In Marshall County there are 3 residential DSL providers covering 85.04% of the county. The average home can get speeds up to 35 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 Marshall County, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Marshall County, IA please click below.
Marshall County, IA Availability Maps
DSL Internet Service Providers in Marshall 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 Marshall County are not shown.
Marshall 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 Marshall County is DSL internet available?
DSL Internet Availability Key
DSL is available in 85.04% of Marshall 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 Marshall County above to see who has service at your home.
How fast is DSL internet in Marshall County?
The map below shows maximum DSL internet speeds by area in Marshall County.
DSL Internet Speed Key
The average Marshall County home can get up to 35 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 200 Mbps, which 1.85% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 63.06% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Marshall County.
DSL internet speeds tend to be faster in the southeast parts of Marshall County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Marshall County?
The fastest internet for you may vary based on where in Marshall County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 92.90% of Marshall County homes.
- Cable is fastest for less than 1% of the county.
- DSL is fastest for 1.28%.
- Fixed wireless is fastest for 3.92%.
- Satellite internet may be the only option for 1.33% of Marshall County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Marshall County, along with details on where in Marshall County and at what speeds.
Centurylink DSL in Marshall County, IA
Centurylink DSL coverage
About 71.03%, or 28,486 people, have Centurylink DSL internet available to them in the county. The company covers the entire Marshall County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Marshall County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Marshall County. Versus other DSL providers in the area, Centurylink DSL is below average. There are 5 different maximum speeds throughout Marshall County. The fastest plan anyone in Marshall 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 Marshall County customers is up to 20 Mbps.
Show all download speeds
- 10.3% up to 100.0 Mbps
- 0.4% up to 80.0 Mbps
- 0.4% up to 60.0 Mbps
- 0.8% up to 40.0 Mbps
- 88.1% up to 10.0 Mbps
Centurylink DSL upload speeds
In Marshall 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 below average compared to other Marshall County DSL providers. Centurylink offers 4 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 Marshall 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 2.0 Mbps.
Show all upload speeds
- 10.7% up to 10.0 Mbps
- 0.4% up to 5.0 Mbps
- 0.8% up to 3.0 Mbps
- 88.1% up to 1.0 Mbps
Partner Communications Cooperative DSL in Marshall County, IA
Partner Communications Cooperative DSL coverage
About 10.86%, or 4,356 people, have Partner Communications Cooperative DSL internet available to them in the county. The company covers the southwest, west, southeast, and northwest Marshall County area. Partner Communications Cooperative is a small internet service provider internet service providers in the US, with internet service available in a very small piece of Marshall County.
Partner Communications Cooperative DSL download speeds
Partner Communications Cooperative is below average when comparing download speeds to all other internet providers in Marshall County. Versus other DSL providers in the area, Partner Communications Cooperative DSL is above average. There are no different maximum speeds throughout Marshall County. The fastest plan anyone in Marshall County can order from Partner Communications Cooperative goes up to 100 Mbps, and all Marshall County customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Partner Communications Cooperative DSL upload speeds
In Marshall County download speeds tend to be faster than than upload speeds for Partner Communications Cooperative DSL. Compared to other ISPs, Partner Communications Cooperative is below average where upload speeds are concerned, and the fastest compared to other Marshall County DSL providers. Partner Communications Cooperative offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Marshall County is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
Windstream DSL in Marshall County, IA
Windstream DSL coverage
About 3.46%, or 1,387 people, have Windstream DSL internet available to them in the county. The company covers the southeast, east, northeast, west, southwest, and south Marshall 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 Marshall County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Marshall County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 5 different maximum speeds throughout Marshall County. The fastest plan anyone in Marshall County can order from Windstream goes up to 200 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Marshall County customers is up to 133 Mbps.
Show all download speeds
- 53.5% up to 200.0 Mbps
- 22.6% up to 100.0 Mbps
- 0.9% up to 50.0 Mbps
- 3.1% up to 25.0 Mbps
- 19.8% up to 10.0 Mbps
Windstream DSL upload speeds
In Marshall 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 above average compared to other Marshall County DSL providers. Windstream offers 7 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 Marshall County is up to 52 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 36 Mbps.
Show all upload speeds
- 62.1% up to 52.0 Mbps
- 5.7% up to 32.0 Mbps
- 3.9% up to 23.0 Mbps
- 4.4% up to 17.0 Mbps
- 0.9% up to 12.0 Mbps
- 3.1% up to 3.0 Mbps
- 19.8% up to 1.0 Mbps
Marshall County DSL by Area
This information is most helpful to those looking for homes or considering moving to Marshall County or any of the areas nearby.
How does DSL internet in Marshall County compare to the rest of Iowa?
DSL internet speeds in Marshall County are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 35 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Iowa is 0.00% versus 85.04% in Marshall County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Marshall 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
- Tama County, IA: less DSL coverage, faster speeds
- Story County, IA: less DSL coverage, faster speeds
- Benton County, IA: less DSL coverage, faster speeds
- Boone County, IA: less DSL coverage, faster speeds
- Linn County, IA: more DSL coverage, faster speeds
- Greene County, IA: less DSL coverage, faster speeds
- Jones County, IA: less DSL coverage, slower speeds
- Carroll County, IA: less DSL coverage, faster speeds
- Jackson County, IA: less DSL coverage, faster speeds
- Crawford County, IA: less DSL coverage, faster speeds
Counties with Similar Populations
- Amador County, CA: less DSL coverage, faster speeds
- Waldo County, ME: less DSL coverage, slower speeds
- Barren County, KY: less DSL coverage, faster speeds
- Baldwin County, GA: more DSL coverage, faster speeds
- Avoyelles Parish, LA: less DSL coverage, slower speeds
- Auglaize County, OH: less DSL coverage, slower speeds
- Atascosa County, TX: less DSL coverage, slower speeds
- Allegany County, NY: less DSL coverage, faster speeds
- Albany County, WY: more DSL coverage, slower speeds
- Aguada Municipio, PR: less DSL coverage, slower speeds