(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 15,382 | 4,550,000 | .34% | Phnom-Penh (Vicariate Apostolic) | 2004 | ap2005 |
| 2 | 3,456 | 3,621,327 | .10% | Battambang (Prefecture Apostolic) | 2004 | ap2005 |
| 3 | 3,700 | 4,400,000 | .08% | Kompong-Cham (Prefecture Apostolic) | 2004 | ap2005 |
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