(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Province | Dioceses | Suffragans | Diocesan Priests | Religious Priests | Total Priests | Permanent Deacons | Male Religious | Female Religious | Parishes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 5,556,000 | 6,062,000 | 91.65% | Barcelona | 3 | Sant Feliu de Llobregat, Terrassa | 1,055 | 673 | 1,728 | 56 | 1,159 | 4,085 | 695 |
| 2 | 1,860,000 | 2,048,000 | 90.82% | Burgos | 5 | Bilbao, Osma-Soria, Palencia, Vitoria | 1,446 | 805 | 2,251 | 9 | 1,333 | 4,321 | 2,726 |
| 3 | 4,429,000 | 4,687,000 | 94.50% | Granada | 6 | Almería, Cartagena (en España), Guadix, Jaén, Málaga | 1,407 | 467 | 1,874 | 17 | 788 | 4,618 | 1,299 |
| 4 | 5,108,000 | 5,656,000 | 90.31% | Madrid | 3 | Alcalá de Henares, Getafe | 1,731 | 1,978 | 3,709 | 19 | 3,415 | 8,626 | 692 |
| 5 | 1,093,000 | 1,114,000 | 98.11% | Mérida-Badajoz | 3 | Coria-Cáceres, Plasencia | 604 | 85 | 689 | 1 | 149 | 1,573 | 578 |
| 6 | 2,136,000 | 2,205,000 | 96.87% | Oviedo | 4 | Astorga, León, Santander | 1,324 | 499 | 1,823 | 2 | 786 | 3,020 | 3,277 |
| 7 | 1,491,000 | 1,586,000 | 94.01% | Pamplona y Tudela | 4 | Calahorra y La Calzada-Logroño, Jaca, San Sebastián | 1,099 | 858 | 1,957 | 3 | 1,336 | 4,652 | 1,432 |
| 8 | 2,592,000 | 2,730,000 | 94.95% | Santiago de Compostela | 5 | Lugo, Mondoñedo-Ferrol, Orense, Tui-Vigo | 1,784 | 316 | 2,100 | 5 | 590 | 2,453 | 3,626 |
| 9 | 5,857,000 | 6,212,000 | 94.29% | Sevilla {Seville} | 7 | Cádiz y Ceuta, Córdoba, Huelva, Islas Canarias {Canary Islands}, Jerez de la Frontera, San Cristóbal de La Laguna o Tenerife | 1,398 | 722 | 2,120 | 72 | 1,182 | 5,975 | 1,453 |
| 10 | 2,123,000 | 2,272,000 | 93.44% | Tarragona | 7 | Girona, Lleida, Solsona, Tortosa, Urgell, Vic | 1,004 | 192 | 1,196 | 20 | 405 | 2,674 | 1,653 |
| 11 | 1,778,000 | 1,810,000 | 98.23% | Toledo | 5 | Albacete, Ciudad Real, Cuenca, Sigüenza-Guadalajara | 1,266 | 237 | 1,503 | 4 | 477 | 2,833 | 1,430 |
| 12 | 4,639,000 | 5,145,000 | 90.17% | Valencia | 6 | Ibiza, Mallorca, Menorca, Orihuela-Alicante, Segorbe-Castellón de la Plana | 1,618 | 1,056 | 2,674 | 11 | 1,336 | 6,262 | 1,205 |
| 13 | 1,234,000 | 1,306,000 | 94.49% | Valladolid | 6 | Avila, Ciudad Rodrigo, Salamanca, Segovia, Zamora | 1,059 | 527 | 1,586 | 9 | 1,091 | 3,574 | 1,694 |
| 14 | - | - | West Indies | (none) | |||||||||
| 15 | 1,110,000 | 1,140,000 | 97.37% | Zaragoza | 5 | Barbastro-Monzón, Huesca, Tarazona, Teruel y Albarracín | 778 | 360 | 1,138 | 624 | 2,507 | 1,149 |
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