In Delaware County there is 1 residential DSL provider covering 84.82% of the county. The average home can get speeds up to 110 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 Delaware County, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Delaware County, IA please click below.
Delaware County, IA Availability Maps
DSL Internet Service Provider in Delaware 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 Delaware County are not shown.
Delaware 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 Delaware County is DSL internet available?
DSL Internet Availability Key
DSL is available in 84.82% of Delaware 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 Delaware County above to see who has service at your home.
How fast is DSL internet in Delaware County?
The map below shows maximum DSL internet speeds by area in Delaware County.
DSL Internet Speed Key
The average Delaware County home can get up to 110 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 300 Mbps, which 1.60% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 20.40% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Delaware County.
DSL internet speeds tend to be faster in the south parts of Delaware County, and slower in the northwest areas of the county.
Is DSL the fastest internet I can get in Delaware County?
The fastest internet for you may vary based on where in Delaware County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 83.47% of Delaware County homes.
- Cable is fastest for 4.82% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 10.85%.
- Satellite internet may be the only option for less than 1% of Delaware County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Delaware County, along with details on where in Delaware County and at what speeds.
Windstream DSL in Delaware County, IA
Windstream DSL coverage
About 84.17%, or 14,720 people, have Windstream DSL internet available to them in the county. The company covers the entire Delaware County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in much of Delaware County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Delaware County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 6 different maximum speeds throughout Delaware County. The fastest plan anyone in Delaware 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 Delaware County customers is up to 110 Mbps.
Show all download speeds
- 1.9% up to 300.0 Mbps
- 34.3% up to 200.0 Mbps
- 27.8% up to 100.0 Mbps
- 11.3% up to 50.0 Mbps
- 1.0% up to 25.0 Mbps
- 23.7% up to 10.0 Mbps
Windstream DSL upload speeds
In Delaware 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 Delaware 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 Delaware 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 30 Mbps.
Show all upload speeds
- 2.1% up to 83.0 Mbps
- 42.2% up to 52.0 Mbps
- 6.8% up to 32.0 Mbps
- 7.1% up to 23.0 Mbps
- 0.1% up to 20.0 Mbps
- 5.4% up to 17.0 Mbps
- 0.3% up to 15.0 Mbps
- 5.2% up to 12.0 Mbps
- 0.7% up to 10.0 Mbps
- 6.4% up to 3.0 Mbps
- 23.7% up to 1.0 Mbps
Delaware County DSL by Area
This information is most helpful to those looking for homes or considering moving to Delaware County or any of the areas nearby.
How does DSL internet in Delaware County compare to the rest of Iowa?
DSL internet speeds in Delaware County are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 110 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Iowa is 0.00% versus 84.82% in Delaware County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Delaware 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
- Buchanan County, IA: less DSL coverage, slower speeds
- Dubuque County, IA: more DSL coverage, slower speeds
- Black Hawk County, IA: more DSL coverage, slower speeds
- Jo Daviess County, IL: less DSL coverage, slower speeds
- Grundy County, IA: less DSL coverage, slower speeds
- Stephenson County, IL: less DSL coverage, slower speeds
- Hardin County, IA: less DSL coverage, slower speeds
- Winnebago County, IL: less DSL coverage, slower speeds
- Hamilton County, IA: less DSL coverage, slower speeds
- Webster County, IA: less DSL coverage, slower speeds
Counties with Similar Populations
- Panola County, TX: less DSL coverage, slower speeds
- Oregon County, MO: less DSL coverage, slower speeds
- Osceola County, MI: less DSL coverage, slower speeds
- Otoe County, NE: more DSL coverage, slower speeds
- Ouachita County, AR: less DSL coverage, slower speeds
- Owen County, IN: less DSL coverage, slower speeds
- Owen County, KY: less DSL coverage, slower speeds
- Owyhee County, ID: less DSL coverage, slower speeds
- Ozark County, MO: less DSL coverage, slower speeds
- Pacific County, WA: more DSL coverage, slower speeds