| # | Catholics | Population | Percent Catholic | Province | Dioceses | Suffragans | Diocesan Priests | Religious Priests | Total Priests | Permanent Deacons | Male Religious | Female Religious | Parishes
|
|---|
| 1 | 10,615,000 | 11,278,000 | 94.12% | Buenos Aires | 12 | Avellaneda-Lanús, Gregorio de Laferrere, Lomas de Zamora, Merlo-Moreno, Morón, San Charbel en Buenos Aires (Maronite), San Isidro, San Justo, San Martín, San Miguel, Santa María del Patrocinio en Buenos Aires (Ukrainian) | 961 | 756 | 1,717 | 222 | 1,427 | 3,110 | 591
|
| 2 | 3,967,000 | 4,633,000 | 85.62% | La Plata | 7 | Azul, Chascomús, Mar del Plata, Nueve de Julio, Quilmes, Zárate-Campana | 382 | 193 | 575 | 119 | 319 | 1,110 | 326
|
| 3 | 2,768,000 | 3,063,000 | 90.37% | Córdoba | 6 | Cruz del Eje, Deán Funes, San Francisco, Villa de la Concepción del Río Cuarto, Villa María | 390 | 209 | 599 | 21 | 399 | 966 | 266
|
| 4 | 2,075,000 | 2,287,000 | 90.73% | Rosario | 3 | San Nicolás de los Arroyos, Venado Tuerto | 268 | 105 | 373 | 8 | 195 | 357 | 217
|
| 5 | 1,917,000 | 2,112,000 | 90.77% | Salta | 6 | Cafayate, Catamarca, Humahuaca, Jujuy, Orán | 200 | 108 | 308 | 21 | 175 | 348 | 151
|
| 6 | 1,903,000 | 2,390,000 | 79.62% | Corrientes | 5 | Goya, Posadas, Puerto Iguazú, Santo Tomé | 174 | 94 | 268 | 55 | 100 | 391 | 129
|
| 7 | 1,899,000 | 2,339,000 | 81.19% | Bahía Blanca | 7 | Alto Valle del Río Negro, Comodoro Rivadavia, Río Gallegos, San Carlos de Bariloche, Santa Rosa, Viedma | 146 | 164 | 310 | 24 | 193 | 491 | 190
|
| 8 | 1,834,000 | 2,134,000 | 85.94% | Tucumán | 4 | Añatuya, Concepción, Santiago del Estero | 180 | 100 | 280 | 43 | 136 | 469 | 131
|
| 9 | 1,767,000 | 2,081,000 | 84.91% | Mendoza | 3 | Neuquén, San Rafael | 194 | 120 | 314 | 42 | 155 | 382 | 143
|
| 10 | 1,325,000 | 1,555,000 | 85.21% | Resistencia | 3 | Formosa, San Roque de Presidencia Roque Sáenz Peña | 72 | 73 | 145 | 28 | 100 | 311 | 80
|
| 11 | 1,263,000 | 1,410,000 | 89.57% | Santa Fe de la Vera Cruz | 3 | Rafaela, Reconquista | 175 | 40 | 215 | 26 | 56 | 371 | 144
|
| 12 | 1,182,000 | 1,293,000 | 91.42% | San Juan de Cuyo | 3 | La Rioja, San Luis | 147 | 38 | 185 | 10 | 57 | 233 | 115
|
| 13 | 1,005,000 | 1,097,000 | 91.61% | Paraná | 3 | Concordia, Gualeguaychú | 195 | 48 | 243 | | 73 | 363 | 109
|