In Mason City there is 1 residential Fiber provider covering 89.78% of the city. The average home can get speeds up to 994 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 Fiber internet providers in Mason City, IL.
To see availability maps for all providers including fiber, cable, DSL, and more in Mason City, IL please click below.
Mason City, IL Availability Maps
Fiber 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 fiber internet available?
Fiber Internet Availability Key
Fiber is available in 89.78% of Mason City. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is CASSCOMM. Call one of the companies with service in Mason City above to see who has service at your home.
How fast is fiber internet in Mason City?
The map below shows maximum fiber internet speeds by area in Mason City.
Fiber Internet Speed Key
The average Mason City home can get up to 994 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which 89.21% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, less than 1% of homes can only purchase plans up to 100 Mbps. See the internet provider details below for info about their speed and coverage in Mason City.
Fiber internet speeds tend to be faster in the east parts of Mason City, and slower in the northwest areas of the city.
Is fiber 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, fixed wireless competes most often with fiber in the city.
- Fiber is the fastest internet type for 89.78% of Mason City homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 9.93%.
- Satellite internet may be the only option for less than 1% of Mason City homes.
Fiber 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.
CASSCOMM Fiber in Mason City, IL
CASSCOMM fiber coverage
About 89.78%, or 2,205 people, have CASSCOMM fiber internet available to them in the city. The company covers the entire Mason City area. CASSCOMM is a large internet service provider internet service providers in the US, with internet service available in most of Mason City.
CASSCOMM fiber download speeds
CASSCOMM is the fastest when comparing download speeds to all other internet providers in Mason City. Versus other fiber providers in the area, CASSCOMM fiber is the fastest. There are 2 different maximum speeds throughout Mason City. The fastest plan anyone in Mason City can order from CASSCOMM goes up to 1,000 Mbps, the slowest package only goes up to 100 Mbps, and the city-wide average maximum speed for Mason City customers is up to 994 Mbps.
Show all download speeds
- 99.4% up to 1,000.0 Mbps
- 0.6% up to 100.0 Mbps
CASSCOMM fiber upload speeds
In Mason City download speeds tend to be faster than than upload speeds for CASSCOMM fiber. Compared to other ISPs, CASSCOMM is the fastest where upload speeds are concerned, and the fastest compared to other Mason City fiber providers. CASSCOMM 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 Mason City is up to 1,000 Mbps. Some customers have slower plan choices, which only go up to 25 Mbps. On average, CASSCOMM customers can get speeds up to 994 Mbps.
Show all upload speeds
- 99.4% up to 1,000.0 Mbps
- 0.6% up to 25.0 Mbps
Mason City Fiber 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 fiber internet in Mason City compare to the rest of Illinois?
Fiber internet speeds in Mason City are much faster versus the average speeds in Illinois: 0.00 Mbps in Illinois versus 994 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Illinois is 0.00% versus 89.78% in Mason City.
What zip codes have fiber internet?
Fiber 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 fiber 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
- Teheran, IL: less fiber coverage, slower speeds
- Natrona, IL: less fiber coverage, faster speeds
- San Jose, IL: less fiber coverage, faster speeds
- Greenview, IL: less fiber coverage, faster speeds
- Easton, IL: more fiber coverage, slower speeds
- Emden, IL: less fiber coverage, faster speeds
- Forest City, IL: less fiber coverage, slower speeds
- Poplar City, IL: less fiber coverage, slower speeds
- Delavan, IL: less fiber coverage, faster speeds
- Oakford, IL: less fiber coverage, slower speeds
Cities with Similar Populations
- Tracy, MN: less fiber coverage, faster speeds
- Hager City, WI: more fiber coverage, faster speeds
- Hayfield, MN: less fiber coverage, faster speeds
- Lauderdale, MS: less fiber coverage, faster speeds
- Reedsville, WV: more fiber coverage, faster speeds
- Russell, PA: less fiber coverage, slower speeds
- Siletz, OR: less fiber coverage, faster speeds
- Taft, OK: less fiber coverage, faster speeds
- Talihina, OK: less fiber coverage, faster speeds
- Morristown, AZ: less fiber coverage, slower speeds