Marmarth city, North Dakota
Official LSAD Designation: Marmarth city • Census GEOID: 3850860
• Slope County
Marmarth city is an incorporated city in Slope County, North Dakota. According to official records from the Census (2025), Marmarth city had an estimated population of 91 residents. Official Census Bureau geographic records classify this community under LSAD designation Marmarth city (GEOID 3850860).
Local Government Administration U.S. Census Bureau GMAF
City Of Marmarth
Municipal
Official Title:
President
Address:
PO BOX 79, MARMARTH ND 58643-0079
County Of Slope
County
Official Title:
Auditor
Address:
PO BOX NN, AMIDON ND 58620
Civic & Statistical Snapshot
| Category | Estimate | Survey Period / Source |
|---|---|---|
| Total Population | 91 | 2025 |
| Median Household Income | $62,813 | 2020-2024 |
| Median Home Value | $48,100 | 2020-2024 |
| Land Area | 2.58 sq mi | Gazetteer (2026) |
| Civic & Public Services | Hospitals, Libraries, Colleges | CMS / IMLS / IPEDS |
| Schools & Districts | NCES Directory Listings | Provided by k12guides.com |
| Nearby Airports | Landing Facilities | Provided by airport-data.com |
| Climate & Weather | NOAA 30-Year Normals | 1991–2020 |
Source: U.S. Census Bureau (PEP, ACS 5-Year).