Illes | 1.128.908 | 4.992,0 | 5 | 8 | 59 | 76 (4) | 67 | 6 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Canarias | 4,6% ESP 2.127.685% hab | 1,5% ESP 7.447% km2 | 5,3% 11+3/266 | 4,3% 15/350 | 60 (2) 35.461 hab 124,1 km2 | 155 (7) 13.727 hab 48,0 km2 | 88 24.178 hab 84,6 km2 | 19 111.983 hab 391,9 km2 | |
| Palmas, Las | 1.109.175 | 4.066,0 | 5 | 8 | 30 | 75 (3) | 34 | 7 | |
| Santa Cruz de Tenerife | 1.018.510 | 3.381,0 | 6 | 7 | 30 | 80 (4) | 54 | 12 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Cantabria | 1,2% ESP 580.229% hab | 1,1% ESP 5.321% km2 | 1,9% 4+1/266 | 1,4% 5/350 | 35 (1) 16.578 hab 152,0 km2 | 0 (1) inf hab inf km2 | 102 5.689 hab 52,2 km2 | 8 72.529 hab 665,1 km2 | |
| Cantabria | 580.229 | 5.321,0 | 4 | 5 | 35 | 0 (1) | 102 | 8 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Castilla y León | 5,2% ESP 2.409.164% hab | 18,6% ESP 93.953% km2 | 14,7% 36+3/266 | 8,9% 31/350 | 84 (9) 28.681 hab 1.118,5 km2 | 227 (45) 10.613 hab 413,9 km2 | 2.248 1.072 hab 41,8 km2 | 41 58.760 hab 2.291,5 km2 | |
| Ávila | 158.498 | 8.050,2 | 4 | 3 | 7 | 25 (4) | 248 | 4 | |
| Burgos | 357.070 | 14.022,0 | 4 | 4 | 11 | 25 (7) | 371 | 7 | |
| León | 463.746 | 15.581,0 | 4 | 4 | 14 | 25 (6) | 211 | 7 | |
| Palencia | 162.035 | 8.052,0 | 4 | 3 | 7 | 25 (7) | 191 | 3 | |
| Salamanca | 331.473 | 12.349,1 | 4 | 4 | 11 | 25 (5) | 362 | 5 | |
| Segovia | 153.342 | 6.920,7 | 4 | 3 | 7 | 25 (5) | 209 | 4 | |
| Soria | 88.600 | 10.306,4 | 4 | 2 | 5 | 25 (3) | 183 | 3 | |
| Valladolid | 519.851 | 8.111,0 | 4 | 5 | 15 | 27 (3) | 225 | 3 | |
| Zamora | 174.549 | 10.561,0 | 4 | 3 | 7 | 25 (5) | 248 | 5 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Castilla-La Mancha | 4,4% ESP 2.026.807% hab | 15,7% ESP 79.416% km2 | 8,6% 20+3/266 | 6,0% 21/350 | 33 (5) 61.418 hab 2.406,5 km2 | 129 (25) 15.712 hab 615,6 km2 | 919 2.205 hab 86,4 km2 | 31 65.381 hab 2.561,8 km2 | |
| Albacete | 388.786 | 14.926,0 | 4 | 4 | 6 | 25 (5) | 87 | 7 | |
| Ciudad Real | 499.100 | 19.813,0 | 4 | 5 | 8 | 27 (7) | 102 | 10 | |
| Cuenca | 197.222 | 17.141,0 | 4 | 3 | 5 | 25 (4) | 238 | 4 | |
| Guadalajara | 254.308 | 12.167,0 | 4 | 3 | 5 | 25 (3) | 288 | 3 | |
| Toledo | 687.391 | 15.369,0 | 4 | 6 | 9 | 27 (6) | 204 | 7 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Catalunya | 15,9% ESP 7.386.708% hab | 6,3% ESP 32.111% km2 | 9,0% 16+8/266 | 13,4% 47/350 | 135 (4) 54.716 hab 237,9 km2 | 130 (34) 56.821 hab 247,0 km2 | 947 7.800 hab 33,9 km2 | 49 150.749 hab 655,3 km2 | |
| Barcelona | 5.609.350 | 7.726,0 | 4 | 31 | 85 | 51 (14) | 311 | 25 | |
| Girona | 761.947 | 5.910,0 | 4 | 6 | 17 | 27 (6) | 221 | 9 | |
| Lleida | 219.509 | 12.172,0 | 4 | 4 | 15 | 25 (9) | 231 | 7 | |
| Tarragona | 795.902 | 6.303,0 | 4 | 6 | 18 | 27 (5) | 184 | 8 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Com. Valenciana | 10,7% ESP 4.963.703% hab | 4,6% ESP 23.191% km2 | 6,8% 12+6/266 | 9,4% 33/350 | 99 (3) 50.138 hab 234,3 km2 | 89 (26) 55.772 hab 260,6 km2 | 542 9.158 hab 42,8 km2 | 36 137.881 hab 644,2 km2 | |
| Alicante/Alacant | 1.838.819 | 5.816,0 | 4 | 12 | 35 | 31 (8) | 141 | 13 | |
| Castellón/Castelló | 576.898 | 6.611,9 | 4 | 5 | 24 | 27 (9) | 135 | 5 | |
| Valencia/València | 2.547.986 | 10.763,0 | 4 | 16 | 40 | 31 (9) | 266 | 18 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Extremadura | 2,3% ESP 1.072.863% hab | 8,2% ESP 41.634% km2 | 3,8% 8+2/266 | 2,9% 10/350 | 65 (2) 16.506 hab 640,5 km2 | 52 (18) 20.632 hab 800,7 km2 | 388 2.765 hab 107,3 km2 | 21 51.089 hab 1.982,6 km2 | |
| Badajoz | 676.376 | 21.766,0 | 4 | 6 | 36 | 27 (12) | 165 | 14 | |
| Cáceres | 396.487 | 19.868,0 | 4 | 4 | 29 | 25 (6) | 223 | 7 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Galicia | 5,8% ESP 2.701.743% hab | 5,8% ESP 29.574% km2 | 7,1% 16+3/266 | 6,6% 23/350 | 75 (4) 36.023 hab 394,3 km2 | 108 (27) 25.016 hab 273,8 km2 | 313 8.632 hab 94,5 km2 | 45 60.039 hab 657,2 km2 | |
| Coruña, A | 1.119.351 | 7.950,0 | 4 | 8 | 25 | 31 (7) | 93 | 14 | |
| Lugo | 331.327 | 9.856,0 | 4 | 4 | 14 | 25 (6) | 67 | 9 | |
| Ourense | 309.293 | 7.273,0 | 4 | 4 | 14 | 25 (7) | 92 | 9 | |
| Pontevedra | 941.772 | 4.495,0 | 4 | 7 | 22 | 27 (7) | 61 | 13 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Com. de Madrid | 14,1% ESP 6.578.079% hab | 1,6% ESP 8.022% km2 | 4,1% 4+7/266 | 10,3% 36/350 | 129 (1) 50.993 hab 62,2 km2 | 0 (1) inf hab inf km2 | 179 36.749 hab 44,8 km2 | 21 313.242 hab 382,0 km2 | |
| Madrid | 6.578.079 | 8.021,8 | 4 | 36 | 129 | 0 (1) | 179 | 21 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Región de Murcia | 3,2% ESP 1.478.509% hab | 2,2% ESP 11.313% km2 | 2,3% 4+2/266 | 2,9% 10/350 | 45 (1) 32.856 hab 251,4 km2 | 0 (1) inf hab inf km2 | 45 32.856 hab 251,4 km2 | 11 134.410 hab 1.028,5 km2 | |
| Murcia | 1.478.509 | 11.313,0 | 4 | 10 | 45 | 0 (1) | 45 | 11 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Com. Foral Navarra | 1,4% ESP 647.554% hab | 2,1% ESP 10.391% km2 | 1,9% 4+1/266 | 1,4% 5/350 | 50 (1) 12.951 hab 207,8 km2 | 0 (1) inf hab inf km2 | 272 2.381 hab 38,2 km2 | 5 129.511 hab 2.078,2 km2 | |
| Navarra | 647.554 | 10.391,0 | 4 | 5 | 50 | 0 (1) | 272 | 5 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| País Vasco | 4,7% ESP 2.199.088% hab | 1,4% ESP 7.251% km2 | 5,6% 12+3/266 | 5,1% 18/350 | 75 (3) 29.321 hab 96,7 km2 | 153 (11) 14.373 hab 47,4 km2 | 251 8.761 hab 28,9 km2 | 13 169.161 hab 557,8 km2 | |
| Araba/Álava | 328.868 | 3.037,0 | 4 | 4 | 25 | 51 (3) | 51 | 2 | |
| Gipuzkoa | 720.592 | 1.997,0 | 4 | 6 | 25 | 51 (4) | 88 | 5 | |
| Bizkaia | 1.149.628 | 2.217,0 | 4 | 8 | 25 | 51 (4) | 112 | 6 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| La Rioja | 0,7% ESP 315.675% hab | 1,0% ESP 5.045% km2 | 1,9% 4+1/266 | 1,1% 4/350 | 33 (1) 9.566 hab 152,9 km2 | 0 (1) inf hab inf km2 | 174 1.814 hab 29,0 km2 | 3 105.225 hab 1.681,7 km2 | |
| Rioja, La | 315.675 | 5.045,0 | 4 | 4 | 33 | 0 (1) | 174 | 3 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Ceuta | 0,2% ESP 85.144% hab | 0,0% ESP 19% km2 | 0,8% 2+0/266 | 0,3% 1/350 | 0 (1) inf hab inf km2 | 25 (1) 3.406 hab 0,7 km2 | 1 85.144 hab 18,5 km2 | 1 85.144 hab 18,5 km2 | |
| Ceuta | 85.144 | 18,5 | 2 | 1 | 0 | 25 (1) | 1 | 1 | |
| Territorio | Población | Superficie | Senadores | Diputados | Autonómicos (circ) | Provinciales (dist) | Municipios | P Judiciales | |
| Melilla | 0,2% ESP 86.384% hab | 0,0% ESP 12% km2 | 0,8% 2+0/266 | 0,3% 1/350 | 0 (1) inf hab inf km2 | 25 (1) 3.455 hab 0,5 km2 | 1 86.384 hab 12,3 km2 | 1 86.384 hab 12,3 km2 | |
| Melilla | 86.384 | 12,3 | 2 | 1 | 0 | 25 (1) | 1 | 1 | |