In Harris County there are 3 residential DSL providers covering 74.77% of the county. The average home can get speeds up to 71 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 Harris County, TX.
To see availability maps for all providers including fiber, cable, DSL, and more in Harris County, TX please click below.
Harris County, TX Availability Maps
DSL Internet Service Providers in Harris County
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 Harris County are not shown.
Harris County 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 Harris County is DSL internet available?
DSL Internet Availability Key
DSL is available in 74.77% of Harris County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Harris County above to see who has service at your home.
How fast is DSL internet in Harris County?
The map below shows maximum DSL internet speeds by area in Harris County.
DSL Internet Speed Key
The average Harris County home can get up to 71 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 500 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, 10.35% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Harris County.
DSL internet speeds tend to be faster in the west parts of Harris County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Harris County?
The fastest internet for you may vary based on where in Harris County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 82.79% of Harris County homes.
- Cable is fastest for 16.37% of the county.
- 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 Harris County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Harris County, along with details on where in Harris County and at what speeds.
AT&T DSL in Harris County, TX
AT&T DSL coverage
About 70.92%, or 3,355,286 people, have AT&T DSL internet available to them in the county. The company covers the entire Harris County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Harris County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Harris County. Versus other DSL providers in the area, AT&T DSL is below average. There are 5 different maximum speeds throughout Harris County. The fastest plan anyone in Harris County can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Harris County customers is up to 72 Mbps.
Show all download speeds
- 53.0% up to 100.0 Mbps
- 10.1% up to 75.0 Mbps
- 17.4% up to 50.0 Mbps
- 7.6% up to 25.0 Mbps
- 12.0% up to 10.0 Mbps
AT&T DSL upload speeds
In Harris County download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other Harris County DSL providers. AT&T offers 4 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Harris County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 15 Mbps.
Show all upload speeds
- 63.1% up to 20.0 Mbps
- 17.4% up to 10.0 Mbps
- 7.6% up to 5.0 Mbps
- 12.0% up to 1.0 Mbps
EarthLink DSL in Harris County, TX
EarthLink DSL coverage
About 70.92%, or 3,355,286 people, have EarthLink DSL internet available to them in the county. The company covers the entire Harris County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Harris County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Harris County. Versus other DSL providers in the area, EarthLink DSL is below average. There are 5 different maximum speeds throughout Harris County. The fastest plan anyone in Harris County can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Harris County customers is up to 72 Mbps.
Show all download speeds
- 53.0% up to 100.0 Mbps
- 10.1% up to 75.0 Mbps
- 17.4% up to 50.0 Mbps
- 7.6% up to 25.0 Mbps
- 12.0% up to 10.0 Mbps
EarthLink DSL upload speeds
In Harris County download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other Harris County DSL providers. EarthLink offers 4 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Harris County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 15 Mbps.
Show all upload speeds
- 63.1% up to 20.0 Mbps
- 17.4% up to 10.0 Mbps
- 7.6% up to 5.0 Mbps
- 12.0% up to 1.0 Mbps
Brightspeed DSL in Harris County, TX
Brightspeed DSL coverage
About 3.45%, or 163,091 people, have Brightspeed DSL internet available to them in the county. The company covers the northeast, north, southeast, east, and central Harris County area. Brightspeed is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Harris County.
Brightspeed DSL download speeds
Brightspeed is below average when comparing download speeds to all other internet providers in Harris County. Versus other DSL providers in the area, Brightspeed DSL is below average. There are 6 different maximum speeds throughout Harris County. The fastest plan anyone in Harris County can order from Brightspeed goes up to 140 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Harris County customers is up to 48 Mbps.
Show all download speeds
- 6.0% up to 140.0 Mbps
- 18.9% up to 100.0 Mbps
- 11.2% up to 80.0 Mbps
- 3.7% up to 60.0 Mbps
- 10.2% up to 40.0 Mbps
- 50.0% up to 10.0 Mbps
Brightspeed DSL upload speeds
In Harris County download speeds tend to be faster than than upload speeds for Brightspeed DSL. Compared to other ISPs, Brightspeed is below average where upload speeds are concerned, and below average compared to other Harris County DSL providers. Brightspeed offers 5 different upload speeds across the county, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Harris County is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Brightspeed customers can get speeds up to 5.2 Mbps.
Show all upload speeds
- 6.0% up to 20.0 Mbps
- 30.1% up to 10.0 Mbps
- 3.7% up to 5.0 Mbps
- 10.2% up to 3.0 Mbps
- 50.0% up to 1.0 Mbps
Harris County DSL by Area
This information is most helpful to those looking for homes or considering moving to Harris County or any of the areas nearby.
How does DSL internet in Harris County compare to the rest of Texas?
DSL internet speeds in Harris County are much faster versus the average speeds in Texas: 0.00 Mbps in Texas versus 71 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Texas is 0.00% versus 74.77% in Harris County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Harris County 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 counties?
Below are counties nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Counties
- Fort Bend County, TX: less DSL coverage, faster speeds
- Montgomery County, TX: less DSL coverage, faster speeds
- Brazoria County, TX: less DSL coverage, slower speeds
- Waller County, TX: less DSL coverage, slower speeds
- Galveston County, TX: less DSL coverage, slower speeds
- Liberty County, TX: less DSL coverage, slower speeds
- Chambers County, TX: less DSL coverage, faster speeds
- Austin County, TX: less DSL coverage, slower speeds
- Washington County, TX: less DSL coverage, slower speeds
- Colorado County, TX: less DSL coverage, slower speeds
Counties with Similar Populations
- Maricopa County, AZ: more DSL coverage, faster speeds
- Orange County, CA: less DSL coverage, faster speeds
- Los Angeles County, CA: less DSL coverage, slower speeds
- San Diego County, CA: more DSL coverage, faster speeds
- Miami-Dade County, FL: more DSL coverage, slower speeds
- Cook County, IL: more DSL coverage, faster speeds
- Duval County, FL: more DSL coverage, faster speeds
- Bergen County, NJ: less DSL coverage, faster speeds
- Montgomery County, PA: less DSL coverage, faster speeds
- Delaware County, PA: less DSL coverage, slower speeds