(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 649,270 | 721,412 | 90.00% | Baní | 2004 | ap2005 |
| 2 | 183,588 | 342,759 | 53.56% | Barahona | 2004 | ap2005 |
| 3 | Dominican Republic, Military (Military Ordinariate) | 2004 | ap2005 | |||
| 4 | 610,881 | 880,254 | 69.40% | La Vega | 2004 | ap2005 |
| 5 | 380,000 | 400,000 | 95.00% | Mao-Monte Cristi | 2004 | ap2005 |
| 6 | 457,100 | 535,400 | 85.38% | Nuestra Señora de la Altagracia en Higüey | 2004 | ap2005 |
| 7 | 338,560 | 346,520 | 97.70% | Puerto Plata | 2004 | ap2005 |
| 8 | 500,100 | 650,000 | 76.94% | San Francisco de Macorís | 2004 | ap2005 |
| 9 | 450,000 | 550,000 | 81.82% | San Juan de la Maguana | 2004 | ap2005 |
| 10 | 492,000 | 581,000 | 84.68% | San Pedro de Macorís | 2004 | ap2005 |
| 11 | 870,635 | 1,065,886 | 81.68% | Santiago de los Caballeros (Archdiocese) | 2004 | ap2005 |
| 12 | 3,110,311 | 3,274,012 | 95.00% | Santo Domingo (Archdiocese) | 2004 | ap2005 |
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