In Mason City there is 1 residential DSL provider covering 91.90% of the city. The average home can get speeds up to 12 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 Mason City, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Mason City, IA please click below.
Mason City, IA Availability Maps
DSL Internet Service Provider in Mason City
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 Mason City are not shown.
Mason City 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 Mason City is DSL internet available?
DSL Internet Availability Key
DSL is available in 91.90% of Mason City. 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 Mason City above to see who has service at your home.
How fast is DSL internet in Mason City?
The map below shows maximum DSL internet speeds by area in Mason City.
DSL Internet Speed Key
The average Mason City home can get up to 12 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 100 Mbps, which 2.52% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 89.38% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Mason City.
DSL internet speeds tend to be faster in the west parts of Mason City, and slower in the northeast areas of the city.
Is DSL the fastest internet I can get in Mason City?
The fastest internet for you may vary based on where in Mason City you live. In general, fiber competes most often with DSL in the city.
- Fiber is the fastest internet type for 95.90% of Mason City homes.
- Cable is fastest for 2.13% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 1.95%.
- Satellite internet may be the only option for less than 1% of Mason City homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Mason City, along with details on where in Mason City and at what speeds.
Centurylink DSL in Mason City, IA
Centurylink DSL coverage
About 91.90%, or 25,302 people, have Centurylink DSL internet available to them in the city. The company covers the entire Mason City area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Mason City.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Mason City. Versus other DSL providers in the area, Centurylink DSL is the fastest. There are 2 different maximum speeds throughout Mason City. The fastest plan anyone in Mason City can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Mason City customers is up to 12 Mbps.
Show all download speeds
- 2.7% up to 100.0 Mbps
- 97.3% up to 10.0 Mbps
Centurylink DSL upload speeds
In Mason City 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 the fastest compared to other Mason City DSL providers. Centurylink 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 Mason City is up to 50 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 2.7% up to 50.0 Mbps
- 0.0% up to 10.0 Mbps
- 97.3% up to 1.0 Mbps
Mason City DSL by Area
This information is most helpful to those looking for homes or considering moving to Mason City or any of the areas nearby.
How does DSL internet in Mason City compare to the rest of Iowa?
DSL internet speeds in Mason City are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 12 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Iowa is 0.00% versus 91.90% in Mason City.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Mason City 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 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
- Portland, IA: less DSL coverage, slower speeds
- Freeman, IA: less DSL coverage, slower speeds
- Emery, IA: less DSL coverage, slower speeds
- Rock Falls, IA: less DSL coverage, slower speeds
- Clear Lake, IA: less DSL coverage, slower speeds
- Manly, IA: more DSL coverage, faster speeds
- Nora Springs, IA: less DSL coverage, faster speeds
- Swaledale, IA: less DSL coverage, slower speeds
- Hanlontown, IA: less DSL coverage, faster speeds
- Ventura, IA: less DSL coverage, slower speeds
Cities with Similar Populations
- Faribault, MN: more DSL coverage, faster speeds
- Green, OH: less DSL coverage, faster speeds
- Glasgow, KY: less DSL coverage, faster speeds
- Fremont, OH: less DSL coverage, faster speeds
- Freeport, IL: less DSL coverage, faster speeds
- Fortuna Foothills, AZ: less DSL coverage, faster speeds
- Fort Hood, TX: less DSL coverage, faster speeds
- Fort Dodge, IA: less DSL coverage, faster speeds
- Flowing Wells, AZ: more DSL coverage, faster speeds
- Tarpon Springs, FL: less DSL coverage, slower speeds