Best Internet Providers in Mercer Island, WA
All 8 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Mercer Island, WA
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.
Ranks compare Mercer Island with the 1,383 US suburban and regional cities (25,000 to 49,999 people), the tiers of our fastest-cities rankings.
The Best Internet in Mercer Island, WA at a Glance
Mercer Island Internet 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
EarthLink
Connection
Customer Rating
Fixed Wireless
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
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?
Quantum Fiber is the highest-rated internet provider in Mercer Island based on 200 Washington customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
Click here to get Quantum Fiber
or call 1-833-875-1349
Which Providers are Available at my Home in Mercer Island?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Mercer Island
- XFINITY - cable coverage map
- Quantum Fiber - fiber coverage map
- Verizon - fixed wireless coverage map
- CenturyLink - fiber coverage map
- Astound Broadband - fiber coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- XFINITY - fiber coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- CenturyLink - dsl coverage map
How Mercer Island Compares to Places Its Size
Mercer Island's report card score is in the bottom 19% and its connectivity index is in the top 12%.
| Measure | Mercer Island | Rank among US suburban and regional cities (25,000 to 49,999 people) | King County | Washington | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 55.0% | bottom 24% | 60.4% | 53.5% | 71.5% | 25 places at 100.0% |
| Average top speed | 2,314 Mbps | bottom 38% | 2,721 Mbps | 2,784 Mbps | 3,486 Mbps | Hixson, TN (25,000 Mbps) |
| Providers at a typical address | 6.1 | bottom 25% | 6.5 | 6.5 | 7.1 | San Lorenzo, CA (13) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.6 | top 46% | 2.5 | 2.6 | 2.7 | Kiryas Joel, NY (5.1) |
| Workers who work from home | 39% | top 1% | 28% | 19% | 15% | Venice, CA (47%) |
| Homes with a computer, tablet or phone | 98% | top 13% | 98% | 97% | 96% | 16 places at 100% |
| Homes with internet | 96% | top 13% | 95% | 94% | 91% | 13 places at 99% |
| Homes on fiber, cable or DSL | 88% | top 9% | 85% | 80% | 76% | Burke, VA and Colleyville, TX and 3 more (94%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 95% | top 3% | 90% | 86% | 81% | University Park, TX (99%) |
| Median household income | $212,696 | top 2% | $138,460 | $109,860 | $93,246 | Scarsdale, NY ($244,191) |
| Residents in school (6th grade to college) | 17% | top 22% | 15% | 15% | 16% | Rexburg, ID (71%) |
Fiber reaches 55.0% of homes in Mercer Island, against 60.4% across King County and 53.5% across Washington. Households in Mercer Island are smaller than the US average (2.6 people against 2.7); 39% of workers work from home (US 15%); and the median household income is $212,696 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Mercer Island
Which Fiber Internet Providers are Available in Mercer Island?
Quantum Fiber in Mercer Island, WA
Availability:
50.0%
Customer Rating:
(52)
Avg. Download Speed
2,584 Mbps
Quantum Fiber offers Fiber service to 50.0% of Mercer Island homes. Across the city, Quantum Fiber is the only type of service available from the company, with speeds up to 2,584 Mbps, with speeds from 940 Mpbs up to 8,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 940 and as high as 8,000, with an average of 1,731 Mbps throughout the city.
CenturyLink Fiber in Mercer Island, WA
Availability:
34.4%
Customer Rating:
(62)
Avg. Download Speed
918 Mbps
CenturyLink offers Fiber service to 34.4% of Mercer Island homes. Across the city, CenturyLink Fiber has speeds up to 918 Mbps, with speeds from 10 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 1,000, with an average of 878 Mbps throughout the city. CenturyLink Fiber is rated lower than other types of internet service available in Mercer Island from CenturyLink in terms of customer satisfaction.
Astound Broadband Fiber in Mercer Island, WA
Availability:
11.1%
Customer Rating:
(21)
Avg. Download Speed
2,000 Mbps
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
Availability:
2.7%
Customer Rating:
(300)
Avg. Download Speed
2,000 Mbps
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 Fixed Wireless and LTE Internet Providers are Available in Mercer Island?
EarthLink Fixed Wireless in Mercer Island, WA
Availability:
94.2%
Customer Rating:
(4)
Avg. Download Speed
52 Mbps
EarthLink offers Fixed Wireless service to 94.2% of Mercer Island homes. Across the city, EarthLink Fixed Wireless is the only type of service available from the company, with speeds up to 52 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 9.0 Mbps throughout the city.
AT&T Fixed Wireless in Mercer Island, WA
Availability:
94.2%
Customer Rating:
(205)
Avg. Download Speed
52 Mbps
AT&T offers Fixed Wireless service to 94.2% 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 52 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 9.0 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Mercer Island, WA
Availability:
91.8%
Customer Rating:
(342)
Avg. Download Speed
88 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 91.8% 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 88 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 17 Mbps throughout the city.
Verizon Fixed Wireless in Mercer Island, WA
Availability:
80.2%
Customer Rating:
(362)
Avg. Download Speed
472 Mbps
Verizon offers Fixed Wireless service to 80.2% of Mercer Island homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 472 Mbps, with speeds from 25 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 75, with an average of 36 Mbps throughout the city.
Which Cable Internet Providers are Available in Mercer Island?
XFINITY Cable in Mercer Island, WA
Availability:
99.9%
Customer Rating:
(2077)
Avg. Download Speed
2,000 Mbps
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
Availability:
52.1%
Customer Rating:
(120)
Avg. Download Speed
58 Mbps
CenturyLink offers DSL service to 52.1% of Mercer Island homes. Across the city, CenturyLink DSL has speeds up to 58 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 100, with an average of 11 Mbps throughout the city. CenturyLink DSL is rated about the same as other types of internet service available in Mercer Island from CenturyLink in terms of customer satisfaction.
Internet in Mercer Island by Neighborhood and ZIP Code
Mercer Island has 2 neighborhoods and 1 ZIP code with their own pages. Each row links to that place’s page.
Neighborhoods in Mercer Island
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| McGilvra | 3,533 | 96.4% | 2,000 Mbps | 7.9 | B+ | 71/100 |
| Mercer Heights | 3,102 | 83.1% | 2,000 Mbps | 6.1 | B- | 93/100 |
ZIP codes in Mercer Island
| ZIP code | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| 98040 | 25,748 | 54.8% | 2,316 Mbps | 6.1 | B- | 87/100 |
How Mercer Island Compares to Nearby Places
The 10 places nearest to Mercer Island that have their own pages are all within 6 miles. Among them, Boulevard Park has the most homes with fiber (93.1%) and Medina the fewest (1.4%); Mercer Island has 55.0%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Mercer Island (this page) | 25,873 | 55.0% | 2,314 Mbps | 6.1 | B- | 87/100 |
| Seattle metro area | 4,018,762 | 59.1% | 3,083 Mbps | 6.2 | B- | 83/100 |
| Bellevue | 150,488 | 49.1% | 2,473 Mbps | 6.5 | B- | 87/100 |
| Bryn Mawr-Skyway | 19,744 | 63.7% | 2,879 Mbps | 5.9 | B- | 81/100 |
| Newcastle | 13,638 | 19.5% | 1,985 Mbps | 5.5 | C | 84/100 |
| Boulevard Park | 5,629 | 93.1% | 2,000 Mbps | 7.2 | B+ | 82/100 |
| Clyde Hill | 3,461 | 31.4% | 1,885 Mbps | 6 | C+ | 89/100 |
| Medina | 2,958 | 1.4% | 1,541 Mbps | 5.1 | C- | 89/100 |
| Yarrow Point | 1,134 | 91.5% | 7,492 Mbps | 6.8 | B+ | 92/100 |
| Hunts Point | 457 | 0.0% | 1,863 Mbps | 5.9 | C- | 92/100 |
| Beaux Arts Village | 317 | 100.0% | 1,498 Mbps | 3.8 | B- | 96/100 |
Who is the Fastest Internet Provider in Mercer Island?
Based on both FCC data and unbiased customer ratings, the fastest internet in the city comes from Quantum Fiber.
Data Reported to FCC by ISPs: Average Maximum Available in Mercer Island
| Quantum Fiber | 8,000 |
|---|---|
| XFINITY from Comcast | 2,000 |
| Astound Broadband | 2,000 |
| Verizon | 1,000 |
| CenturyLink | 1,000 |
| Viasat | 100 |
| AT&T | 100 |
| EarthLink | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Mercer Island. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Mercer Island Internet Providers
Based on 200 reviews from Washington internet customers, Quantum Fiber is the best internet service provider for Mercer Island residents. Quantum Fiber was rated at an average of 4.67 out of 5 in our report for overall customer satisfaction. T-Mobile Home Internet wins for second-place in Washington, with 4.00 out of 5 stars and 91.8% coverage in Mercer Island.
At a national level, based on 4960 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.02 out of 5.
Local, State, and National Ratings for all Mercer Island Internet Providers
The table below shows average customer ratings from customers in Mercer Island, Washington, and customers throughout the country.
| ISP / Tech Type | Mercer Island Overall | Washington Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| Quantum Fiber |  (0) |  (3) | (52) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (342) | View Plans | ||
| Verizon | (0) | (7) | (816) | View Plans | ||
| AT&T | (0) | (1) | (1051) | View Plans | ||
| CenturyLink | (0) | (24) | (183) | View Plans | ||
| XFINITY | (0) | (130) | (2379) | View Plans | ||
| HughesNet | (0) |  (2) |  (25) | View Plans | ||
| Astound Broadband | (0) | (21) | (122) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) |  (12) | View Plans |
Customer Ratings for Internet Provider Speeds in Mercer Island
Based on data reported by Mercer Island ISPs to the FCC, the fastest speeds in the city are available through Quantum Fiber. The company offers speeds up to 8,000 Mbps in Mercer Island. Therefore, the average customer can get up to 2,584 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
Additionally, actual customers rated their satisfaction with internet speed highest with Quantum Fiber. This indicates Quantum Fiber reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Mercer Island Speed | Washington Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| Quantum Fiber | (0) |  (3) | (52) | View Plans | ||
| Verizon | (0) | (7) | (816) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (342) | View Plans | ||
| XFINITY | (0) | (130) | (2379) | View Plans | ||
| AT&T | (0) | (1) | (1051) | View Plans | ||
| Astound Broadband | (0) | (21) | (122) | View Plans | ||
| CenturyLink | (0) | (24) | (183) | View Plans | ||
| HughesNet | (0) | (2) | (25) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Who is the Cheapest Internet Provider in Mercer Island?
Of the providers in Mercer Island, customers rate T-Mobile Home Internet the best for price. Data comes from customers rating their satisfaction with pricing: in Mercer Island where enough of them have reviewed a provider, otherwise across Washington or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
T-Mobile Home Internet is rated 3.86 out of 5 for price, which is similar to the average across all internet providers in the country. Quantum Fiber is rated second for affordability, with an average price rating of 4.33 out of 5.
The table below shows 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 | ||
|---|---|---|---|---|---|---|
| Quantum Fiber | (0) | (3) | (52) | View Plans | ||
| T-Mobile Home Internet | (0) | (14) | (342) | View Plans | ||
| Verizon | (0) | (7) | (816) | View Plans | ||
| CenturyLink | (0) | (24) | (183) | View Plans | ||
| AT&T | (0) |  (1) | (1051) | View Plans | ||
| HughesNet | (0) | (2) | (25) | View Plans | ||
| XFINITY | (0) | (130) | (2379) | View Plans | ||
| Astound Broadband | (0) | (21) | (122) | View Plans | ||
| EarthLink | (0) | (0) | (15) | View Plans | ||
| Viasat | (0) | (0) | (12) | View Plans |
Customer Reviews for Internet Service Providers in Washington
Customer Reviews
ISPReports User
HughesNet Satellite
August 05, 2026 ### One star only because zero isn’t an option HughesNet provided, without question, the worst internet service and customer service we have ever experienced. We remained customers for seven years—not because we were satisfied, but because we live in a rural area and had no other viable option. The service was never consistently reliable. Streaming a complete movie was nearly impossible. Calls repeatedly dropped, including calls made to HughesNet’s own customer service department because the connection was so unstable. When that happened, they wouldn’t call us back, and we often couldn’t reconnect with them to finish resolving the problem. HughesNet repeatedly claimed we had used all our data, even during periods when we had barely streamed anything and hadn’t managed to watch complete movies. We were told that exceeding the data allowance would only result in slower speeds, but what we experienced wasn’t merely a slowdown—the service would become completely disrupted and practically unusable. Technical support was equally frustrating. Technicians would identify problems or recommend solutions, only for HughesNet to refuse to authorize or implement what its own technicians recommended. We spent years calling, troubleshooting, repeating the same information, and being passed around without receiving a lasting solution. We paid every month for a service that frequently failed to provide even basic, dependable internet access. The moment fiber internet finally became available in our area, we left HughesNet. Since switching, the difference has been unbelievable: reliable service, uninterrupted streaming, stable calls, and none of the constant excuses or mysterious data problems we dealt with before. That alone confirmed that our devices and usage were not the real issue. Seven years with HughesNet gave them more than enough opportunity to provide the service and support we were paying for. They consistently failed at both. I would never recommend HughesNet to anyone. If it appears to be your only option, investigate absolutely every possible alternative before signing up. Being without internet may be less aggravating than paying for internet that repeatedly doesn’t work.
A Mukilteo, WA Customer
XFINITY Cable
June 15, 2026 My internet provider and has consistently provided me with fast speeds. I never have a problem with down loads or streaming. In addition there is never any down time. Even during occasional outages there is always communications from the company. In a short period of time the system is always back up and running.
A Pullman, WA Customer
Ziply Fiber
June 07, 2026 A Tacoma, WA Customer
T-Mobile Home Internet Fixed Wireless
May 16, 2026 I found T-Mobile home internet this year after many years of dissatisfaction with Comcast/Xfinity. So far, it has been a superior service for less money. We've had a couple of blips here and there, but resolved quickly with resetting the wireless router. The router plus 1 booster handles a whole house with about 10 continuously connected devices.
A Walla Walla, WA Customer
Spectrum Cable
May 11, 2026 My internet provider has done exactly what I expected. The outages have been minimal and short in nature. I've never had a major complaint. When a competitor came in with a way lower offer in our neighborhood, I was going to switch and Spectrum essentially sliced my bill in half just like that. I didn't even raise a stink, they just offered it right away. Great customer service and I'm totally fine with the speed they provide, since we're not very "active" internet users.
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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 Quantum Fiber.
- The fastest internet provider should be Quantum Fiber. Considering speed for the money and reliability in speeds, Quantum Fiber may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Mercer Island is T-Mobile Home Internet.
- XFINITY from Comcast, Viasat, and HughesNet has the broadest coverage in Mercer Island, available to 99.9% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.