St. Marys Historic District
Also known as: Sanct Marienstadt

Why it's listed
Centred on a triangular public space called the Diamond, the St. Marys Historic District covers about 170 acres of the city's oldest core, combining a two- and three-story brick and stone commercial district with surrounding residential streets of Foursquare, Italianate and other period houses. German Catholic settlers founded the community in December 1842 and named it Sanct Marian Stadt. Its best-known institution is St. Joseph's Convent, described as the first Benedictine convent in the United States. Lumber, followed by carbon and powdered metal manufacturing from 1899 onward, drove the growth reflected in the downtown buildings. Of 499 resources, 408 contribute to the district. The district is listed for its commercial and religious history and for its collection of architecture spanning many popular styles from the nineteenth and early twentieth centuries.
Significance in brief: The district is significant for its commercial history tied to the carbon and powdered metal industries that followed the lumber era, for its association with Roman Catholicism in America through St. Joseph's, the first Benedictine convent in the United States, and for a collection of architecture representing many popular styles of the period. The community was founded in the early 1840s as a German Catholic colony.
Machine-generated summary. This summary was generated by a language model from the official nomination document and has not been reviewed line by line by an editor. It may contain errors. Check the source document before relying on any detail. Source: nomination document (PDF) · National Archives catalog entry. NRHP reference 98001368, listed November 25, 1998. Summary generated October 2026 (model claude-haiku-5-5, prompt v1.1-2026-10-29, confidence medium).
Key facts
| Address | Roughly bounded by Walburga, St. Michael, Fourth, John, and Mill Sts., St. Marys |
|---|---|
| County | Elk County |
| Listed | November 25, 1998 |
| Reference number | 98001368 |
| Resource type | District |
| Period of significance | 1842-1948 |
| Architectural style | Greek Revival, Italianate, Romanesque Revival, Gothic Revival, French Second Empire, Queen Anne, Neo-Classical Revival, Colonial Revival, American Foursquare, Tudor Revival, Bungalow |
| Criteria |
|
| Areas of significance | Commerce, Religion, Architecture |
| Level of significance | National |
| Status (as stated in the nomination) | The district retains integrity; non-contributing resources are dispersed widely throughout the nominated area. Several downtown commercial buildings were rehabilitated in the 1980s and 1990s. |
| Acreage | 170 |
| Coordinates | 41.42897, -78.56221 (NPS GIS) |
What listing means for this property
This is a historic district. Buildings within its boundary are either contributing (they add to the district's significance) or non-contributing. Owners of contributing income-producing buildings can claim the 20% federal rehabilitation tax credit; homeowners should look at state credits. National Register districts impose no design review by themselves; a local historic district ordinance, if one exists, does (the difference explained).
General information, not legal or tax advice. Rules change; confirm with your State Historic Preservation Office or a qualified adviser.
Sources and further reading
- National Park Service, National Register of Historic Places database (snapshot May 2026), reference 98001368.
- Nomination form (PDF, National Archives) — catalog entry
- Wikipedia article (used for cross-checking only; text not reproduced here)
- Wikidata Q7590570
- This listing as JSON
Last updated October 2026. Found an error? See the editorial policy for how to report it.