(Click on the column title to sort by that column)
| # | Catholics | Population | Percent Catholic | Province | Dioceses | Suffragans | Diocesan Priests | Religious Priests | Total Priests | Permanent Deacons | Male Religious | Female Religious | Parishes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1,897,000 | 1,918,000 | 98.91% | Przemysl | 3 | Rzeszów, Zamosc-Lubaczów | 1,719 | 311 | 2,030 | 394 | 1,683 | 788 | |
| 2 | 2,541,000 | 2,603,000 | 97.62% | Lublin | 3 | Sandomierz, Siedlce | 2,103 | 337 | 2,440 | 557 | 1,445 | 732 | |
| 3 | 2,540,000 | 2,604,000 | 97.54% | Czestochowa | 3 | Radom, Sosnowiec | 1,603 | 315 | 1,918 | 419 | 1,525 | 761 | |
| 4 | 2,295,000 | 2,365,000 | 97.04% | Poznan | 2 | Kalisz | 1,249 | 340 | 1,589 | 689 | 1,825 | 700 | |
| 5 | 4,181,000 | 4,344,000 | 96.25% | Kraków {Cracow} | 4 | Biełsko-Zywiec, Kielce, Tarnów | 3,356 | 1,257 | 4,613 | 2,361 | 4,919 | 1,556 | |
| 6 | 1,593,000 | 1,656,000 | 96.20% | Warmia | 3 | Elbląg, Ełk | 889 | 228 | 1,117 | 328 | 526 | 561 | |
| 7 | 2,064,000 | 2,146,000 | 96.18% | Łódż | 2 | Łowicz | 878 | 192 | 1,070 | 417 | 1,045 | 375 | |
| 8 | 3,197,000 | 3,350,000 | 95.43% | Katowice | 3 | Gliwice, Opole | 1,891 | 391 | 2,282 | 537 | 1,990 | 862 | |
| 9 | 3,306,000 | 3,466,000 | 95.38% | Warszawa {Warsaw} | 3 | Płock, Warszawa-Praga | 1,667 | 686 | 2,353 | 1,237 | 4,003 | 613 | |
| 10 | 2,327,000 | 2,463,000 | 94.48% | Gdansk | 3 | Pelplin, Torun | 1,368 | 372 | 1,740 | 454 | 1,232 | 677 | |
| 11 | 2,989,000 | 3,190,000 | 93.70% | Szczecin-Kamien | 3 | Koszalin-Kołobrzeg, Zielona Góra-Gorzów | 1,400 | 387 | 1,787 | 409 | 716 | 755 | |
| 12 | 3,106,000 | 3,318,000 | 93.61% | Wrocław {Breslavia} | 3 | Legnica, Swidnica | 1,573 | 501 | 2,074 | 633 | 2,089 | 888 | |
| 13 | 1,144,000 | 1,306,000 | 87.60% | Białystok | 3 | Drohiczyn, Łomża | 979 | 58 | 1,037 | 76 | 500 | 379 | |
| 14 | 1,825,000 | 2,477,000 | 73.68% | Gniezno | 3 | Bydgoszcz, Włocławek | 1,426 | 334 | 1,760 | 532 | 794 | 724 |
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