(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 320,000 | 355,900 | 89.91% | Salto | 2004 | ap2005 |
| 2 | 160,000 | 180,000 | 88.89% | Maldonado-Punta del Este | 2004 | ap2005 |
| 3 | 170,000 | 210,000 | 80.95% | Mercedes | 2004 | ap2005 |
| 4 | 354,928 | 443,660 | 80.00% | Canelones | 2004 | ap2005 |
| 5 | 85,000 | 112,401 | 75.62% | San José de Mayo | 2004 | ap2005 |
| 6 | 90,000 | 122,600 | 73.41% | Florida | 2004 | ap2005 |
| 7 | 110,000 | 150,000 | 73.33% | Melo | 2004 | ap2005 |
| 8 | 50,000 | 71,100 | 70.32% | Minas | 2004 | ap2005 |
| 9 | 126,567 | 183,414 | 69.01% | Tacuarembó | 2004 | ap2005 |
| 10 | 850,000 | 1,350,000 | 62.96% | Montevideo (Archdiocese) | 2004 | ap2005 |
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