There are 3 districts: South Johor, North Johor and Malacca.
There are currently 20 churches being administered under 17 parishes.

South Johor Vicariate Forane
Cathedral of the Sacred Heart of Jesus, Taman Seri Tebrau/Century Garden, Johor Bahru
Church of the Immaculate Conception, Tanjung Puteri, Johor Bahru
Church of Christ the King, Kulai
Church of Our Lady of Lourdes, Pekan Nanas, Pontian
Church of St. Joseph, Plentong, Masai, Iskandar Puteri, Johor Bahru
Church of St. Theresa, Masai, Iskandar Puteri, Johor Bahru
Church of the Holy Family, Ulu Tiram, Johor Bahru
Church of St. Elizabeth, Kota Tinggi
Church of the Immaculate Heart of Mary, Pontian Kechil, Pontian
North Johor Vicariate Forane
Church of St. Anthony, Cha'ah, Segamat
Church of St. Louis, Kluang
Church of St. Philip, Segamat
Church of St. Peter, Mersing
Church of St. Simon, Labis, Segamat
Church of St. Henry, Batu Pahat
Church of St. Andrew, Muar
Church of St. Matthew, Tangkak
Malacca Vicariate Forane
Church of St. Francis Xavier, Malacca Town
St. Peter's Church, Malacca Town
Church of St. Theresa, Gajah Berang, Central Malacca
Church of St. Mary, Ayer Salak, Malacca Town
There are 3 districts: South Johor, North Johor and Malacca. There are currently 20 churches being administered under 17 parishes.
South Johor Vicariate Forane
Cathedral of the Sacred Heart of Jesus, Taman Seri Tebrau/Century Garden, Johor Bahru
Church of the Immaculate Conception, Tanjung Puteri, Johor Bahru
Church of Christ the King, Kulai
Church of Our Lady of Lourdes, Pekan Nanas, Pontian
Church of St. Joseph, Plentong, Masai, Iskandar Puteri, Johor Bahru
Church of St. Theresa, Masai, Iskandar Puteri, Johor Bahru
Church of the Holy Family, Ulu Tiram, Johor Bahru
Church of St. Elizabeth, Kota Tinggi
Church of the Immaculate Heart of Mary, Pontian Kechil, Pontian
North Johor Vicariate Forane
Church of St. Anthony, Cha'ah, Segamat
Church of St. Louis, Kluang
Church of St. Philip, Segamat
Church of St. Peter, Mersing
Church of St. Simon, Labis, Segamat
Church of St. Henry, Batu Pahat
Church of St. Andrew, Muar
Church of St. Matthew, Tangkak
Malacca Vicariate Forane
Church of St. Francis Xavier, Malacca Town
St. Peter's Church, Malacca Town
Church of St. Theresa, Gajah Berang, Central Malacca
Church of St. Mary, Ayer Salak, Malacca Town
Roman Catholic Diocese of Malacca-Johor