It covers the peninsular Arabian countries of : Bahrain, Kuwait, Qatar, and Saudi Arabia, although there are no churches in Saudi Arabia.
As per 2014, it pastorally served 2,445,000 Catholics (6.7% of 36,252,722 total) on 2,179,846 km² in 10 parishes with 58 priests (18 diocesan, 40 religious), 2 deacons and 58 lay religious (40 brothers, 18 sisters) [REF].