List of churches in the Roman Catholic Diocese of Wilmington

The diocese covers the entire state of Delaware and the Eastern Shore region of Maryland.

[2] This list contains parishes in Wilmington, New Castle and other communities in northern Delaware.

[2] This list contains parishes and mission churches in Maryland on Chesapeake Bay.

[2] St. Mary Star founded in 1760, church dedicated in 1872[32] This list contains parishes in Newark and other communities in both Maryland and Delaware.

[2] This list contains parishes and mission churches in Maryland and Delaware, with most of them on the Atlantic Seaboard.