In Columbia County there are 3 residential DSL providers covering 74.89% of the county. The average home can get speeds up to 92 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 Columbia County, FL.
To see availability maps for all providers including fiber, cable, DSL, and more in Columbia County, FL please click below.
Columbia County, FL Availability Maps
DSL Internet Service Providers in Columbia 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 Columbia County are not shown.
Columbia 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 Columbia County is DSL internet available?
DSL Internet Availability Key
DSL is available in 74.89% of Columbia 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 Columbia County above to see who has service at your home.
How fast is DSL internet in Columbia County?
The map below shows maximum DSL internet speeds by area in Columbia County.
DSL Internet Speed Key
The average Columbia County home can get up to 92 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 300 Mbps, which 3.13% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 8.07% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Columbia County.
DSL internet speeds tend to be faster in the south parts of Columbia County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Columbia County?
The fastest internet for you may vary based on where in Columbia County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 99.76% of Columbia County homes.
- Cable is fastest for less than 1% 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 Columbia County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Columbia County, along with details on where in Columbia County and at what speeds.
AT&T DSL in Columbia County, FL
AT&T DSL coverage
About 58.20%, or 40,565 people, have AT&T DSL internet available to them in the county. The company covers the entire Columbia County area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Columbia County.
AT&T DSL download speeds
AT&T is below average when comparing download speeds to all other internet providers in Columbia County. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 5 different maximum speeds throughout Columbia County. The fastest plan anyone in Columbia 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 Columbia County customers is up to 70 Mbps.
Show all download speeds
- 48.4% up to 100.0 Mbps
- 10.8% up to 75.0 Mbps
- 20.4% up to 50.0 Mbps
- 7.8% up to 25.0 Mbps
- 12.6% up to 10.0 Mbps
AT&T DSL upload speeds
In Columbia 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 one of the slowest compared to other Columbia 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 Columbia 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 14 Mbps.
Show all upload speeds
- 59.2% up to 20.0 Mbps
- 20.4% up to 10.0 Mbps
- 7.8% up to 5.0 Mbps
- 12.6% up to 1.0 Mbps
EarthLink DSL in Columbia County, FL
EarthLink DSL coverage
About 58.20%, or 40,565 people, have EarthLink DSL internet available to them in the county. The company covers the entire Columbia County area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Columbia County.
EarthLink DSL download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Columbia County. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 5 different maximum speeds throughout Columbia County. The fastest plan anyone in Columbia 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 Columbia County customers is up to 70 Mbps.
Show all download speeds
- 48.4% up to 100.0 Mbps
- 10.8% up to 75.0 Mbps
- 20.4% up to 50.0 Mbps
- 7.8% up to 25.0 Mbps
- 12.6% up to 10.0 Mbps
EarthLink DSL upload speeds
In Columbia 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 one of the slowest compared to other Columbia 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 Columbia 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 14 Mbps.
Show all upload speeds
- 59.2% up to 20.0 Mbps
- 20.4% up to 10.0 Mbps
- 7.8% up to 5.0 Mbps
- 12.6% up to 1.0 Mbps
Windstream DSL in Columbia County, FL
Windstream DSL coverage
About 17.23%, or 12,006 people, have Windstream DSL internet available to them in the county. The company covers the southwest, southeast, south, northwest, and northeast Columbia County area. Windstream is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Columbia County.
Windstream DSL download speeds
Windstream is below average when comparing download speeds to all other internet providers in Columbia County. Versus other DSL providers in the area, Windstream DSL is the fastest. There are 6 different maximum speeds throughout Columbia County. The fastest plan anyone in Columbia County can order from Windstream goes up to 300 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Columbia County customers is up to 165 Mbps.
Show all download speeds
- 18.2% up to 300.0 Mbps
- 42.1% up to 200.0 Mbps
- 21.5% up to 100.0 Mbps
- 5.2% up to 50.0 Mbps
- 6.9% up to 25.0 Mbps
- 6.1% up to 10.0 Mbps
Windstream DSL upload speeds
In Columbia County download speeds tend to be faster than than upload speeds for Windstream DSL. Compared to other ISPs, Windstream is below average where upload speeds are concerned, and the fastest compared to other Columbia County DSL providers. Windstream offers 14 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 Columbia County is up to 83 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Windstream customers can get speeds up to 45 Mbps.
Show all upload speeds
- 17.5% up to 83.0 Mbps
- 2.4% up to 80.0 Mbps
- 0.3% up to 69.0 Mbps
- 46.4% up to 52.0 Mbps
- 0.8% up to 50.0 Mbps
- 0.6% up to 40.0 Mbps
- 6.0% up to 32.0 Mbps
- 4.0% up to 23.0 Mbps
- 0.1% up to 20.0 Mbps
- 3.0% up to 17.0 Mbps
- 0.2% up to 12.0 Mbps
- 1.3% up to 10.0 Mbps
- 11.2% up to 3.0 Mbps
- 6.1% up to 1.0 Mbps
Columbia County DSL by Area
This information is most helpful to those looking for homes or considering moving to Columbia County or any of the areas nearby.
How does DSL internet in Columbia County compare to the rest of Florida?
DSL internet speeds in Columbia County are much faster versus the average speeds in Florida: 0.00 Mbps in Florida versus 92 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Florida is 0.00% versus 74.89% in Columbia County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Columbia 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
- Union County, FL: more DSL coverage, faster speeds
- Suwannee County, FL: more DSL coverage, faster speeds
- Baker County, FL: more DSL coverage, slower speeds
- Lafayette County, FL: more DSL coverage, faster speeds
- Clay County, FL: less DSL coverage, slower speeds
- Taylor County, FL: more DSL coverage, slower speeds
- Duval County, FL: more DSL coverage, slower speeds
- Wakulla County, FL: more DSL coverage, slower speeds
- Bay County, FL: less DSL coverage, slower speeds
- St. John the Baptist Parish, LA: less DSL coverage, slower speeds
Counties with Similar Populations
- Starr County, TX: less DSL coverage, slower speeds
- Scioto County, OH: less DSL coverage, slower speeds
- Shiawassee County, MI: less DSL coverage, slower speeds
- Somerset County, PA: less DSL coverage, slower speeds
- Grant County, IN: less DSL coverage, slower speeds
- St. Francois County, MO: less DSL coverage, slower speeds
- Georgetown County, SC: less DSL coverage, slower speeds
- St. Joseph County, MI: less DSL coverage, slower speeds
- Garfield County, CO: more DSL coverage, slower speeds
- Sauk County, WI: more DSL coverage, slower speeds