In Portsmouth there is 1 residential Fiber provider covering 59.69% of the city. The average home can get speeds up to 407 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 Portsmouth, IA.
To see availability maps for all providers including fiber, cable, DSL, and more in Portsmouth, IA please click below.
Portsmouth, IA Availability Maps
Fiber Internet Service Provider in Portsmouth
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 Portsmouth are not shown.
Portsmouth 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 Portsmouth is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 59.69% of Portsmouth. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is FMCTC. Call one of the companies with service in Portsmouth above to see who has service at your home.
How fast is fiber internet in Portsmouth?
The map below shows maximum fiber internet speeds by area in Portsmouth.
Fiber Internet Speed Key
The average Portsmouth home can get up to 407 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which less than 1% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 59.04% of homes can only purchase plans up to 400 Mbps. See the internet provider details below for info about their speed and coverage in Portsmouth.
Fiber internet speeds tend to be faster in the southeast parts of Portsmouth, and slower in the central areas of the city.
Is fiber the fastest internet I can get in Portsmouth?
The fastest internet for you may vary based on where in Portsmouth you live. In general, fixed wireless competes most often with fiber in the city.
- Fiber is the fastest internet type for 24.84% of Portsmouth homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for 3.49%.
- Fixed wireless is fastest for 71.68%.
- Satellite internet may be the only option for less than 1% of Portsmouth homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Portsmouth, along with details on where in Portsmouth and at what speeds.
FMCTC Fiber in Portsmouth, IA
FMCTC fiber coverage
About 59.69%, or 274 people, have FMCTC fiber internet available to them in the city. The company covers the central, north, east, northeast, southeast, and northwest Portsmouth area. FMCTC is a small internet service provider internet service providers in the US, with internet service available in a majority of Portsmouth.
FMCTC fiber download speeds
FMCTC is above average when comparing download speeds to all other internet providers in Portsmouth. Versus other fiber providers in the area, FMCTC fiber is the slowest. There are no different maximum speeds throughout Portsmouth. The fastest plan anyone in Portsmouth can order from FMCTC goes up to 400 Mbps, and all Portsmouth customers can get this speed.
Show all download speeds
- 100.0% up to 400.0 Mbps
FMCTC fiber upload speeds
In Portsmouth download speeds tend to be faster than than upload speeds for FMCTC fiber. Compared to other ISPs, FMCTC is below average where upload speeds are concerned, and the slowest compared to other Portsmouth fiber providers. FMCTC offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Portsmouth is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Portsmouth Fiber by Area
This information is most helpful to those looking for homes or considering moving to Portsmouth or any of the areas nearby.
How does fiber internet in Portsmouth compare to the rest of Iowa?
Fiber internet speeds in Portsmouth are much faster versus the average speeds in Iowa: 0.00 Mbps in Iowa versus 407 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Iowa is 0.00% versus 59.69% in Portsmouth.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Portsmouth 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
- Panama, IA: more fiber coverage, slower speeds
- Persia, IA: less fiber coverage, faster speeds
- Tennant, IA: more fiber coverage, slower speeds
- Westphalia, IA: more fiber coverage, slower speeds
- Shelby, IA: more fiber coverage, faster speeds
- Woodbine, IA: more fiber coverage, faster speeds
- Earling, IA: more fiber coverage, slower speeds
- Harlan, IA: more fiber coverage, faster speeds
- Logan, IA: less fiber coverage, faster speeds
- Minden, IA: more fiber coverage, faster speeds
Cities with Similar Populations
- Brookvale, CO: less fiber coverage, slower speeds
- Wheelerville, MO: less fiber coverage, faster speeds
- Whalan, MN: more fiber coverage, faster speeds
- Westwood, IN: more fiber coverage, faster speeds
- West Bend, NC: more fiber coverage, faster speeds
- Buckeye, LA: less fiber coverage, faster speeds
- Bryant, WI: less fiber coverage, faster speeds
- Whitaker, IN: more fiber coverage, faster speeds
- Breedsville, MI: more fiber coverage, faster speeds
- Boxley, IN: less fiber coverage, faster speeds