In Diagonal there are 7 residential internet providers covering 99.52% of the city. The average home can get speeds up to 777 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.
Jump to Availability Maps
7 Internet Service Providers in Diagonal
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 Diagonal are not shown.
Diagonal 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
Availability maps for all providers in Diagonal
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
Please note some providers will take longer to load than others
Internet service is available in 99.52% of Diagonal. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is Nextlink. Now you can call companies in Diagonal with more confidence that they might be available.
How fast are internet speeds in Diagonal?
The map below shows maximum internet speeds by area in Diagonal.
Internet Speed Key
The average Diagonal home can get up to 777 Mbps on their internet plan. For most people, the fastest download speed in the city is 1,000 Mbps, which 65.32% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 1.29% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Diagonal.
Internet speeds tend to be faster in the east parts of Diagonal, and slower in the northeast areas of the city.
What type of internet should I choose in Diagonal?
The fastest internet for you may vary based on where in Diagonal you live. If speed is your main concern, fixed wireless will be the fastest internet in the city.
- Fiber is the fastest internet type for less than 1% of Diagonal homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for 4.35%.
- Fixed wireless is fastest for 95.16%.
- Satellite internet may be the only option for less than 1% of Diagonal homes.
Internet Market Health in Diagonal
Internet Competition Key
The map shows how competitive the Diagonal internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Diagonal based on what connections the average home has availabile:
- Average number of internet service providers to a home: 3.5 (unhealthy)
- Average types of service (fiber, cable, DSL, etc): 1.8 (very unhealthy)
- Average providers with broadband (25 Mbps+) speeds: 2.7 (very unhealthy)
Overall, competition is very unhealthy.
Diagonal internet customers have the ability to buy internet service from 1 to 5 different providers, depending on where they live. For different types of service, Diagonal homes have between 1 and 2 options. The type(s) of service available are fixed wireless and dsl, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Diagonal internet customers who want faster speeds have between 0 and 4 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Diagonal badly needs improvement.
TV & Internet Providers in Depth
Below you'll find which TV and internet providers offer service in Diagonal, along with details on where in Diagonal and at what speeds.
Windstream DSL in Diagonal, IA
Windstream DSL coverage
About 79.84%, or 495 people, have Windstream DSL internet available to them in the city. The company covers the entire Diagonal area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in much of Diagonal.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Diagonal. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 4 different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from Windstream goes up to 200 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Diagonal customers is up to 120 Mbps.
Show all download speeds
- 45.7% up to 200.0 Mbps
- 25.3% up to 100.0 Mbps
- 1.0% up to 50.0 Mbps
- 28.1% up to 10.0 Mbps
Windstream DSL upload speeds
In Diagonal 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 Diagonal DSL providers. Windstream offers 7 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Diagonal 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 35 Mbps.
Show all upload speeds
- 59.2% up to 52.0 Mbps
- 2.0% up to 50.0 Mbps
- 5.1% up to 32.0 Mbps
- 4.6% up to 17.0 Mbps
- 0.2% up to 12.0 Mbps
- 0.8% up to 3.0 Mbps
- 28.1% up to 1.0 Mbps
Nextlink Fixed Wireless in Diagonal, IA
Nextlink fixed wireless coverage
About 93.06%, or 577 people, have Nextlink fixed wireless internet available to them in the city. The company covers the entire Diagonal area. Nextlink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Diagonal.
Nextlink fixed wireless download speeds
Nextlink is the fastest when comparing download speeds to all other internet providers in Diagonal. Versus other fixed wireless providers in the area, Nextlink fixed wireless is the fastest. There are 4 different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from Nextlink goes up to 1,000 Mbps, the slowest package only goes up to 300 Mbps, and the city-wide average maximum speed for Diagonal customers is up to 824 Mbps.
Show all download speeds
- 70.2% up to 1,000.0 Mbps
- 15.3% up to 500.0 Mbps
- 2.4% up to 400.0 Mbps
- 12.1% up to 300.0 Mbps
Nextlink fixed wireless upload speeds
In Diagonal download speeds tend to be faster than than upload speeds for Nextlink fixed wireless. Compared to other ISPs, Nextlink is the fastest where upload speeds are concerned, and the fastest compared to other Diagonal fixed wireless providers. Nextlink offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Diagonal is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 75 Mbps. On average, Nextlink customers can get speeds up to 729 Mbps.
Show all upload speeds
- 70.2% up to 1,000.0 Mbps
- 17.7% up to 100.0 Mbps
- 12.1% up to 75.0 Mbps
BST Wifi Fixed Wireless in Diagonal, IA
BST Wifi fixed wireless coverage
About 92.26%, or 572 people, have BST Wifi fixed wireless internet available to them in the city. The company covers the entire Diagonal area. BST Wifi is a large internet service provider internet service providers in the US, with internet service available in most of Diagonal.
BST Wifi fixed wireless download speeds
BST Wifi is below average when comparing download speeds to all other internet providers in Diagonal. Versus other fixed wireless providers in the area, BST Wifi fixed wireless is below average. There are 3 different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from BST Wifi goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Diagonal customers is up to 92 Mbps.
Show all download speeds
- 84.8% up to 100.0 Mbps
- 14.3% up to 50.0 Mbps
- 0.9% up to 25.0 Mbps
BST Wifi fixed wireless upload speeds
In Diagonal download speeds tend to be faster than than upload speeds for BST Wifi fixed wireless. Compared to other ISPs, BST Wifi is below average where upload speeds are concerned, and below average compared to other Diagonal fixed wireless providers. BST Wifi offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Diagonal is up to 25 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, BST Wifi customers can get speeds up to 22 Mbps.
Show all upload speeds
- 33.9% up to 25.0 Mbps
- 65.2% up to 20.0 Mbps
- 0.9% up to 3.0 Mbps
US Cellular Fixed Wireless in Diagonal, IA
US Cellular fixed wireless coverage
About 73.55%, or 456 people, have US Cellular fixed wireless internet available to them in the city. The company covers the entire Diagonal area. US Cellular is one of the largest internet service providers internet service providers in the US, with internet service available in much of Diagonal.
US Cellular fixed wireless download speeds
US Cellular is the slowest when comparing download speeds to all other internet providers in Diagonal. Versus other fixed wireless providers in the area, US Cellular fixed wireless is the slowest. There are 2 different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from US Cellular goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Diagonal customers is up to 12 Mbps.
Show all download speeds
- 16.0% up to 25.0 Mbps
- 84.0% up to 10.0 Mbps
US Cellular fixed wireless upload speeds
In Diagonal download speeds tend to be faster than than upload speeds for US Cellular fixed wireless. Compared to other ISPs, US Cellular is the slowest where upload speeds are concerned, and the slowest compared to other Diagonal fixed wireless providers. US Cellular offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Diagonal is up to 3.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, US Cellular customers can get speeds up to 1.3 Mbps.
Show all upload speeds
- 16.0% up to 3.0 Mbps
- 84.0% up to 1.0 Mbps
Windstream Fixed Wireless in Diagonal, IA
Windstream fixed wireless coverage
About 6.77%, or 42 people, have Windstream fixed wireless internet available to them in the city. The company covers the northwest, southwest, west, southeast, northeast, and south Diagonal 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 Diagonal.
Windstream fixed wireless download speeds
Windstream is below average when comparing download speeds to all other internet providers in Diagonal. Versus other fixed wireless providers in the area, Windstream fixed wireless is below average. There are 4 different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from Windstream goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Diagonal customers is up to 68 Mbps.
Show all download speeds
- 28.6% up to 100.0 Mbps
- 28.6% up to 75.0 Mbps
- 31.0% up to 50.0 Mbps
- 11.9% up to 25.0 Mbps
Windstream fixed wireless upload speeds
In Diagonal download speeds tend to be faster than than upload speeds for Windstream fixed wireless. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and below average compared to other Diagonal fixed wireless providers. Windstream offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Diagonal is up to 10 Mbps. Some customers have slower plan choices, which only go up to 4.0 Mbps. On average, Windstream customers can get speeds up to 7.7 Mbps.
Show all upload speeds
- 57.1% up to 10.0 Mbps
- 31.0% up to 5.0 Mbps
- 11.9% up to 4.0 Mbps
T-Mobile Home Internet Fixed Wireless in Diagonal, IA
T-Mobile Home Internet fixed wireless coverage
About 3.06%, or 19 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the central Diagonal area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Diagonal.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Diagonal. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is below average. There are no different maximum speeds throughout Diagonal. The fastest plan anyone in Diagonal can order from T-Mobile Home Internet goes up to 25 Mbps, and all Diagonal customers can get this speed.
Show all download speeds
- 100.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Diagonal download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and below average compared to other Diagonal fixed wireless providers. T-Mobile Home Internet offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Diagonal is up to 3.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 3.0 Mbps
Diagonal Internet by Area
This information is most helpful to those looking for homes or considering moving to Diagonal or any of the areas nearby.
How does internet in Diagonal compare to the rest of Iowa?
Internet speeds in Diagonal are slower versus the average speeds in Iowa: 2,759 Mbps in Iowa versus 777 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Iowa is 98.80% versus 99.52% in Diagonal.
What zip codes have widespread internet?
Internet coverage varies by zip code and neighborhood. Some examples in or around Diagonal are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does internet service look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Benton, IA: more internet coverage, faster speeds
- Tingley, IA: less internet coverage, slower speeds
- Clearfield, IA: more internet coverage, slower speeds
- Mount Ayr, IA: less internet coverage, faster speeds
- Shannon City, IA: more internet coverage, slower speeds
- Maloy, IA: more internet coverage, faster speeds
- Kent, IA: more internet coverage, faster speeds
- Arispe, IA: more internet coverage, faster speeds
- Delphos, IA: less internet coverage, faster speeds
- Lenox, IA: more internet coverage, faster speeds
Cities with Similar Populations
- Santa, ID: less internet coverage, slower speeds
- Elk City, KS: more internet coverage, slower speeds
- Elkwood, VA: more internet coverage, slower speeds
- Ellis Grove, IL: less internet coverage, slower speeds
- Ellisboro, NC: more internet coverage, faster speeds
- Elm Grove, NC: more internet coverage, faster speeds
- Elyria, KS: more internet coverage, slower speeds
- Estral Beach, MI: more internet coverage, faster speeds
- Etna Center, ME: more internet coverage, faster speeds
- Reddock Springs, AL: more internet coverage, slower speeds