| ZIP Codes: | 19 ZIP Codes (16 Standard, 2 PO Box, 1 Unique) [See All] |
| Area Code: | 701 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:01 PM |
| Population: | 72,799 [See All] |
| FIPS: | 38035 |
| CBSA: | Grand Forks, ND-MN |
| Land Area: | 1,333 sq mi |
| Water Area: | 3 sq mi |
| Coordinates: | 47.9320, -97.3272 |
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72,799 residents live across 19 ZIPs covering 1,333 sq mi, served by 13 distinct USPS-recognized cities.
Population moved from 68,236 to 72,799 from 2014 to 2024 — a +6.7% change. 7 ZIPs gained residents, 9 lost.
The county's wealthiest ZIP 58214 (Arvilla, $111,944 median) and poorest ZIP 58202 (Grand Forks, $29,600) are 20.0 miles apart — a 3.8× income gap across local geography.
Median home values vary 42.1× across this county — from $9,999 in 58204 (Grand Forks Afb) to $420,500 in 58214 (Arvilla).
Density varies 961× across the county — from 5 people/sq mi in 58214 (Arvilla) to 5,101 in 58202 (Grand Forks).
Educational attainment ranges from 25.5% bachelor's+ in 58256 (Manvel) to 41.1% in 58278 (Thompson) — the breadth of educational profiles across the area.
Within North Dakota, this is the #3 most populous of 64 counties and ranks #11 for median household income with the #11 fastest decade growth .
Hosts 1 single-entity Unique ZIP: 58207Gfafb Postal Service Center .
Weighted by population, the typical household earns about $68,613 across the county — reflecting what a typical resident sees, not a simple ZIP average.
38.1% of adults age 25+ hold a bachelor's degree or higher (16,549 of 43,465 reporting).
16 Standard delivery, 2 PO Box only, 1 single-entity Unique ZIPs serve this county.
1 ZIP in this county where more than 60% of adults 25+ hold a bachelor's degree — typically college campuses, research enclaves, or tech corridors.
Median household income spans 3.8× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
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 |
|---|---|---|---|---|---|---|
| 58201 | Grand Forks | Standard | 42,373 | $68,143 | 74.5 | 16.3% |
| 58203 | Grand Forks | Standard | 16,478 | $60,474 | 72.3 | -9.0% |
| 58202 | Grand Forks | Standard | 2,865 | $29,600 | 0.6 | 51.3% |
| 58278 | Thompson | Standard | 2,168 | $111,250 | 107.6 | 13.9% |
| 58251 | Larimore | Standard | 2,016 | $100,625 | 181.1 | -12.4% |
| 58204 | Grand Forks Afb | Standard | 1,834 | $73,145 | 0.7 | -5.5% |
| 58267 | Northwood | Standard | 1,569 | $88,015 | 232.2 | 17.4% |
| 58275 | Reynolds | Standard | 713 | $105,385 | 113.5 | -10.0% |
| 58256 | Manvel | Standard | 705 | $91,125 | 89.7 | -26.9% |
| 58228 | Emerado | Standard | 640 | $70,625 | 101.9 | -24.4% |
| 58235 | Gilby | Standard | 513 | $81,042 | 81.0 | 16.9% |
| 58214 | Arvilla | Standard | 387 | $111,944 | 72.9 | 44.9% |
| 58258 | Mekinock | Standard | 261 | $56,071 | 42.9 | 1.2% |
| 58205 | Grand Forks Afb | Standard | 153 | — | 7.6 | -65.7% |
| 58266 | Niagara | Standard | 74 | $88,889 | 124.2 | -57.2% |
| 58244 | Inkster | Standard | 50 | $175,313 | 30.5 | -60.9% |
| 58207 | Grand Forks | Unique | — | — | 0.0 | — |
| 58208 | Grand Forks | PO Box | — | — | 0.0 | — |
| 58206 | Grand Forks | PO Box | — | — | 0.0 | — |