In Theodore there is 1 residential DSL provider covering 58.27% of the city. The average home can get speeds up to 10 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 Theodore, MD.
To see availability maps for all providers including fiber, cable, DSL, and more in Theodore, MD please click below.
Theodore, MD Availability Maps
DSL Internet Service Provider in Theodore
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 Theodore are not shown.
Theodore 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 Theodore is DSL internet available?
DSL Internet Availability Key
DSL is available in 58.27% of Theodore. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Armstrong. Call one of the companies with service in Theodore above to see who has service at your home.
How fast is DSL internet in Theodore?
The map below shows maximum DSL internet speeds by area in Theodore.
DSL Internet Speed Key
The average Theodore home can get up to 10 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 10 Mbps, which 58.27% of residents can get.
Is DSL the fastest internet I can get in Theodore?
The fastest internet for you may vary based on where in Theodore you live. In general, cable competes most often with DSL in the city.
- Fiber is the fastest internet type for 29.32% of Theodore homes.
- Cable is fastest for 70.32% 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 Theodore homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Theodore, along with details on where in Theodore and at what speeds.
Armstrong DSL in Theodore, MD
Armstrong DSL coverage
About 58.27%, or 324 people, have Armstrong DSL internet available to them in the city. The company covers the entire Theodore area. Armstrong is a large internet service provider internet service providers in the US, with internet service available in a majority of Theodore.
Armstrong DSL download speeds
Armstrong is the slowest when comparing download speeds to all other internet providers in Theodore. Versus other DSL providers in the area, Armstrong DSL is the fastest. There are no different maximum speeds throughout Theodore. The fastest plan anyone in Theodore can order from Armstrong goes up to 10 Mbps, and all Theodore customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Armstrong DSL upload speeds
In Theodore download speeds tend to be faster than than upload speeds for Armstrong DSL. Compared to other ISPs, Armstrong is the slowest where upload speeds are concerned, and the fastest compared to other Theodore DSL providers. Armstrong offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Theodore is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1.0 Mbps
Theodore DSL by Area
This information is most helpful to those looking for homes or considering moving to Theodore or any of the areas nearby.
How does DSL internet in Theodore compare to the rest of Maryland?
DSL internet speeds in Theodore are much faster versus the average speeds in Maryland: 0.00 Mbps in Maryland versus 10 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in Maryland is 0.00% versus 58.27% in Theodore.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Theodore 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
- Port Deposit, MD: less DSL coverage, similar speeds
- North East, MD: less DSL coverage, similar speeds
- Rising Sun, MD: more DSL coverage, similar speeds
- Colora, MD: more DSL coverage, similar speeds
- Blueball, MD: more DSL coverage, similar speeds
- Conowingo, MD: less DSL coverage, similar speeds
- Nottingham, PA: less DSL coverage, faster speeds
- Rock Springs, MD: more DSL coverage, similar speeds
- Oxford, PA: less DSL coverage, faster speeds
- Tayloria, PA: more DSL coverage, similar speeds
Cities with Similar Populations
- Dunlow, WV: more DSL coverage, faster speeds
- Cynthiana, OH: more DSL coverage, faster speeds
- Day, FL: more DSL coverage, faster speeds
- Dellwood, GA: less DSL coverage, similar speeds
- Deltana, AK: more DSL coverage, faster speeds
- Dermont, KY: more DSL coverage, similar speeds
- Diamond Ridge, AK: more DSL coverage, faster speeds
- Dillard, OR: more DSL coverage, faster speeds
- Curdsville, VA: more DSL coverage, faster speeds
- Wilson, LA: less DSL coverage, similar speeds