| ZIP Codes: | 2 ZIP Codes (2 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 701 |
| Timezone: | Mountain (GMT -07:00) |
| Local Time: | 2:13:03 PM |
| Population: | 273 [See All] |
| FIPS: | 38087 |
| Land Area: | 504 sq mi |
| Water Area: | 2 sq mi |
| Coordinates: | 46.4060, -103.6281 |
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273 residents live across 2 ZIPs covering 504 sq mi, served by 2 distinct USPS-recognized cities.
Population moved from 347 to 273 from 2014 to 2024 — a -21.3% change. 0 ZIPs gained residents, 2 lost.
The county's wealthiest ZIP 58620 (Amidon, $76,875 median) and poorest ZIP 58643 (Marmarth, $62,188) are 31.5 miles apart — a 1.2× income gap across local geography.
Density varies 1× across the county — from 1 people/sq mi in 58620 (Amidon) to 1 in 58643 (Marmarth).
Educational attainment ranges from 25.3% bachelor's+ in 58643 (Marmarth) to 50.0% in 58620 (Amidon) — the breadth of educational profiles across the area.
Within North Dakota, this is the #63 most populous of 64 counties and ranks #43 for median household income .
Weighted by population, the typical household earns about $70,473 across the county — reflecting what a typical resident sees, not a simple ZIP average.
38.9% of adults age 25+ hold a bachelor's degree or higher (82 of 211 reporting).
2 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.
Slope County lost 21.3% of residents between 2014 and 2024.