8 Best Internet Providers in Mercer Island, WA
Find internet availability by address in Mercer Island, WA
Jump to: Best Internet Provider | Availability Maps | Customer Reviews | Mercer Island ISP Report Card | Business Internet in Mercer Island
| Mercer Island ISP Report Card | B- | |
| Download Speed for Most Households | 2,000 Mbps | |
| Number of Internet Service Providers | 8 | |
| Real Mercer Island Customer Ratings | 5 |
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.
Mercer Island has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Mercer Island.
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Mercer Island has 8 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Mercer Island.
Compare Providers Ranked by Coverage, Speed, and Customer Ratings
XFINITY
Connection
Customer Rating
Fiber
Cable
Centurylink
Connection
Customer Rating
Fiber
DSL
Quantum Fiber
Connection
Customer Rating
Fiber
Astound Broadband
Connection
Customer Rating
Fiber
Above are the top 4 providers in Mercer Island, WA for most people based on high speed internet coverage, speeds, and customer reviews. Click below to see all providers in your city.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Mercer Island ratings may vary and are shown below.
Who is the Best Internet Provider in Mercer Island, WA?
Verizon is the best internet provider in Mercer Island based on Washington customer satisfaction ratings and reviews. Based on our extensive and unbiased survey, Verizon had the best reviews at the local, state, and national levels versus all available providers in Mercer Island, making it a solid recommendation among providers with reviews. Verizon is an option for 64.87% of the city.
or call 1-833-213-7018
The chart and table below show average customer ratings from customers in Mercer Island, Washington, and customers throughout the country.
Top Rated Internet Providers in Mercer Island
Local, State, and National Ratings for all Mercer Island Internet Providers
| ISP / Tech Type | Mercer Island Overall | Washington Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (7) | (723) | View Plans | ||
| XFINITY | (1) | (128) | (2164) | View Plans | ||
| Astound Broadband | (3) | (19) | (109) | View Plans | ||
| Quantum Fiber | (0) | (2) | (42) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (10) | (284) | View Plans | ||
| Centurylink | (0) | (23) | (163) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on 191 reviews from Washington internet customers, Verizon is the best internet service provider for Mercer Island residents. Verizon was rated at an average of 3.86 out of 5 in our report for overall customer satisfaction. XFINITY from Comcast wins for second-place in Washington, with 3.00 out of 5 stars and 100.0% coverage in Mercer Island.
At a national level, based on 4450 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.04 out of 5.
Which Providers are Available at my Home in Mercer Island?
a different provider.

Internet Availability Key
Speeds and coverage vary within the city, and sometimes even from block to block. The map shows speeds per provider and where each provider is available.
Who is the Fastest Internet Provider in Mercer Island?
According to unbiased feedback from real internet customers in the city, they reported being happiest with speeds provided by XFINITY from Comcast. On the other hand, based on data provided by the internet providers to the FCC, XFINITY from Comcast and Astound Broadband should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Mercer Island
| ISP / Tech Type | Max Advertised Speed | ||
|---|---|---|---|
| Astound Broadband | 2,000 Mbps | ||
| Quantum Fiber | 2,000 Mbps | ||
| XFINITY from Comcast | 2,000 Mbps | ||
| Verizon | 1,000 Mbps | ||
| Centurylink | 1,000 Mbps | ||
| T-Mobile Home Internet | 100 Mbps | ||
| AT&T | 100 Mbps | ||
| EarthLink | 100 Mbps | ||
| Viasat | 100 Mbps | ||
| HughesNet | 25 Mbps |
Customer Ratings for Internet Provider Speeds in Mercer Island
| ISP / Tech Type | Mercer Island Speed | Washington Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (7) | (723) | View Plans | ||
| XFINITY | (1) | (128) | (2164) | View Plans | ||
| Astound Broadband | (3) | (19) | (109) | View Plans | ||
| Quantum Fiber | (0) | (2) | (42) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| T-Mobile Home Internet | (0) | (10) | (284) | View Plans | ||
| Centurylink | (0) | (23) | (163) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Based on data reported by Mercer Island ISPs to the FCC, the fastest speeds in the city are available through XFINITY from Comcast and Astound Broadband. These internet providers offer speeds up to 2,000 Mbps in Mercer Island. Therefore, the average customer can get up to 2,000 Mbps if they're willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers in the city rated their satisfaction with internet speed highest with XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.
Who is the Cheapest Internet Provider in Mercer Island?
Washington customers rate Verizon as the cheapest internet service provider in state. Data comes from customers in the state rating their satisfaction with pricing. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
Verizon received a local rating of 4.00 out of 5, which is lower than the average across all internet providers in the country. XFINITY from Comcast is rated in second place for affordability by the company’s Mercer Island customers with an average price rating of 3.00 out of 5.
The chart and graph below show how customers in Mercer Island, Washington, and the United States rated the affordability of their internet service.
Rated Affordability in Mercer Island
| ISP / Tech Type | Mercer Island Affordability | Washington Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| Verizon | (1) | (7) | (723) | View Plans | ||
| XFINITY | (1) | (128) | (2164) | View Plans | ||
| Astound Broadband | (3) | (19) | (109) | View Plans | ||
| Quantum Fiber | (0) | (2) | (42) | View Plans | ||
| T-Mobile Home Internet | (0) | (10) | (284) | View Plans | ||
| Centurylink | (0) | (23) | (163) | View Plans | ||
| AT&T | (0) | (1) | (924) | View Plans | ||
| HughesNet | (0) | (1) | (18) | View Plans | ||
| EarthLink | (0) | (0) | (12) | View Plans | ||
| Viasat | (0) | (0) | (11) | View Plans |
Mercer Island Internet Health Assessment
ISP Reports evaluates the technological infrastructure across the United States. This includes assessing a grade for ISP providers and infrastructure in the city and setting an index number for the digital connectivity of its residents. You can view the ISP Report Card and the Digital Connectivity Index for Mercer Island below, including the metrics used and how Mercer Island compares to the rest of Washington and nation.
| Metric
(hover for details)
|
Mercer Island | Washington | USA | ||
|---|---|---|---|---|---|
| Fiber Availability Percent The percentage of households in Mercer Island that have a Fiber internet connection available to their home. | 51.74% | 51.43% | 67.25% | ||
| Average Download SpeedThe maximum download speed most households can get on average. This is measured by availability in a block group and weighted by the population in that area. | 2,000 Mbps | 2,720 Mbps | 3,293 Mbps | ||
| Provider CountThe number of providers available for most people. This is a weighted average by block rather than a total for Mercer Island. | 6.0 | 6.5 | 6.8 |
| Average Household SizeA larger household size in a city indicates that there will be a greater need for bandwidth due to simultaneous usage, multiple devices, and network congestion. | 2.6 | 2.6 | 2.7 | ||
| Work From Home PercentA higher percent of the population working from home indicates bandwidth requirements being more widely needed rather than consolidated to commercial portions of the city. | 35% | 17% | 14% | ||
| Households with DevicesA higher percentage of households with computing devices in the home indicates a higher level of infrastructure needed to support those households. | 98% | 97% | 95% | ||
| Households with InternetA higher percentage of households with internet indicates a higher need for usage and connectivity in people’s daily lives. | 97% | 93% | 90% | ||
| Households with BroadbandA higher percentage of households with a broadband connection (defined as speeds above 25 Mbps) indicates heavier usage needs within these households. | 89% | 80% | 75% | ||
| Broadband Usage vs. AvailabilityThis measures what percentage of households who have a broadband connection to their home actually have an active subscription to that service. | 89% | 81% | 76% |
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Mercer Island ISP Report Card & Digital Connectivity Index
The ISP Report Card in Mercer Island is B-, which is much better than other cities. The local demand for broadband internet connectivity in Mercer Island is high with a score of 89 / 100 in our Digital Connectivity Index. This means that internet service providers operating in Mercer Island have done a great job meeting the needs of its residents.
The Mercer Island ISP Report Card evaluates the city on availability and speed metrics compared to other cities in the United States. ISP Infrastructure can vary greatly and on its own isn’t a perfect measure of what a city needs. Please see our ISP Report Card along with the Digital Connectivity Index above to evaluate how well the connectivity demand is met by the existing infrastructure.
97% of Mercer Island households have an internet connection despite having 99.95% availability. 89% of households have fiber, cable, or DSL, 5% have satellite, 0% are still on dial-up, and 2% of households have internet but don’t pay for a subscription because it’s subsidized by the Affordable Connectivity Program.
As you can see in the table above, while 89% of households have a broadband connection such as fiber, cable or DSL available to their home, 89% subscribe to it. A very large amount of Mercer Island residents are taking advantage of the available internet infrastructure.
For more details, please visit our ISP Report Card and Digital Connectivity Index pages.
How do Neighboring Cities Compare to Mercer Island?
- ISP Report Card: B+
- Digital Connectivity Index: 98 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 85 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 87 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 89 / 100
- ISP Report Card: C+
- Digital Connectivity Index: 89 / 100
- ISP Report Card: B
- Digital Connectivity Index: 77 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 90 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 90 / 100
- ISP Report Card: B+
- Digital Connectivity Index: 79 / 100
How Much Speed does a Mercer Island Household Need?
Higher speed is typically preferred, but that comes at a higher price. The average size of a household in Mercer Island is 2.6, which is larger than the Washington average of 2.6 and smaller than the national average of 2.7. Mercer Island's average household income is $201,297 which is much higher than the Washington average of $106,027 and much higher than the national average of $90,606. Homes with more people living in them and with higher incomes tend to indicate more devices being used more often.
Mercer Island also has 17% of its population enrolled in school between the 6th grade and college level, this is higher than the Washington average of 15%. Additionally, 35% of residents work from home, which is higher than the 17% of residents in Washington who work from home. This and other factors you can see above show us that the community of Mercer Island has a very high need for internet connectivity and speeds.
Compared to the rest of the country, Mercer Island households are much more technology-engaged. 98% of households have some sort of computing device, 99% have desktops or laptops in the home, and 95% have smartphones. To see what speeds you are currently getting, please visit our internet speed test tool.
Which Fiber Internet Providers are Available in Mercer Island?
Quantum Fiber in Mercer Island, WA
Quantum Fiber offers Fiber service to 46.7% of Mercer Island homes. Across the city, Quantum Fiber is the only type of service available from the company, with speeds up to 1,954 Mbps, with speeds from 940 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 940 and as high as 1,000, with an average of 999 Mbps throughout the city.
Centurylink Fiber in Mercer Island, WA
Centurylink offers Fiber service to 38.5% of Mercer Island homes. Across the city, Centurylink Fiber has speeds up to 949 Mbps, with speeds from 40 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 5.0 and as high as 1,000, with an average of 814 Mbps throughout the city. Centurylink Fiber is rated higher than other types of internet service available in Mercer Island from Centurylink in terms of customer satisfaction.
Astound Broadband Fiber in Mercer Island, WA
Astound Broadband offers Fiber service to 11.1% of Mercer Island homes. Across the city, Astound Broadband Fiber is the only type of service available from the company, with speeds up to 2,000 Mbps
XFINITY Fiber in Mercer Island, WA
XFINITY from Comcast offers Fiber service to 2.7% of Mercer Island homes. Across the city, XFINITY Fiber has speeds up to 2,000 Mbps
Which Cable Internet Providers are Available in Mercer Island?
XFINITY Cable in Mercer Island, WA
XFINITY from Comcast offers Cable service to 99.9% of Mercer Island homes. Across the city, XFINITY Cable has speeds up to 2,000 Mbps
Which DSL Internet Providers are Available in Mercer Island?
Centurylink DSL in Mercer Island, WA
Centurylink offers DSL service to 56.2% of Mercer Island homes. Across the city, Centurylink DSL has speeds up to 52 Mbps, with speeds from 10 Mpbs up to 140 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 5.4 Mbps throughout the city. Centurylink DSL is rated lower than other types of internet service available in Mercer Island from Centurylink in terms of customer satisfaction.
Which Fixed Wireless and LTE Internet Providers are Available in Mercer Island?
EarthLink Fixed Wireless in Mercer Island, WA
EarthLink offers Fixed Wireless service to 96.2% of Mercer Island homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 50 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 8.7 Mbps throughout the city.
AT&T Fixed Wireless in Mercer Island, WA
AT&T offers Fixed Wireless service to 96.2% of Mercer Island homes. Across the city, AT&T Fixed Wireless is the only type of service available from the company, with speeds up to 50 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 8.7 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Mercer Island, WA
T-Mobile Home Internet offers Fixed Wireless service to 90.9% of Mercer Island homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 89 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 18 Mbps throughout the city.
Verizon Fixed Wireless in Mercer Island, WA
Verizon offers Fixed Wireless service to 64.9% of Mercer Island homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 617 Mbps, with speeds from 300 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 20 and as high as 75, with an average of 45 Mbps throughout the city.
Which ISP Should You Choose in Mercer Island?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Mercer Island is Verizon.
- The fastest internet provider should be XFINITY from Comcast and Astound Broadband. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Mercer Island is Verizon.
- XFINITY from Comcast, Viasat, and HughesNet has the broadest coverage in Mercer Island, and is most likely to cover your home. To find out exactly what's available at your home, please use our address search tool.
How does Mercer Island compare to other cities with a similar population?
To see how Mercer Island stacks up on the national level, it's useful to look at some other cities with similarly sized populations. Below you can see a list of these cities and how they compare to Mercer Island's B- ISP Report Card and 89 / 100 Digital Connectivity Index.
- ISP Report Card: B-
- Digital Connectivity Index: 74 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 84 / 100
- ISP Report Card: C-
- Digital Connectivity Index: 76 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 84 / 100
- ISP Report Card: B
- Digital Connectivity Index: 92 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 78 / 100
- ISP Report Card: B-
- Digital Connectivity Index: 59 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 71 / 100
- ISP Report Card: A-
- Digital Connectivity Index: 77 / 100
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