(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 3,279,690 | 3,850,518 | 85.18% | Bogotá (Archdiocese) | 2004 | ap2005 |
| 2 | 2,625,494 | 3,012,847 | 87.14% | Medellín (Archdiocese) | 2004 | ap2005 |
| 3 | 2,086,297 | 2,454,297 | 85.01% | Cali (Archdiocese) | 2004 | ap2005 |
| 4 | 1,985,000 | 2,452,000 | 80.95% | Barranquilla (Archdiocese) | 2004 | ap2005 |
| 5 | 1,310,000 | 1,510,000 | 86.75% | Montería | 2004 | ap2005 |
| 6 | 1,168,525 | 1,192,350 | 98.00% | Bucaramanga (Archdiocese) | 2004 | ap2005 |
| 7 | 1,100,000 | 1,332,728 | 82.54% | Engativá | 2004 | ap2005 |
| 8 | 1,100,000 | 1,160,071 | 94.82% | Popayán (Archdiocese) | 2004 | ap2005 |
| 9 | 1,076,500 | 1,210,000 | 88.97% | Cartagena (Archdiocese) | 2004 | ap2005 |
| 10 | 1,028,700 | 1,350,000 | 76.20% | Fontibón | 2004 | ap2005 |
| 11 | 922,200 | 1,108,496 | 83.19% | Santa Marta | 2004 | ap2005 |
| 12 | 900,000 | 1,200,000 | 75.00% | Pereira | 2004 | ap2005 |
| 13 | 765,000 | 900,000 | 85.00% | Soacha | 2004 | ap2005 |
| 14 | 731,000 | 750,000 | 97.47% | Manizales (Archdiocese) | 2004 | ap2005 |
| 15 | 708,000 | 790,000 | 89.62% | Cúcuta | 2004 | ap2005 |
| 16 | 671,816 | 839,770 | 80.00% | Sincelejo | 2004 | ap2005 |
| 17 | 650,000 | 730,000 | 89.04% | Pasto | 2004 | ap2005 |
| 18 | 650,000 | 800,000 | 81.25% | Valledupar | 2004 | ap2005 |
| 19 | 630,000 | 650,200 | 96.89% | Santa Rosa de Osos | 2004 | ap2005 |
| 20 | 600,000 | 750,000 | 80.00% | Magangué | 2004 | ap2005 |
| 21 | 600,000 | 700,000 | 85.71% | Palmira | 2004 | ap2005 |
| 22 | 550,000 | 565,000 | 97.35% | Sonsón-Rionegro | 2004 | ap2005 |
| 23 | 521,300 | 575,540 | 90.58% | Zipaquirá | 2004 | ap2005 |
| 24 | 515,000 | 523,000 | 98.47% | Cartago | 2004 | ap2005 |
| 25 | 510,300 | 567,000 | 90.00% | Ibagué (Archdiocese) | 2004 | ap2005 |
| 26 | 506,000 | 540,000 | 93.70% | Villavicencio (Archdiocese) | 2004 | ap2005 |
| 27 | 491,127 | 569,127 | 86.29% | Buga | 2004 | ap2005 |
| 28 | 481,394 | 530,000 | 90.83% | Ipiales | 2004 | ap2005 |
| 29 | 480,000 | 580,000 | 82.76% | Girardot | 2004 | ap2005 |
| 30 | 475,000 | 490,000 | 96.94% | Garzón | 2004 | ap2005 |
| 31 | 410,495 | 443,814 | 92.49% | Facatativá | 2004 | ap2005 |
| 32 | 409,126 | 430,000 | 95.15% | Neiva | 2004 | ap2005 |
| 33 | 408,422 | 495,212 | 82.47% | Armenia | 2004 | ap2005 |
| 34 | 390,850 | 400,000 | 97.71% | Buenaventura | 2004 | ap2005 |
| 35 | 355,000 | 380,000 | 93.42% | Chiquinquirá | 2004 | ap2005 |
| 36 | 352,137 | 417,514 | 84.34% | Ocaña | 2004 | ap2005 |
| 37 | 350,000 | 500,000 | 70.00% | Apartadó | 2004 | ap2005 |
| 38 | 350,000 | 425,000 | 82.35% | Espinal | 2004 | ap2005 |
| 39 | 320,000 | 540,000 | 59.26% | Barrancabermeja | 2004 | ap2005 |
| 40 | 320,000 | 390,000 | 82.05% | Riohacha | 2004 | ap2005 |
| 41 | 310,000 | 349,000 | 88.83% | Duitama-Sogamoso | 2004 | ap2005 |
| 42 | 294,000 | 345,000 | 85.22% | La Dorada-Guaduas | 2004 | ap2005 |
| 43 | 260,000 | 300,000 | 86.67% | Tunja (Archdiocese) | 2004 | ap2005 |
| 44 | 255,000 | 290,200 | 87.87% | Mocoa-Sibundoy | 2004 | ap2005 |
| 45 | 250,000 | 300,000 | 83.33% | Líbano-Honda | 2004 | ap2005 |
| 46 | 246,749 | 254,381 | 97.00% | Socorro y San Gil | 2004 | ap2005 |
| 47 | 242,000 | 328,937 | 73.57% | Yopal | 2004 | ap2005 |
| 48 | 232,000 | 262,000 | 88.55% | Arauca | 2004 | ap2005 |
| 49 | 228,000 | 230,000 | 99.13% | Jericó | 2004 | ap2005 |
| 50 | 225,000 | 243,000 | 92.59% | Montelibano | 2004 | ap2005 |
| 51 | 222,500 | 256,000 | 86.91% | Florencia | 2004 | ap2005 |
| 52 | 215,470 | 227,000 | 94.92% | Quibdó | 2004 | ap2005 |
| 53 | 211,400 | 222,400 | 95.05% | Caldas | 2004 | ap2005 |
| 54 | 210,000 | 250,000 | 84.00% | Tumaco | 2004 | ap2005 |
| 55 | 192,207 | 197,594 | 97.27% | Nueva Pamplona (Archdiocese) | 2004 | ap2005 |
| 56 | 180,000 | 200,000 | 90.00% | Girardota | 2004 | ap2005 |
| 57 | 180,000 | 190,000 | 94.74% | Tibú | 2004 | ap2005 |
| 58 | 180,000 | 200,000 | 90.00% | Vélez | 2004 | ap2005 |
| 59 | 175,000 | 200,000 | 87.50% | Istmina-Tadó | 2004 | ap2005 |
| 60 | 161,133 | 171,110 | 94.17% | Málaga-Soatá | 2004 | ap2005 |
| 61 | 160,000 | 180,000 | 88.89% | Santa Fe de Antioquía (Archdiocese) | 2004 | ap2005 |
| 62 | 155,500 | 157,500 | 98.73% | Garagoa | 2004 | ap2005 |
| 63 | 150,000 | 200,000 | 75.00% | Granada en Colombia | 2004 | ap2005 |
| 64 | 120,000 | 150,000 | 80.00% | San Vicente-Puerto Leguízamo (Vicariate Apostolic) | 2004 | ap2005 |
| 65 | 110,000 | 120,000 | 91.67% | Guapi (Vicariate Apostolic) | 2004 | ap2005 |
| 66 | 108,500 | 120,000 | 90.42% | San José del Guaviare | 2004 | ap2005 |
| 67 | 70,000 | 110,000 | 63.64% | Puerto Gaitán (Vicariate Apostolic) | 2004 | ap2005 |
| 68 | 63,000 | 66,500 | 94.74% | Trinidad (Vicariate Apostolic) | 2004 | ap2005 |
| 69 | 62,800 | 65,300 | 96.17% | Leticia (Vicariate Apostolic) | 2004 | ap2005 |
| 70 | 50,000 | 80,000 | 62.50% | San Andrés y Providencia (Vicariate Apostolic) | 2004 | ap2005 |
| 71 | 50,000 | 55,000 | 90.91% | Tierradentro (Vicariate Apostolic) | 2004 | ap2005 |
| 72 | 29,000 | 40,000 | 72.50% | Puerto Carreño (Vicariate Apostolic) | 2004 | ap2005 |
| 73 | 25,000 | 28,000 | 89.29% | Mitú (Vicariate Apostolic) | 2004 | ap2005 |
| 74 | 9,000 | 25,500 | 35.29% | Inírida (Vicariate Apostolic) | 2004 | ap2005 |
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