Slope County, North Dakota
Historic newspapers, landmarks, and county history layers for genealogists and local historians.
At a glance
SummaryThe National Register of Historic Places includes 2 listed properties in the county, first listed in 1977. Most listings are in or near Amidon, Marmarth.
Summary generated automatically from the source data on this page.
Newspapers
Library of CongressNewspaper directory data for North Dakota is not yet loaded on this site. Browse Slope titles at the Library of Congress.
National Register of Historic Places
NPS NRHP2 of 2 listings mapped; some locations are restricted by NPS to protect sensitive sites.
2 listed properties
| Property | City | Listed |
|---|---|---|
| H-T Ranch | Amidon | 1985 |
| Mystic Theatre | Marmarth | 1977 |
Source: National Park Service, National Register of Historic Places. Property links open NRHP nomination files at the National Archives.
County formation
Newberry AHCBSlope was formed in 1914 (1914-11-03) from Billings.
SLOPE created from BILLINGS; vote to create SLOPE passed 740 to 356.
Source: Newberry Library, Atlas of Historical County Boundaries.
Population by decade
CensusSlope County population from 1920 to 2020 (Census historical series).
| 1920 | 1940 | 1950 | 1960 | 1980 | 2000 | 2020 |
|---|---|---|---|---|---|---|
| 4,940 | 2,932 | 2,315 | 1,893 | 1,157 | 767 | 706 |
Sources: U.S. Census Bureau historical county population (Forstall 1790–1990) and public-domain / CC0 county population series through 2020.
Cemeteries & historical places
USGS GNIS11 cemeteries and 0 historical populated places (ghost towns / former settlements) recorded in USGS GNIS for this county.
Cemeteries — 11 of 11 listed
| Name |
|---|
| Carroll Township Cemetery |
| Cedar Lutheran Cemetery |
| DeSart Cemetery |
| Lebanon Lutheran Cemetery |
| Norman Lutheran Cemetery |
| Peaceful Valley Cemetery |
| Pierce Congregational Cemetery |
| Riverside Cemetery |
| Saint Paul Cemetery |
| Saints Peter and Paul Catholic Cemetery |
| Shollsmade Cemetery |
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 Slope County, North Dakota
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