Either go to the link below, which is from the U.S. Conference of Catholic Bishops, and enter your zip code or your state, and it will tell you your diocese, or call your local parish and just ask.
The population of Roman Catholic Diocese of Bandung is 40,000,000.
Roman Catholic Diocese of Kisantu was created in 1931.
The population of Roman Catholic Diocese of Chingleput is 2,869,920.
The area of Roman Catholic Diocese of Inongo is 100,000 square kilometers.
Catholic diocese of Lansing.
Roman Catholic Diocese of Tura was created in 1973.
Roman Catholic Diocese of Wuhu was created in 1921.
Roman Catholic Diocese of Stockton's population is 1,300,000.
Roman Catholic Diocese of Itanagar was created in 2005.
Roman Catholic Diocese of Daet's population is 508,360.
Roman Catholic Diocese of Ahmedabad's population is 9,750,454.
Roman Catholic Diocese of Dali was created in 1929.