St. Mary of the Immaculate Conception Church (Wilmington, Delaware)

St. Mary of the Immaculate Conception Church
U.S. National Register of Historic Places
File:St Marys Wilmington.JPG
St. Mary of the Immaculate Conception Church, January 2010
Location	6th and Pine Sts., Wilmington, Delaware
Coordinates
Area	less than one acre
Built	1858
Architect	McCloskey, Charles
NRHP Reference #	76000580
Added to NRHP	December 12, 1976

St. Mary of the Immaculate Conception is a historic Roman Catholic church located at 6th and Pine Streets in Wilmington, New Castle County, Delaware. It was built in 1858 and is a brick church building trimmed in limestone and measuring about 100 feet long and 60 feet wide. The front facade features three brick towers; two corner ones are set diagonally, with onion-shaped domes topped with crosses and the center square tower (built 1881), now used as a belfry, has arched louvred openings. The dome on the center tower replaced an original wooden belfry and smaller dome destroyed by fire in March 1966. A parochial Catholic school, St. Mary's, was built on the adjacent property in 1866. St. Mary's is the only church in Delaware associated with Saint John Neumann, Bishop of Philadelphia 1852-1860, who consecrated it in 1859. The church and school were the principal institution for the education and integration of thousands of Irish immigrants in Wilmington, most of whom lived in the parish upon first arriving.

The church was added to the National Register of Historic Places in 1976.