It includes a territory of west to east from Magog to the Gaspe and the Magdalen Islands, south to north from the United States border to Kawawachikamach and several communities along the Lower North Shore.

The diocesan office is located in Quebec City, as is Holy Trinity Anglican Cathedral, completed in 1804.

The diocese counts approximately 1,600 Anglican faithful who gather in 65 parishes as of 2022.

[1] With both the dioceses of Quebec and Montreal having fewer than 10,000 members and decreasing numbers, discussions are underway to explore ways the two dioceses can work more closely together.

[4] The Dean of Quebec is also Rector of Holy Trinity Cathedral.