(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 2,800,000 | 3,900,000 | 71.79% | San Cristobal de la Habana (Archdiocese) | 2004 | ap2005 |
| 2 | 542,064 | 858,351 | 63.15% | Camagüey (Archdiocese) | 2004 | ap2005 |
| 3 | 518,935 | 1,176,219 | 44.12% | Santa Clara | 2004 | ap2005 |
| 4 | 478,000 | 690,400 | 69.24% | Matanzas | 2004 | ap2005 |
| 5 | 435,000 | 1,600,000 | 27.19% | Holguín | 2004 | ap2005 |
| 6 | 430,000 | 1,000,000 | 43.00% | Pinar del Rio | 2004 | ap2005 |
| 7 | 290,000 | 480,000 | 60.42% | Cienfuegos | 2004 | ap2005 |
| 8 | 248,000 | 1,041,374 | 23.81% | Santiago de Cuba (Archdiocese) | 2004 | ap2005 |
| 9 | 222,000 | 832,644 | 26.66% | Santisimo Salvador de Bayamo y Manzanillo | 2004 | ap2005 |
| 10 | 186,000 | 450,000 | 41.33% | Ciego de Avila | 2004 | ap2005 |
| 11 | 181,251 | 517,858 | 35.00% | Guantánamo-Baracoa | 2004 | ap2005 |
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