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

	St. Mary of the Immaculate Conception Church
	U.S. National Register of Historic Places
	St. Mary of the Immaculate Conception Church in 2025
Location	600 E 6th Street; Wilmington, Delaware 19801
Coordinates	39°44′21″N 75°32′39″W / 39.739125°N 75.544043°W
Area	less than one acre
Built	1858
Architect	McCloskey, Charles
NRHP reference No.	76000580
Added to NRHP	December 12, 1976

Location600 E 6th Street
Wilmington, Delaware 19801

Coordinates39°44′21″N 75°32′39″W / 39.739125°N 75.544043°W

Arealess than one acre

Built1858

St. Mary of the Immaculate Conception is a historic Roman Catholic church located at 600 E Sixth St. (6th and Pine Streets) in Wilmington, New Castle County, Delaware. St. Mary's is the only active church in Delaware founded by John Neumann, Bishop of Philadelphia 1852–1860, who consecrated it on October 31, 1858. The church and adjacent St. Mary's school were the principal institutions for worship and the education and integration of thousands of Irish immigrants in Wilmington, most of whom lived in the parish upon first arriving.^[2] The church was added to the National Register of Historic Places in 1976.^[1]^[3]

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v t e Roman Catholic Diocese of Wilmington
Bishops	Thomas Albert Andrew Becker Alfred Allen Paul Curtis John James Joseph Monaghan Edmond John Fitzmaurice Michael William Hyle Thomas Mardaga Robert Edward Mulvee Michael Angelo Saltarelli William Francis Malooly William Edward Koenig
Coadjutor bishop	Hubert James Cartwright
Churches	List List of churches in the Roman Catholic Diocese of Wilmington Cathedral Cathedral of St. Peter Parishes St. Joseph Church, Greenville, DE St. John the Baptist Church, Newark, DE St. Joseph's Church, Middletown, DE St. Peter's Church, Queenstown, MD St. Francis Xavier Church, Warwick, MD Resurrection Church, Wilmington, DE Immaculate Conception Parish, Elkton, MD St. Anthony's Church, Wilmington, DE St. Catherine of Siena Church, New Castle County, DE St. Hedwig's Church, Wilmington, DE St. Joseph's Church, Wilmington, DE St. Mary of the Immaculate Conception Church, Wilmington, DE St. Stanislaus Kostka Church, Wilmington, DE
Education	High schools Archmere Academy, Claymont, DE Padua Academy, Wilmington, DE Saints Peter and Paul High School, Easton, MD St. Elizabeth High School, Wilmington, DE St. Mark's High School, New Castle County, DE Salesianum School, Wilmington, DE Ursuline Academy, Wilmington, DE Primary schools Mount Aviat Academy, Childs, MD St. Edmond's Academy, Wilmington, DE Immaculate Conception School, Elkton, MD Former colleges and schools St. Mary's College St. Thomas More Preparatory, Magnolia, DE
Priests	John Barres Benjamin Joseph Keiley
Delaware portal Maryland portal Philadelphia portal Catholicism portal

v t e U.S. National Register of Historic Places in Delaware
Topics	Contributing property Keeper of the Register Historic district History of the National Register of Historic Places National Park Service Property types
Lists by county	Kent New Castle (Northern) New Castle (Southern) Sussex
Lists by city	Wilmington (New Castle County)
Other lists	Bridges National Historic Landmarks
Category:National Register of Historic Places in Delaware Portal:National Register of Historic Places

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

References

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