In Harborside there are 2 residential Fiber providers covering 100.00% of the city. The average home can get speeds up to 1,827 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 Harborside, ME.
To see availability maps for all providers including fiber, cable, DSL, and more in Harborside, ME please click below.
Harborside, ME Availability Maps
Fiber Internet Service Providers in Harborside
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 Harborside are not shown.
Harborside 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 Harborside is fiber internet available?

Fiber Internet Availability Key
Fiber is available in 100.00% of Harborside. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Fidium. Call one of the companies with service in Harborside above to see who has service at your home.
How fast is fiber internet in Harborside?
The map below shows maximum fiber internet speeds by area in Harborside.

Fiber Internet Speed Key
The average Harborside home can get up to 1,827 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 2,000 Mbps, which 82.69% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 17.31% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Harborside.
Fiber internet speeds tend to be faster in the southeast parts of Harborside, and slower in the northwest areas of the city.
Is fiber the fastest internet I can get in Harborside?
The fastest internet for you may vary based on where in Harborside you live. In general, satellite competes most often with fiber in the city.
- Fiber is the fastest internet type for 100.00% of Harborside homes.
- Cable is fastest for less than 1% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Harborside homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Harborside, along with details on where in Harborside and at what speeds.
Fidium Fiber Fiber in Harborside, ME

Fidium fiber coverage
About 82.69%, or 258 people, have Fidium fiber internet available to them in the city. The company covers the southeast, south, northeast, east, and central Harborside area. Fidium is one of the largest internet service providers internet service providers in the US, with internet service available in much of Harborside.
Fidium Fiber fiber download speeds
Fidium is the fastest when comparing download speeds to all other internet providers in Harborside. Versus other fiber providers in the area, Fidium fiber is the fastest. There are no different maximum speeds throughout Harborside. The fastest plan anyone in Harborside can order from Fidium goes up to 2,000 Mbps, and all Harborside customers can get this speed.
Show all download speeds
- 100.0% up to 2,000.0 Mbps
Fidium Fiber fiber upload speeds
In Harborside download speeds tend to be equal to than upload speeds for Fidium fiber. Compared to other ISPs, Fidium is the fastest where upload speeds are concerned, and the fastest compared to other Harborside fiber providers. Fidium offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Harborside is up to 2,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 2,000.0 Mbps
Islesboro Municipal Broadband (IMB) Fiber in Harborside, ME

Islesboro Municipal Broadband fiber coverage
About 17.31%, or 54 people, have Islesboro Municipal Broadband fiber internet available to them in the city. The company covers the northwest Harborside area. Islesboro Municipal Broadband is one of the smallest internet service providers internet service providers in the US, with internet service available in a small portion of Harborside.
Islesboro Municipal Broadband (IMB) fiber download speeds
Islesboro Municipal Broadband is above average when comparing download speeds to all other internet providers in Harborside. Versus other fiber providers in the area, Islesboro Municipal Broadband fiber is the slowest. There are no different maximum speeds throughout Harborside. The fastest plan anyone in Harborside can order from Islesboro Municipal Broadband goes up to 1,000 Mbps, and all Harborside customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Islesboro Municipal Broadband (IMB) fiber upload speeds
In Harborside download speeds tend to be equal to than upload speeds for Islesboro Municipal Broadband fiber. Compared to other ISPs, Islesboro Municipal Broadband is above average where upload speeds are concerned, and the slowest compared to other Harborside fiber providers. Islesboro Municipal Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Harborside is up to 1,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,000.0 Mbps
Harborside Fiber by Area
This information is most helpful to those looking for homes or considering moving to Harborside or any of the areas nearby.
How does fiber internet in Harborside compare to the rest of Maine?
Fiber internet speeds in Harborside are much faster versus the average speeds in Maine: 0.00 Mbps in Maine versus 1,827 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Maine is 0.00% versus 100.00% in Harborside.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Harborside 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
- Castine, ME: less fiber coverage, faster speeds
- West Brooksville, ME: less fiber coverage, faster speeds
- Brooksville, ME: equal fiber coverage, faster speeds
- Norumbega, ME: equal fiber coverage, faster speeds
- Islesboro, ME: less fiber coverage, slower speeds
- Little Deer Isle, ME: less fiber coverage, faster speeds
- West Penobscot, ME: less fiber coverage, faster speeds
- Sargentville, ME: less fiber coverage, faster speeds
- Sedgwick, ME: equal fiber coverage, faster speeds
- South Penobscot, ME: less fiber coverage, faster speeds
Cities with Similar Populations
- Alger, WA: less fiber coverage, faster speeds
- Alma, WV: less fiber coverage, faster speeds
- Alquina, IN: less fiber coverage, slower speeds
- Alton Station, KY: less fiber coverage, faster speeds
- Altona, IN: equal fiber coverage, faster speeds
- Zebina, GA: less fiber coverage, faster speeds
- Anchor, IL: less fiber coverage, faster speeds
- Anderson, KY: equal fiber coverage, faster speeds
- Anniston, MO: less fiber coverage, slower speeds
- Art, IN: less fiber coverage, slower speeds


