St. Mary's County, Maryland
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 32 listed properties in the county, first listed in 1969; 3 are also National Historic Landmarks. Most listings are in or near Leonardtown, Chaptico, St. Inigoes.
Summary generated automatically from the source data on this page.
Newspapers
Library of CongressNewspaper directory data for Maryland is not yet loaded on this site. Browse St. Mary's titles at the Library of Congress.
National Register of Historic Places
NPS NRHP10 of 32 listings mapped; some locations are restricted by NPS to protect sensitive sites.
32 listed properties
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBSt. Marys was formed in 1638 (1638-01-24) from unknown / original county.
By 24 January 1637/1638, ST. MARYS was created as the first county in Maryland. ST. MARYS was meant to serve the entire colony; territorial limits, if any, are unknown, and boundaries are estimated.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusSt. Mary's County population from 1790 to 2020 (Census historical series).
| 1790 | 1800 | 1820 | 1840 | 1860 | 1880 | 1900 | 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15,544 | 13,699 | 12,974 | 13,224 | 15,213 | 16,934 | 17,182 | 16,112 | 14,626 | 29,111 | 38,915 | 59,895 | 86,211 | 113,777 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
Cemeteries & historical places
USGS GNIS25 cemeteries and 7 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 25 of 25 listed
| Name |
|---|
| All Faith Episcopal Cemetery |
| All Saints Episcopal Church Cemetery |
| Charles Memorial Gardens |
| Christ Church Cemetery |
| Ebenezer Cemetery |
| Evergreen Memorial Gardens |
| First Saints Community Church Cemetery |
| Galilee Cemetery |
| Holy Face Parish Cemetery |
| John Wesley Cemetery |
| Joy Chapel Cemetery |
| Mount Zion Methodist Cemetery |
| Old Saint Aloysius Cemetery |
| Old Saint Joseph's Cemetery |
| Our Ladys Chapel Cemetery |
| Point Lookout Confederate Cemetery |
| Queen of Peace Cemetery |
| Saint Aloysius Parish Cemetery |
| Saint Andrews Episcopal Cemetery |
| Saint Francis Xavier Parish Cemetery |
| Saint Georges Parish Cemetery |
| Saint Georges Poplar Hill Episcopal Cemetery |
| Saint John Parish Cemetery |
| Saint Joseph's Cemetery |
| Saint Michael Parish Cemetery |
Historical populated places — 7 of 7
| Name |
|---|
| Lower Brambley |
| Mattapanient |
| Newtown |
| Pearson |
| Susquehanna |
| Underwood |
| Upper Brambley |
Source: USGS Geographic Names Information System (public domain). Cemeteries from the 2021 NationalFile archive; historical places from GNIS HistoricalFeatures topical extract.
Historical markers
HMdb linkMarker text and photos from the Historical Marker Database (HMdb) are not embedded here. HMdb allows non-commercial reuse with attribution, but commercial/compensated use needs written permission; this is a commercial site, so we only link out.
Search HMdb for St. Mary's County, Maryland
Terms: hmdb.org/copyright.asp. Linking is encouraged by HMdb.