Iowa Internet Overview
963 Mbps avg · 970 ZIP codes · 100% fiber · 99 counties
County Grade Distribution
Best Broadband Counties in Iowa
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Wayne | A | 1000 Mbps | 100% | 8 |
| Story | A | 1000 Mbps | 100% | 15 |
| Mahaska | A | 1000 Mbps | 100% | 9 |
| Greene | A | 1000 Mbps | 100% | 7 |
| Decatur | A | 1000 Mbps | 100% | 7 |
| Bremer | A | 1000 Mbps | 100% | 8 |
| O'Brien | A | 1000 Mbps | 100% | 8 |
| Clay | A | 1000 Mbps | 100% | 10 |
| Carroll | A | 1000 Mbps | 100% | 11 |
| Benton | A | 1000 Mbps | 100% | 16 |
| Davis | A | 1000 Mbps | 100% | 4 |
| Scott | A | 1000 Mbps | 100% | 20 |
| Plymouth | A | 1000 Mbps | 100% | 11 |
| Muscatine | A | 1000 Mbps | 100% | 9 |
| Guthrie | A | 1000 Mbps | 100% | 10 |
Slowest Counties in Iowa
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Ida | C | 100 Mbps | 100% | 6 |
| Ringgold | C | 1000 Mbps | 100% | 7 |
| Adams | C | 1000 Mbps | 100% | 4 |
| Buena Vista | C | 1000 Mbps | 100% | 8 |
| Pocahontas | B | 1000 Mbps | 100% | 9 |
| Monona | B | 1000 Mbps | 100% | 9 |
| Monroe | B | 1000 Mbps | 100% | 3 |
| Grundy | B | 1000 Mbps | 100% | 9 |
| Dickinson | B | 1000 Mbps | 100% | 7 |
| Audubon | B | 1000 Mbps | 100% | 6 |
| Jasper | B | 1000 Mbps | 100% | 12 |
| Madison | B | 1000 Mbps | 100% | 12 |
| Taylor | B | 1000 Mbps | 100% | 7 |
| Winneshiek | B | 1000 Mbps | 100% | 7 |
| Tama | B | 1000 Mbps | 100% | 12 |
All 99 Counties in Iowa
Internet Providers in Iowa
| Provider | ZIP Codes | Max Speed |
|---|---|---|
| T-Mobile | 970 | 25 Mbps |
| Lumen (CenturyLink) | 970 | 940 Mbps |
| United States Cellular Corporation | 970 | 2 Mbps |
| Rise Broadband | 970 | 250 Mbps |
| Windstream | 970 | 300 Mbps |
| Texas | 970 | 100 Mbps |
| Ltd Broadband | 970 | 250 Mbps |
| Mediacom | 970 | 1,000 Mbps |
Cities in Iowa
Neighboring States
See how your connection compares to the 963 Mbps average in Iowa.
Frequently Asked Questions
What is the average internet speed in Iowa?
Iowa has an average maximum download speed of 963 Mbps across 970 ZIP codes. 100% of areas have fiber internet access, and the state averages 10 providers per ZIP code.
Which counties in Iowa have the best internet?
The counties with the best broadband in Iowa include Wayne (Grade A), Story (Grade A), Mahaska (Grade A). These areas have the fastest average speeds and most provider competition.
How does Iowa compare to the national average?
The national average download speed is 876 Mbps, while Iowa averages 963 Mbps, above the national average. Nationally, 96% of areas have fiber, compared to 100% in Iowa.
The this entity record above pulls directly from the FCC Broadband Data Collection (BDC). What follows is the per-entity context — how this entity sits in the broader U.S. internet availability and broadband speed distribution and which underlying factors drive the headline numbers.
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.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FCC Broadband Data Collection, 2026.