In Grundy County there are 2 residential DSL providers covering 74.58% of the county. The average home can get speeds up to 95 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all DSL internet providers in Grundy County, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Grundy County, IA please click below.
Grundy County, IA Availability Maps
DSL Internet Service Providers in Grundy County
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Grundy County are not shown.
Grundy County Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Grundy County is DSL internet available?
DSL Internet Availability Key
DSL is available in 74.58% of Grundy County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Windstream. Call one of the companies with service in Grundy County above to see who has service at your home.
How fast is DSL internet in Grundy County?
The map below shows maximum DSL internet speeds by area in Grundy County.
DSL Internet Speed Key
The average Grundy County home can get up to 95 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 300 Mbps, which 3.73% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 28.67% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Grundy County.
DSL internet speeds tend to be faster in the west parts of Grundy County, and slower in the southwest areas of the county.
Is DSL the fastest internet I can get in Grundy County?
The fastest internet for you may vary based on where in Grundy County you live. In general, fixed wireless competes most often with DSL in the county.
- Fiber is the fastest internet type for 40.12% of Grundy County homes.
- Cable is fastest for 15.74% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 44.11%.
- Satellite internet may be the only option for less than 1% of Grundy County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Grundy County, along with details on where in Grundy County and at what speeds.
Windstream DSL in Grundy County, IA
Windstream DSL coverage
About 52.19%, or 6,434 people, have Windstream DSL internet available to them in the county. The company covers the entire Grundy County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Grundy County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Grundy County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 6 different maximum speeds throughout Grundy County. The fastest plan anyone in Grundy County can order from Windstream goes up to 300 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Grundy County customers is up to 131 Mbps.
Show all download speeds
- 7.1% up to 300.0 Mbps
- 32.3% up to 200.0 Mbps
- 39.9% up to 100.0 Mbps
- 7.4% up to 50.0 Mbps
- 0.2% up to 25.0 Mbps
- 13.1% up to 10.0 Mbps
Windstream DSL upload speeds
In Grundy County download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and the fastest compared to other Grundy County DSL providers. Windstream offers 11 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Grundy County is up to 83 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 37 Mbps.
Show all upload speeds
- 8.5% up to 83.0 Mbps
- 2.8% up to 69.0 Mbps
- 38.3% up to 52.0 Mbps
- 0.3% up to 50.0 Mbps
- 12.3% up to 32.0 Mbps
- 9.2% up to 23.0 Mbps
- 0.3% up to 20.0 Mbps
- 7.4% up to 17.0 Mbps
- 3.8% up to 12.0 Mbps
- 3.8% up to 3.0 Mbps
- 13.1% up to 1.0 Mbps
Centurylink DSL in Grundy County, IA
Centurylink DSL coverage
About 22.74%, or 2,804 people, have Centurylink DSL internet available to them in the county. The company covers the northeast, north, east, and northwest Grundy County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Grundy County.
Centurylink DSL download speeds
Centurylink is the slowest when comparing download speeds to all other internet providers in Grundy County. Versus other DSL providers in the area, Centurylink DSL is the slowest. There are 3 different maximum speeds throughout Grundy County. The fastest plan anyone in Grundy County can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Grundy County customers is up to 12 Mbps.
Show all download speeds
- 1.9% up to 100.0 Mbps
- 0.6% up to 40.0 Mbps
- 97.5% up to 10.0 Mbps
Centurylink DSL upload speeds
In Grundy County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is the slowest where upload speeds are concerned, and the slowest compared to other Grundy County DSL providers. Centurylink offers 3 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Grundy County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 1.2 Mbps.
Show all upload speeds
- 1.9% up to 10.0 Mbps
- 0.6% up to 3.0 Mbps
- 97.5% up to 1.0 Mbps
Grundy County DSL by Area
This information is most helpful to those looking for homes or considering moving to Grundy County or any of the areas nearby.
How does DSL internet in Grundy County compare to the rest of Iowa?
DSL internet speeds in Grundy County are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 95 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Iowa is 0.00% versus 74.58% in Grundy County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Grundy County are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does DSL internet look like in other counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Black Hawk County, IA: more DSL coverage, slower speeds
- Hardin County, IA: less DSL coverage, slower speeds
- Buchanan County, IA: less DSL coverage, slower speeds
- Hamilton County, IA: less DSL coverage, slower speeds
- Delaware County, IA: more DSL coverage, faster speeds
- Webster County, IA: less DSL coverage, slower speeds
- Calhoun County, IA: more DSL coverage, slower speeds
- Dubuque County, IA: more DSL coverage, slower speeds
- Sac County, IA: less DSL coverage, slower speeds
- Jo Daviess County, IL: less DSL coverage, slower speeds
Counties with Similar Populations
- Crawford County, MI: less DSL coverage, slower speeds
- Cumberland County, VA: less DSL coverage, slower speeds
- Cumberland County, KY: more DSL coverage, slower speeds
- Cumberland County, IL: less DSL coverage, slower speeds
- Crowley County, CO: more DSL coverage, slower speeds
- Cross County, AR: less DSL coverage, slower speeds
- Crosby County, TX: more DSL coverage, slower speeds
- Crook County, WY: less DSL coverage, slower speeds
- Crockett County, TX: less DSL coverage, slower speeds
- Crockett County, TN: more DSL coverage, slower speeds