Dunn County Internet
Dunn County, North Dakota has a Broadband Grade of A with an average download speed of 1000 Mbps across 7 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is above average for the U.S.
ZIP Code Grades in Dunn County
Fastest ZIP Codes in Dunn County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 58625 | A | 1000 Mbps | 10 | Yes |
| 58626 | A | 1000 Mbps | 10 | Yes |
| 58636 | A | 1000 Mbps | 10 | Yes |
| 58640 | A | 1000 Mbps | 10 | Yes |
| 58642 | A | 1000 Mbps | 10 | Yes |
| 58644 | A | 1000 Mbps | 10 | Yes |
| 58757 | A | 1000 Mbps | 10 | Yes |
Slowest ZIP Codes in Dunn County
| ZIP | Grade | Download | Providers | Fiber |
|---|---|---|---|---|
| 58625 | A | 1000 Mbps | 10 | Yes |
| 58626 | A | 1000 Mbps | 10 | Yes |
| 58636 | A | 1000 Mbps | 10 | Yes |
| 58640 | A | 1000 Mbps | 10 | Yes |
| 58642 | A | 1000 Mbps | 10 | Yes |
| 58644 | A | 1000 Mbps | 10 | Yes |
| 58757 | A | 1000 Mbps | 10 | Yes |
Frequently Asked Questions
What is the average internet speed in Dunn County, North Dakota?
Dunn County, North Dakota has an average maximum download speed of 1000 Mbps across 7 ZIP codes. The county received a Broadband Grade of A (100/100), which factors in download speed, provider competition, fiber availability, and upload speed. This meets the FCC broadband standard of 100 Mbps download.
How many internet providers are in Dunn County?
Dunn County has an average of 10 internet providers per ZIP code. 100% of ZIP codes in the county have fiber internet access. Having 3 or more providers typically leads to better prices and service quality through competition.
Is there fiber internet in Dunn County?
100% of ZIP codes in Dunn County, North Dakota have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber coverage in this county is above the national average.
What is the best ZIP code for internet in Dunn County?
The best-connected ZIP code in Dunn County is 58625 with a Broadband Grade of A, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.
See how your connection compares to Dunn County's 1000 Mbps average.
For this entity, the underlying data on this page comes from the FCC Broadband Data Collection (BDC). The breakdown above is the federal record; the paragraphs below add the per-entity context that makes the headline numbers usable for a real decision rather than just a data lookup.
The methodology behind every numeric value on this page is publicly documented on the the FCC Broadband Data Collection (BDC) portal and described in detail on this site’s methodology page. Refresh cadence varies by underlying series; the page surfaces the as-of date for each number so readers can trace any figure back to the source release.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FCC Broadband Data Collection, 2026.