In St. Mary Parish there are 2 residential DSL providers covering 88.26% of the county. The average home can get speeds up to 36 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 St. Mary Parish, LA.
To see availability maps for all providers including fiber, cable, DSL, and more in St. Mary Parish, LA please click below.
St. Mary Parish, LA Availability Maps
DSL Internet Service Providers in St. Mary Parish
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 St. Mary Parish are not shown.
St. Mary Parish 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 St. Mary Parish is DSL internet available?
DSL Internet Availability Key
DSL is available in 88.26% of St. Mary Parish. 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 St. Mary Parish above to see who has service at your home.
How fast is DSL internet in St. Mary Parish?
The map below shows maximum DSL internet speeds by area in St. Mary Parish.
DSL Internet Speed Key
The average St. Mary Parish home can get up to 36 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 100 Mbps, which 16.35% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 53.45% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in St. Mary Parish.
DSL internet speeds tend to be faster in the east parts of St. Mary Parish, and slower in the west areas of the county.
Is DSL the fastest internet I can get in St. Mary Parish?
The fastest internet for you may vary based on where in St. Mary Parish you live. In general, cable competes most often with DSL in the county.
- Fiber is the fastest internet type for 22.01% of St. Mary Parish homes.
- Cable is fastest for 70.56% of the county.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 6.79%.
- Satellite internet may be the only option for less than 1% of St. Mary Parish homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in St. Mary Parish, along with details on where in St. Mary Parish and at what speeds.
AT&T DSL in St. Mary Parish, LA
AT&T DSL coverage
About 88.26%, or 43,606 people, have AT&T DSL internet available to them in the county. The company covers the east, northwest, south, southeast, central, north, and west St. Mary Parish area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of St. Mary Parish.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in St. Mary Parish. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 5 different maximum speeds throughout St. Mary Parish. The fastest plan anyone in St. Mary Parish 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 St. Mary Parish customers is up to 36 Mbps.
Show all download speeds
- 18.5% up to 100.0 Mbps
- 6.1% up to 75.0 Mbps
- 11.3% up to 50.0 Mbps
- 3.6% up to 25.0 Mbps
- 60.6% up to 10.0 Mbps
AT&T DSL upload speeds
In St. Mary Parish 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 one of the fastest compared to other St. Mary Parish 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 St. Mary Parish 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 6.8 Mbps.
Show all upload speeds
- 24.6% up to 20.0 Mbps
- 11.3% up to 10.0 Mbps
- 3.6% up to 5.0 Mbps
- 60.6% up to 1.0 Mbps
EarthLink DSL in St. Mary Parish, LA
EarthLink DSL coverage
About 88.26%, or 43,606 people, have EarthLink DSL internet available to them in the county. The company covers the east, northwest, south, southeast, central, north, and west St. Mary Parish area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of St. Mary Parish.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in St. Mary Parish. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 5 different maximum speeds throughout St. Mary Parish. The fastest plan anyone in St. Mary Parish 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 St. Mary Parish customers is up to 36 Mbps.
Show all download speeds
- 18.5% up to 100.0 Mbps
- 6.1% up to 75.0 Mbps
- 11.3% up to 50.0 Mbps
- 3.6% up to 25.0 Mbps
- 60.6% up to 10.0 Mbps
EarthLink DSL upload speeds
In St. Mary Parish 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 one of the fastest compared to other St. Mary Parish 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 St. Mary Parish 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 6.8 Mbps.
Show all upload speeds
- 24.6% up to 20.0 Mbps
- 11.3% up to 10.0 Mbps
- 3.6% up to 5.0 Mbps
- 60.6% up to 1.0 Mbps
St. Mary Parish DSL by Area
This information is most helpful to those looking for homes or considering moving to St. Mary Parish or any of the areas nearby.
How does DSL internet in St. Mary Parish compare to the rest of Louisiana?
DSL internet speeds in St. Mary Parish are much faster versus the average speeds in Louisiana: 0.00 Mbps in Louisiana versus 36 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Louisiana is 0.00% versus 88.26% in St. Mary Parish.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around St. Mary Parish 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
- Assumption Parish, LA: less DSL coverage, slower speeds
- Iberia Parish, LA: less DSL coverage, slower speeds
- Iberville Parish, LA: less DSL coverage, faster speeds
- Terrebonne Parish, LA: less DSL coverage, faster speeds
- St. James Parish, LA: less DSL coverage, faster speeds
- Lafourche Parish, LA: less DSL coverage, faster speeds
- Ascension Parish, LA: less DSL coverage, faster speeds
- St. Martin Parish, LA: less DSL coverage, slower speeds
- Vermilion Parish, LA: less DSL coverage, slower speeds
- Lafayette Parish, LA: less DSL coverage, faster speeds
Counties with Similar Populations
- Cortland County, NY: less DSL coverage, faster speeds
- Upshur County, TX: less DSL coverage, slower speeds
- Val Verde County, TX: less DSL coverage, slower speeds
- Vance County, NC: less DSL coverage, faster speeds
- Vega Baja Municipio, PR: less DSL coverage, slower speeds
- Venango County, PA: less DSL coverage, faster speeds
- Waldo County, ME: less DSL coverage, slower speeds
- Warren County, TN: less DSL coverage, slower speeds
- Delaware County, OK: less DSL coverage, slower speeds
- Darke County, OH: less DSL coverage, faster speeds