(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Diocese | Year | Source |
|---|---|---|---|---|---|---|
| 1 | 17,000 | Alep (Armenian) (Archeparchy) | 2004 | ap2005 | ||
| 2 | 12,000 | Alep (Vicariate Apostolic) | 2004 | ap2005 | ||
| 3 | 4,105 | Alep (Maronite) (Archeparchy) | 2004 | ap2005 | ||
| 4 | 15,000 | Alep (Chaldean) (Eparchy) | 2004 | ap2005 | ||
| 5 | 17,000 | Alep (Melkite) (Archdiocese) | 2004 | ap2005 | ||
| 6 | 8,000 | Alep (Syrian) (Archeparchy) | 2004 | ap2005 | ||
| 7 | 20,000 | 1,000,000 | 2.00% | Antiochia {Antioch} (Melkite) (Archdiocese) | 1970 | ap1971 |
| 8 | 27,000 | Bosra e Hauran (Melkite) (Archdiocese) | 2004 | ap2005 | ||
| 9 | 12,000 | Damas (Maronite) (Archeparchy) | 2004 | ap2005 | ||
| 10 | 200,000 | Damas (Melkite) (Archdiocese) | 2004 | ap2005 | ||
| 11 | 6,500 | Damas (Syrian) (Archdiocese) | 2004 | ap2005 | ||
| 12 | 5,630 | Hassaké-Nisibi (Syrian) (Archeparchy) | 2004 | ap2005 | ||
| 13 | 27,000 | Homs (-Hama-Jabrud) (Melkite) (Archdiocese) | 2004 | ap2005 | ||
| 14 | 10,000 | Homs (-Hama-Nabk) (Syrian) (Archdiocese) | 2004 | ap2005 | ||
| 15 | 4,000 | Kamichlié (Armenian) (Eparchy) | 2004 | ap2005 | ||
| 16 | 31,000 | Lattaquié {Laodicea} (Maronite) (Eparchy) | 2004 | ap2005 | ||
| 17 | 10,000 | Lattaquié {Laodicea} (Melkite) (Archeparchy) | 2004 | ap2005 |
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