(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 683,441 | 1,350,179 | 50.62% | Kigali (Archdiocese) | 2004 | ap2005 |
| 2 | 600,273 | 974,075 | 61.62% | Kabgayi | 2004 | ap2005 |
| 3 | 516,483 | 1,393,147 | 37.07% | Nyundo | 2004 | ap2005 |
| 4 | 492,933 | 1,180,522 | 41.76% | Byumba | 2004 | ap2005 |
| 5 | 477,100 | 825,032 | 57.83% | Butare | 2004 | ap2005 |
| 6 | 446,440 | 849,021 | 52.58% | Ruhengeri | 2004 | ap2005 |
| 7 | 398,700 | 935,809 | 42.60% | Kibungo | 2004 | ap2005 |
| 8 | 293,172 | 582,424 | 50.34% | Cyangugu | 2004 | ap2005 |
| 9 | 228,991 | 537,580 | 42.60% | Gikongoro | 2004 | ap2005 |
|
|