In South Lake Union there are 2 residential DSL providers covering 66.35% of the neighborhood. The average home can get speeds up to 279 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 South Lake Union, Seattle, WA.
To see availability maps for all providers including fiber, cable, DSL, and more in South Lake Union, Seattle, WA please click below.
South Lake Union, Seattle, WA Availability Maps
DSL Internet Service Providers in South Lake Union
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 South Lake Union are not shown.
South Lake Union 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 South Lake Union is DSL internet available?
DSL Internet Availability Key
DSL is available in 66.35% of South Lake Union. 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 South Lake Union above to see who has service at your home.
How fast is DSL internet in South Lake Union?
The map below shows maximum DSL internet speeds by area in South Lake Union.
DSL Internet Speed Key
The average South Lake Union home can get up to 279 Mbps on their DSL internet plan. The fastest DSL download speed in the neighborhood is 1,000 Mbps, which 16.12% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 23.73% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in South Lake Union.
DSL internet speeds tend to be faster in the central parts of South Lake Union, and slower in the southeast areas of the neighborhood.
Is DSL the fastest internet I can get in South Lake Union?
The fastest internet for you may vary based on where in South Lake Union you live. In general, fiber competes most often with DSL in the neighborhood.
- Fiber is the fastest internet type for 95.54% of South Lake Union homes.
- Cable is fastest for 4.04% of the neighborhood.
- 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 South Lake Union homes.
DSL Providers in Depth
Below you'll find which TV and internet providers offer service in South Lake Union, along with details on where in South Lake Union and at what speeds.
Centurylink DSL in South Lake Union, Seattle, WA
Centurylink DSL coverage
About 58.14%, or 7,779 people, have Centurylink DSL internet available to them in the neighborhood. The company covers the entire South Lake Union area. Centurylink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of South Lake Union.
Centurylink DSL download speeds
Centurylink is the slowest when comparing download speeds to all other internet providers in South Lake Union. Versus other DSL providers in the area, Centurylink DSL is the slowest. There are 5 different maximum speeds throughout South Lake Union. The fastest plan anyone in South Lake Union can order from Centurylink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the neighborhood-wide average maximum speed for South Lake Union customers is up to 46 Mbps.
Show all download speeds
- 21.3% up to 100.0 Mbps
- 17.8% up to 80.0 Mbps
- 4.0% up to 60.0 Mbps
- 9.3% up to 40.0 Mbps
- 47.6% up to 10.0 Mbps
Centurylink DSL upload speeds
In South Lake Union download speeds tend to be faster than than upload speeds for Centurylink DSL. Compared to other ISPs, Centurylink is the slowest where upload speeds are concerned, and the slowest compared to other South Lake Union DSL providers. Centurylink offers 5 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in South Lake Union is up to 60 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, Centurylink customers can get speeds up to 5.5 Mbps.
Show all upload speeds
- 1.2% up to 60.0 Mbps
- 39.1% up to 10.0 Mbps
- 2.8% up to 5.0 Mbps
- 9.3% up to 3.0 Mbps
- 47.6% up to 1.0 Mbps
Astound Broadband DSL in South Lake Union, Seattle, WA
Astound Broadband DSL coverage
About 16.12%, or 2,157 people, have Astound Broadband DSL internet available to them in the neighborhood. The company covers the central, southwest, and north South Lake Union area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of South Lake Union.
Astound Broadband DSL download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in South Lake Union. Versus other DSL providers in the area, Astound Broadband DSL is the fastest. There are no different maximum speeds throughout South Lake Union. The fastest plan anyone in South Lake Union can order from Astound Broadband goes up to 1,000 Mbps, and all South Lake Union customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband DSL upload speeds
In South Lake Union 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 the fastest compared to other South Lake Union DSL providers. Astound Broadband offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in South Lake Union is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
South Lake Union DSL by Area
This information is most helpful to those looking for homes or considering moving to South Lake Union or any of the areas nearby.
How does DSL internet in South Lake Union compare to the rest of Seattle?
DSL internet speeds in South Lake Union are much faster versus the average speeds in Seattle: 0.00 Mbps in Seattle versus 279 Mbps in the neighborhood. The city has similar DSL availability compared to the neighborhood. Average DSL coverage in Seattle is 0.00% versus 66.35% in South Lake Union.
What zip codes have DSL internet?
DSL internet coverage varies by zip code and neighborhood. Some examples in or around South Lake Union 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 neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- Belltown, Seattle, WA: more DSL coverage, faster speeds
- Uptown, Seattle, WA: more DSL coverage, slower speeds
- Westlake, Seattle, WA: less DSL coverage, slower speeds
- Capitol Hill, Seattle, WA: more DSL coverage, slower speeds
- First Hill, Seattle, WA: more DSL coverage, slower speeds
- Pioneer Square, Seattle, WA: more DSL coverage, faster speeds
- Eastlake, Seattle, WA: more DSL coverage, slower speeds
- Central District, Seattle, WA: less DSL coverage, slower speeds
- Queen Anne, Seattle, WA: less DSL coverage, slower speeds
- International District, Seattle, WA: more DSL coverage, faster speeds
Neighborhoods with Similar Populations
- Brooklawn-St. Vincent, Bridgeport, CT: less DSL coverage, slower speeds
- Brookline, Pittsburgh, PA: less DSL coverage, slower speeds
- Buckeye-Shaker, Cleveland, OH: more DSL coverage, slower speeds
- Sky Line, San Diego, CA: more DSL coverage, slower speeds
- Allison Hill, Harrisburg, PA: less DSL coverage, slower speeds
- Valley Station, Louisville, KY: more DSL coverage, slower speeds
- West Colorado Springs, Colorado Springs, CO: more DSL coverage, slower speeds
- West Side, Stamford, CT: more DSL coverage, slower speeds
- Westside, Grand Rapids, MI: more DSL coverage, slower speeds
- Wilkes, Portland, OR: more DSL coverage, slower speeds