In Columbia County there is 1 residential DSL provider covering 85.78% of the county. 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 Columbia County, WA.
To see availability maps for all providers including fiber, cable, DSL, and more in Columbia County, WA please click below.
Columbia County, WA Availability Maps
DSL Internet Service Provider 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 85.78% of Columbia County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Centurylink. 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 10 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 10 Mbps, which 85.78% of residents can get.
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 75.99% of Columbia County homes.
- Cable is fastest for 1.85% of the county.
- DSL is fastest for 2.18%.
- Fixed wireless is fastest for 14.40%.
- Satellite internet may be the only option for 5.59% 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.
Centurylink DSL in Columbia County, WA
Centurylink DSL coverage
About 85.45%, or 3,377 people, have Centurylink DSL internet available to them in the county. The company covers the entire Columbia County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Columbia County.
Centurylink DSL download speeds
Centurylink is one of the slowest when comparing download speeds to all other internet providers in Columbia County. Versus other DSL providers in the area, Centurylink DSL is one of the fastest. There are no different maximum speeds throughout Columbia County. The fastest plan anyone in Columbia County can order from Centurylink goes up to 10 Mbps, and all Columbia County customers can get this speed.
Show all download speeds
- 100.0% up to 10.0 Mbps
Centurylink DSL upload speeds
In Columbia County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Columbia County DSL providers. Centurylink offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Columbia County is up to 1.0 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% 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 Washington?
DSL internet speeds in Columbia County are much faster versus the average speeds in Washington: 0.00 Mbps in Washington versus 10 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Washington is 0.00% versus 85.78% 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
- Garfield County, WA: less DSL coverage, faster speeds
- Asotin County, WA: more DSL coverage, faster speeds
- Nez Perce County, ID: more DSL coverage, faster speeds
- Franklin County, WA: less DSL coverage, faster speeds
- Benton County, WA: less DSL coverage, faster speeds
- Lewis County, ID: more DSL coverage, faster speeds
- Clearwater County, ID: less DSL coverage, faster speeds
- Ravalli County, MT: more DSL coverage, faster speeds
- Granite County, MT: more DSL coverage, faster speeds
- Powell County, MT: less DSL coverage, faster speeds
Counties with Similar Populations
- Decatur County, IA: less DSL coverage, faster speeds
- Dewey County, OK: less DSL coverage, faster speeds
- Deuel County, NE: less DSL coverage, faster speeds
- Desha County, AR: less DSL coverage, faster speeds
- Denali Borough, AK: more DSL coverage, faster speeds
- Delta County, TX: more DSL coverage, faster speeds
- Terry County, TX: less DSL coverage, faster speeds
- Deer Lodge County, MT: less DSL coverage, faster speeds
- Teton County, ID: more DSL coverage, faster speeds
- Teton County, MT: less DSL coverage, faster speeds