| ZIP Codes: | 13 ZIP Codes (13 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Code: | 701 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 11:54:21 PM |
| Population: | 10,176 [See All] |
| FIPS: | 38055 |
| Land Area: | 2,380 sq mi |
| Water Area: | 191 sq mi |
| Coordinates: | 47.5819, -101.1308 |
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10,176 residents live across 13 ZIPs covering 2,380 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 9,909 to 10,176 from 2014 to 2024 — a +2.7% change. 7 ZIPs gained residents, 5 lost (and 1 held flat).
The county's wealthiest ZIP 58778 (Ruso, $148,777 median) and poorest ZIP 58775 (Roseglen, $49,844) are 41.0 miles apart — a 3.0× income gap across local geography.
Median home values vary 3.1× across this county — from $119,000 in 58723 (Butte) to $372,700 in 58778 (Ruso).
Density varies 50× across the county — from 1 people/sq mi in 58723 (Butte) to 61 in 58565 (Riverdale).
Educational attainment ranges from 18.3% bachelor's+ in 58723 (Butte) to 62.6% in 58778 (Ruso) — the breadth of educational profiles across the area.
Within North Dakota, this is the #15 most populous of 64 counties and ranks #21 for median household income .
Weighted by population, the typical household earns about $82,024 across the county — reflecting what a typical resident sees, not a simple ZIP average.
25.6% of adults age 25+ hold a bachelor's degree or higher (1,927 of 7,529 reporting).
13 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.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 58540 | Garrison | Standard | 2,634 | $76,319 | 468.4 | 9.8% |
| 58577 | Washburn | Standard | 1,954 | $74,471 | 220.7 | 8.1% |
| 58576 | Underwood | Standard | 1,063 | $102,614 | 170.2 | 22.0% |
| 58579 | Wilton | Standard | 1,001 | $93,750 | 233.2 | -28.1% |
| 58575 | Turtle Lake | Standard | 910 | $83,214 | 224.0 | 5.2% |
| 58759 | Max | Standard | 756 | $87,321 | 234.8 | -22.1% |
| 58559 | Mercer | Standard | 411 | $80,000 | 156.2 | 114.1% |
| 58716 | Benedict | Standard | 308 | $61,959 | 73.8 | 115.4% |
| 58531 | Coleharbor | Standard | 303 | $81,071 | 169.8 | -10.1% |
| 58723 | Butte | Standard | 244 | $59,615 | 202.8 | 12.4% |
| 58775 | Roseglen | Standard | 218 | $49,844 | 79.8 | -30.8% |
| 58565 | Riverdale | Standard | 187 | $73,333 | 3.1 | -12.6% |
| 58778 | Ruso | Standard | 187 | $148,777 | 142.8 | 0.0% |