Its district as a Landeskirche covers the former Free State of Brunswick in the borders of 1945. As of 2020, the church had 311,518 members in 300 parishes.
The ecclesiastical area covered by this Landeskirche includes the territory that was once the Free State of Brunswick, as established in 1945. At present, the church has a total of 311,518 members residing in 300 local congregations.