The population of Roman Catholic Diocese of Macapá is 339,000.
Roman Catholic Diocese of Łomża's population is 573,647.
Roman Catholic Diocese of Ambanja's population is 1,241,000.
The population of Roman Catholic Diocese of Uvira is 1,105,000.
The population of Roman Catholic Diocese of Bafatá is 511,000.
Roman Catholic Diocese of Łowicz's population is 606,414.
The population of Roman Catholic Diocese of Kottapuram is 3,201,098.
Roman Catholic Diocese of Simdega's population is 511,919.
Roman Catholic Diocese of Quixadá's population is 282,724.
Roman Catholic Diocese of Arecibo's population is 607,000.
Roman Catholic Diocese of Palayamkottai's population is 2,652,273.
The population of Roman Catholic Diocese of Parintins is 195,600.
Roman Catholic Diocese of Muzaffarpur's population is 29,436,742.