In Dubuque County there are 2 residential DSL providers covering 86.76% of the county. The average home can get speeds up to 83 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 Dubuque County, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Dubuque County, IA please click below.
Dubuque County, IA Availability Maps
DSL Internet Service Providers in Dubuque 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 Dubuque County are not shown.
Dubuque 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 Dubuque County is DSL internet available?
DSL Internet Availability Key
DSL is available in 86.76% of Dubuque County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. Call one of the companies with service in Dubuque County above to see who has service at your home.
How fast is DSL internet in Dubuque County?
The map below shows maximum DSL internet speeds by area in Dubuque County.
DSL Internet Speed Key
The average Dubuque County home can get up to 83 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 300 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 23.66% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Dubuque County.
DSL internet speeds tend to be faster in the northwest parts of Dubuque County, and slower in the east areas of the county.
Is DSL the fastest internet I can get in Dubuque County?
The fastest internet for you may vary based on where in Dubuque County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 87.83% of Dubuque County homes.
- Cable is fastest for 9.59% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.48%.
- Satellite internet may be the only option for less than 1% of Dubuque County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Dubuque County, along with details on where in Dubuque County and at what speeds.
Centurylink DSL in Dubuque County, IA
Centurylink DSL coverage
About 74.70%, or 74,150 people, have Centurylink DSL internet available to them in the county. The company covers the northeast, north, east, central, south, southeast, and northwest Dubuque County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Dubuque County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Dubuque County. Versus other DSL providers in the area, Centurylink DSL is above average. There are 7 different maximum speeds throughout Dubuque County. The fastest plan anyone in Dubuque County can order from Centurylink goes up to 140 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Dubuque County customers is up to 80 Mbps.
Show all download speeds
- 26.7% up to 140.0 Mbps
- 0.2% up to 120.0 Mbps
- 29.7% up to 100.0 Mbps
- 7.7% up to 80.0 Mbps
- 3.7% up to 60.0 Mbps
- 4.6% up to 40.0 Mbps
- 27.3% up to 10.0 Mbps
Centurylink DSL upload speeds
In Dubuque County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and average compared to other Dubuque County DSL providers. Centurylink offers 6 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 Dubuque County is up to 40 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 10 Mbps.
Show all upload speeds
- 1.4% up to 40.0 Mbps
- 26.7% up to 20.0 Mbps
- 36.3% up to 10.0 Mbps
- 3.8% up to 5.0 Mbps
- 4.5% up to 3.0 Mbps
- 27.3% up to 1.0 Mbps
Windstream DSL in Dubuque County, IA
Windstream DSL coverage
About 12.11%, or 12,023 people, have Windstream DSL internet available to them in the county. The company covers the southwest, west, northwest, and south Dubuque County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Dubuque County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Dubuque County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 5 different maximum speeds throughout Dubuque County. The fastest plan anyone in Dubuque 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 Dubuque County customers is up to 97 Mbps.
Show all download speeds
- 0.6% up to 300.0 Mbps
- 25.0% up to 200.0 Mbps
- 37.0% up to 100.0 Mbps
- 10.2% up to 50.0 Mbps
- 27.3% up to 10.0 Mbps
Windstream DSL upload speeds
In Dubuque 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 Dubuque County DSL providers. Windstream offers 9 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 Dubuque 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 27 Mbps.
Show all upload speeds
- 1.0% up to 83.0 Mbps
- 35.1% up to 52.0 Mbps
- 0.0% up to 50.0 Mbps
- 12.4% up to 32.0 Mbps
- 9.6% up to 23.0 Mbps
- 4.4% up to 17.0 Mbps
- 6.4% up to 12.0 Mbps
- 3.7% up to 3.0 Mbps
- 27.3% up to 1.0 Mbps
Dubuque County DSL by Area
This information is most helpful to those looking for homes or considering moving to Dubuque County or any of the areas nearby.
How does DSL internet in Dubuque County compare to the rest of Iowa?
DSL internet speeds in Dubuque County are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 83 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Iowa is 0.00% versus 86.76% in Dubuque County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Dubuque 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
- Jo Daviess County, IL: less DSL coverage, slower speeds
- Delaware County, IA: less DSL coverage, faster speeds
- Buchanan County, IA: less DSL coverage, slower speeds
- Stephenson County, IL: less DSL coverage, slower speeds
- Black Hawk County, IA: less DSL coverage, slower speeds
- Winnebago County, IL: less DSL coverage, slower speeds
- Grundy County, IA: less DSL coverage, faster speeds
- Hardin County, IA: less DSL coverage, slower speeds
- Lake County, IL: more DSL coverage, slower speeds
- Kenosha County, WI: less DSL coverage, slower speeds
Counties with Similar Populations
- Story County, IA: less DSL coverage, slower speeds
- Wayne County, NY: less DSL coverage, slower speeds
- Fairbanks North Star Borough, AK: less DSL coverage, slower speeds
- Floyd County, GA: less DSL coverage, slower speeds
- Victoria County, TX: less DSL coverage, slower speeds
- Twin Falls County, ID: more DSL coverage, slower speeds
- Tuscarawas County, OH: less DSL coverage, slower speeds
- Garland County, AR: less DSL coverage, slower speeds
- Geauga County, OH: more DSL coverage, faster speeds
- Grafton County, NH: more DSL coverage, slower speeds