In Potomac there are 2 residential Fiber providers covering 99.64% of the city. The average home can get speeds up to 1,099 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 Potomac, MD.
To see availability maps for all providers including fiber, cable, DSL, and more in Potomac, MD please click below.
Fiber Internet Service Providers in Potomac
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 Potomac are not shown.
Potomac 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 Potomac is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 99.64% of Potomac. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Earthlink. Call one of the companies with service in Potomac above to see who has service at your home.
How fast is fiber internet in Potomac?
The map below shows maximum fiber internet speeds by area in Potomac.
Fiber Internet Speed Key
The average Potomac home can get up to 1,099 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 2,048 Mbps, which 14.04% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 85.17% of homes can only purchase plans up to 940 Mbps. See the internet provider details below for info about their speed and coverage in Potomac.
Fiber internet speeds tend to be faster in the northeast parts of Potomac, and slower in the east areas of the city.
Is fiber the fastest internet I can get in Potomac?
The fastest internet for you may vary based on where in Potomac you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 14.46% of Potomac homes.
- Cable is fastest for 85.51% 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 Potomac homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Potomac, along with details on where in Potomac and at what speeds.
EarthLink Fiber in Potomac, MD
EarthLink fiber coverage
About 99.64%, or 53,208 people, have EarthLink fiber internet available to them in the city. The company covers the entire Potomac area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Potomac.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Potomac. Versus other fiber providers in the area, EarthLink fiber is one of the slowest. There are 2 different maximum speeds throughout Potomac. The fastest plan anyone in Potomac can order from EarthLink goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for Potomac customers is up to 1,096 Mbps.
Show all download speeds
- 14.1% up to 2,048.0 Mbps
- 85.9% up to 940.0 Mbps
EarthLink fiber upload speeds
In Potomac download speeds tend to be faster than than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and one of the slowest compared to other Potomac fiber providers. EarthLink 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 Potomac is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, EarthLink customers can get speeds up to 1,045 Mbps.
Show all upload speeds
- 14.1% up to 2,048.0 Mbps
- 85.9% up to 880.0 Mbps
Verizon Fiber in Potomac, MD
Verizon fiber coverage
About 99.64%, or 53,208 people, have Verizon fiber internet available to them in the city. The company covers the entire Potomac area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of Potomac.
Verizon fiber download speeds
Verizon is above average when comparing download speeds to all other internet providers in Potomac. Versus other fiber providers in the area, Verizon fiber is one of the slowest. There are 2 different maximum speeds throughout Potomac. The fastest plan anyone in Potomac can order from Verizon goes up to 2,048 Mbps, the slowest package only goes up to 940 Mbps, and the city-wide average maximum speed for Potomac customers is up to 1,096 Mbps.
Show all download speeds
- 14.1% up to 2,048.0 Mbps
- 85.9% up to 940.0 Mbps
Verizon fiber upload speeds
In Potomac download speeds tend to be faster than than upload speeds for Verizon fiber. Compared to other ISPs, Verizon is above average where upload speeds are concerned, and one of the slowest compared to other Potomac fiber providers. Verizon 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 Potomac is up to 2,048 Mbps. Some customers have slower plan choices, which only go up to 880 Mbps. On average, Verizon customers can get speeds up to 1,045 Mbps.
Show all upload speeds
- 14.1% up to 2,048.0 Mbps
- 85.9% up to 880.0 Mbps
Potomac Fiber by Area
This information is most helpful to those looking for homes or considering moving to Potomac or any of the areas nearby.
How does fiber internet in Potomac compare to the rest of Maryland?
Fiber internet speeds in Potomac are much faster versus the average speeds in Maryland: 0.00 Mbps in Maryland versus 1,099 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Maryland is 0.00% versus 99.64% in Potomac.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Potomac 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
- North Bethesda, MD: less fiber coverage, slower speeds
- Travilah, MD: more fiber coverage, faster speeds
- Rockville, MD: less fiber coverage, faster speeds
- Cabin John, MD: more fiber coverage, faster speeds
- Garrett Park, MD: more fiber coverage, slower speeds
- Glen Echo, MD: less fiber coverage, faster speeds
- Bethesda, MD: less fiber coverage, faster speeds
- Kensington, MD: more fiber coverage, faster speeds
- Chevy Chase View, MD: more fiber coverage, faster speeds
- South Kensington, MD: more fiber coverage, faster speeds
Cities with Similar Populations
- Asheboro, NC: less fiber coverage, faster speeds
- Winter Park, FL: less fiber coverage, faster speeds
- Winter Garden, FL: less fiber coverage, faster speeds
- West Sacramento, CA: less fiber coverage, faster speeds
- West Chester, OH: less fiber coverage, faster speeds
- Webster, NY: less fiber coverage, faster speeds
- Vero Beach, FL: less fiber coverage, faster speeds
- Union, NJ: less fiber coverage, faster speeds
- Tooele, UT: less fiber coverage, faster speeds
- Sterling, VA: less fiber coverage, faster speeds