In Cowlitz County there are 4 residential DSL providers covering 86.65% of the county. The average home can get speeds up to 656 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 Cowlitz County, WA.
To see availability maps for all providers including fiber, cable, DSL, and more in Cowlitz County, WA please click below.
Cowlitz County, WA Availability Maps
DSL Internet Service Providers in Cowlitz 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 Cowlitz County are not shown.
Cowlitz 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 Cowlitz County is DSL internet available?
DSL Internet Availability Key
DSL is available in 86.65% of Cowlitz County. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Astound Broadband. Call one of the companies with service in Cowlitz County above to see who has service at your home.
How fast is DSL internet in Cowlitz County?
The map below shows maximum DSL internet speeds by area in Cowlitz County.
DSL Internet Speed Key
The average Cowlitz County home can get up to 656 Mbps on their DSL internet plan. The fastest DSL download speed in the county is 1,000 Mbps, which 55.77% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 15.16% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Cowlitz County.
DSL internet speeds tend to be faster in the east parts of Cowlitz County, and slower in the northeast areas of the county.
Is DSL the fastest internet I can get in Cowlitz County?
The fastest internet for you may vary based on where in Cowlitz County you live. In general, fiber competes most often with DSL in the county.
- Fiber is the fastest internet type for 57.62% of Cowlitz County homes.
- Cable is fastest for 33.97% of the county.
- DSL is fastest for 5.88%.
- Fixed wireless is fastest for 2.22%.
- Satellite internet may be the only option for less than 1% of Cowlitz County homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in Cowlitz County, along with details on where in Cowlitz County and at what speeds.
Centurylink DSL in Cowlitz County, WA
Centurylink DSL coverage
About 63.58%, or 70,403 people, have Centurylink DSL internet available to them in the county. The company covers the entire Cowlitz County area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Cowlitz County.
Centurylink DSL download speeds
Centurylink is below average when comparing download speeds to all other internet providers in Cowlitz County. Versus other DSL providers in the area, Centurylink DSL is below average. There are 6 different maximum speeds throughout Cowlitz County. The fastest plan anyone in Cowlitz County can order from Centurylink goes up to 140 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Cowlitz County customers is up to 39 Mbps.
Show all download speeds
- 0.1% up to 140.0 Mbps
- 6.2% up to 100.0 Mbps
- 8.3% up to 80.0 Mbps
- 22.9% up to 60.0 Mbps
- 20.1% up to 40.0 Mbps
- 42.3% up to 10.0 Mbps
Centurylink DSL upload speeds
In Cowlitz County download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is below average where upload speeds are concerned, and average compared to other Cowlitz County DSL providers. Centurylink offers 7 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 Cowlitz County is up to 100 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 7.9 Mbps.
Show all upload speeds
- 3.6% up to 100.0 Mbps
- 1.8% up to 40.0 Mbps
- 3.0% up to 20.0 Mbps
- 7.0% up to 10.0 Mbps
- 27.7% up to 5.0 Mbps
- 14.7% up to 3.0 Mbps
- 42.3% up to 1.0 Mbps
Astound Broadband DSL in Cowlitz County, WA
Astound Broadband DSL coverage
About 55.77%, or 61,755 people, have Astound Broadband DSL internet available to them in the county. The company covers the entire Cowlitz County area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Cowlitz County.
Astound Broadband DSL download speeds
Astound Broadband is average when comparing download speeds to all other internet providers in Cowlitz County. Versus other DSL providers in the area, Astound Broadband DSL is the fastest. There are no different maximum speeds throughout Cowlitz County. The fastest plan anyone in Cowlitz County can order from Astound Broadband goes up to 1,000 Mbps, and all Cowlitz County customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband DSL upload speeds
In Cowlitz County download speeds tend to be faster than than upload speeds for Astound Broadband DSL. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and average compared to other Cowlitz County DSL providers. Astound Broadband offers no different upload speeds across the county. The fastest upload speed available to anyone from this ISP in Cowlitz County is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
Ziply DSL in Cowlitz County, WA
Ziply DSL coverage
About 7.86%, or 8,708 people, have Ziply DSL internet available to them in the county. The company covers the southeast Cowlitz County area. Ziply is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Cowlitz County.
Ziply DSL download speeds
Ziply is below average when comparing download speeds to all other internet providers in Cowlitz County. Versus other DSL providers in the area, Ziply DSL is the slowest. There are 6 different maximum speeds throughout Cowlitz County. The fastest plan anyone in Cowlitz County can order from Ziply goes up to 115 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Cowlitz County customers is up to 34 Mbps.
Show all download speeds
- 14.7% up to 115.0 Mbps
- 1.1% up to 90.0 Mbps
- 3.8% up to 70.0 Mbps
- 14.3% up to 45.0 Mbps
- 0.8% up to 32.0 Mbps
- 65.3% up to 10.0 Mbps
Ziply DSL upload speeds
In Cowlitz County download speeds tend to be faster than than upload speeds for Ziply DSL. Compared to other ISPs, Ziply is below average where upload speeds are concerned, and the slowest compared to other Cowlitz County DSL providers. Ziply 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 Cowlitz County is up to 7.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Ziply customers can get speeds up to 2.3 Mbps.
Show all upload speeds
- 14.7% up to 7.0 Mbps
- 1.1% up to 5.0 Mbps
- 18.9% up to 3.0 Mbps
- 65.3% up to 1.0 Mbps
Tenino Telephone Company DSL in Cowlitz County, WA
Tenino Telephone Company DSL coverage
About 6.21%, or 6,871 people, have Tenino Telephone Company DSL internet available to them in the county. The company covers the southeast and south Cowlitz County area. Tenino Telephone Company is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Cowlitz County.
Tenino Telephone Company DSL download speeds
Tenino Telephone Company is below average when comparing download speeds to all other internet providers in Cowlitz County. Versus other DSL providers in the area, Tenino Telephone Company DSL is below average. There are 3 different maximum speeds throughout Cowlitz County. The fastest plan anyone in Cowlitz County can order from Tenino Telephone Company goes up to 50 Mbps, the slowest package only goes up to 10 Mbps, and the county-wide average maximum speed for Cowlitz County customers is up to 46 Mbps.
Show all download speeds
- 89.1% up to 50.0 Mbps
- 2.8% up to 25.0 Mbps
- 8.0% up to 10.0 Mbps
Tenino Telephone Company DSL upload speeds
In Cowlitz County download speeds tend to be faster than than upload speeds for Tenino Telephone Company DSL. Compared to other ISPs, Tenino Telephone Company is below average where upload speeds are concerned, and average compared to other Cowlitz County DSL providers. Tenino Telephone Company offers 3 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 Cowlitz County is up to 10 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Tenino Telephone Company customers can get speeds up to 9.1 Mbps.
Show all upload speeds
- 89.1% up to 10.0 Mbps
- 2.8% up to 5.0 Mbps
- 8.0% up to 1.0 Mbps
Cowlitz County DSL by Area
This information is most helpful to those looking for homes or considering moving to Cowlitz County or any of the areas nearby.
How does DSL internet in Cowlitz County compare to the rest of Washington?
DSL internet speeds in Cowlitz County are much faster versus the average speeds in Washington: 0.00 Mbps in Washington versus 656 Mbps in the county. The state has similar DSL availability compared to the county. Average DSL coverage in Washington is 0.00% versus 86.65% in Cowlitz County.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around Cowlitz 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
- Columbia County, OR: more DSL coverage, slower speeds
- Wahkiakum County, WA: less DSL coverage, faster speeds
- Lewis County, WA: more DSL coverage, slower speeds
- Clark County, WA: less DSL coverage, slower speeds
- Clatsop County, OR: more DSL coverage, slower speeds
- Pacific County, WA: less DSL coverage, slower speeds
- Skamania County, WA: less DSL coverage, slower speeds
- Hood River County, OR: more DSL coverage, slower speeds
- Klickitat County, WA: more DSL coverage, slower speeds
- Yakima County, WA: more DSL coverage, slower speeds
Counties with Similar Populations
- Yamhill County, OR: less DSL coverage, slower speeds
- Madison County, MS: less DSL coverage, slower speeds
- Macon County, IL: less DSL coverage, slower speeds
- Mercer County, PA: less DSL coverage, slower speeds
- Adams County, PA: less DSL coverage, slower speeds
- LaSalle County, IL: less DSL coverage, slower speeds
- Navajo County, AZ: less DSL coverage, slower speeds
- Rockwall County, TX: less DSL coverage, slower speeds
- St. Lawrence County, NY: less DSL coverage, slower speeds
- Sumter County, SC: less DSL coverage, slower speeds