Seattle, Washington · King County
Internet Providers in Seattle, WA: Compare Xfinity, Ziply Fiber & 5G Home
Xfinity is the dominant cable provider across most of the city. Ziply Fiber (formerly CenturyLink in Washington state) covers a growing portion with true fiber. T-Mobile 5G home fills gaps and serves as a low-friction entry. The fiber footprint is real but partial — where you live determines which you can get.
Here is what your address can actually access, what the first bill looks like, and how to choose without overpaying.
Sam here. Seattle is a tech hub where a surprising number of households are still on cable simply because they do not know Ziply fiber has reached their block. This page makes that easy to check.
📍 Check what's available at your Seattle address
Seattle's topography creates coverage dead zones even a few blocks apart. Check your building, not just your neighbourhood.
No sign-up. Or call: (978) 723-5746
The three that stand out in Seattle
Ships in days, self-installs, month to month. Speed varies with tower proximity but handles streaming and basic work for one or two people. Good bridge while a wired installation is being scheduled.
Seattle's dense hills can affect outdoor 5G signal. Test within the return window before committing.
Widest footprint in the city. Competitive promotional pricing. The reliable baseline almost everywhere. Upload is lower than download on cable — a technology constraint that matters if you work from home.
Where Ziply fiber reaches your address, it competes seriously on upload speed and year-two pricing. Check both.
The rebranded CenturyLink fiber network in Washington. Where it reaches, Ziply offers symmetrical upload with competitive entry pricing and a price-lock guarantee on some plans. Footprint is smaller than Xfinity but expanding.
Ziply's DSL legacy still exists in some Seattle areas. Confirm the plan you are ordering is fiber.
Every Seattle option — narrowed to what fits you
Showing all options
Formerly CenturyLink in WA. Where it reaches, Ziply fiber offers symmetrical upload and price-lock plans. Verify it is fiber (not DSL) at your address.
Symmetrical upload on all plansWidest footprint in Seattle. Competitive intro pricing. Upload is the technology constraint — cable can never match fiber upload.
Good bridge option or light-use permanent solution. Seattle's hills affect indoor 5G signal. Test before committing.
Try widening one filter — or call Sam on (978) 723-5746.
Ziply's entry pricing in Seattle is competitive with Xfinity's intro rate, and the upload story is completely different. If fiber reaches your address, it is worth the switch. The address check takes 30 seconds.
Why our list is short
Three providers, not fifteen
Providers we left out — and why
Satellite
Satellite
Cable, limited Seattle footprint
How much speed do you actually need?
Email, music, basic browsing. Fine for one person, not a household.
Upload too low for video callsOne video stream, one video call, one active user. The floor for a working household.
Cable upload struggles with screen shareHD streaming, gaming without frustration, background downloads.
Fine for most homes. Cable upload still a constraint.4K on multiple screens, several people working. Where most households actually land.
Symmetrical fiber here beats gigabit cable for remote workAnything, simultaneously, without thinking.
Buy this for upload, not downloadThree questions Seattle residents ask
Is CenturyLink the same as Ziply Fiber in Seattle?
Yes. Ziply Fiber acquired CenturyLink's residential network in Washington, Oregon, Idaho, and Montana in 2020 and has since been expanding and upgrading it to fiber. If you had CenturyLink internet in Seattle, that service is now Ziply Fiber. The network is better than what CenturyLink maintained, and the fiber build-out is ongoing.
What is the cheapest internet in Seattle?
Xfinity and Ziply Fiber both advertise entry rates around $30 a month. T-Mobile 5G Home is $50 flat with no promo step-up. Over two years, the flat-rate T-Mobile option often competes with Xfinity once you factor in the standard-rate jump at month thirteen.
What is the best internet provider in Seattle?
Ziply Fiber where it reaches — symmetrical upload, strong entry pricing, expanding footprint. Xfinity as the widest-coverage fallback. T-Mobile 5G for no-contract flexibility or light use.
The thing nobody shows you
What bill one actually looks like
The ranking flip
The ranking changes when you count two years
| Ranked by 24-month estimated total | Advertised | Est. 24-mo total | Rank by ad price |
|---|---|---|---|
| 1Ziply Fiber | ~$30 | ~$1,080 | — was 1st tied |
| 2T-Mobile 5G Home | ~$50 | ~$1,200 | — was 3rd |
| 3Xfinity (with step-up) | ~$30 | ~$1,200–1,440 | — was 1st tied |
Estimates include equipment and promotional step-up. Taxes excluded. Verify with each provider.
If Ziply fiber reaches your address, it is very likely the best two-year value in Seattle — symmetrical upload, competitive entry price, and a price-lock option that Xfinity does not offer on its standard plans.
Coverage across Seattle
Seattle, neighbourhood by neighbourhood
Capitol Hill & First Hill
98122 · 98104Capitol Hill has relatively strong fiber availability given its density and proximity to downtown infrastructure. Ziply's overbuild has been active here. Xfinity cable covers the area well. Older apartment buildings may have wiring constraints.
Ballard & Fremont
98107 · 98103North Seattle neighbourhoods with a mix of newer construction and older bungalows. Xfinity cable is reliable here. Ziply fiber coverage is present but check your specific address — street-by-street variation is real.
Columbia City & Rainier Valley
98118 · 98108South Seattle coverage is generally solid for cable. Ziply fiber penetration is less uniform here than in North Seattle. T-Mobile 5G is a viable option in areas where Ziply has not yet built. Worth checking before assuming cable is the only option.
Bellevue & Eastside
98004 · 98005 · 98006Technically across the lake, but a common query. Xfinity and Ziply both serve Bellevue. Frontier (different from Ziply) has a presence in some Eastside areas. If you are in Bellevue or Redmond, run the address check specifically — provider footprints differ across the I-90 and 520 corridors.
Five Seattle households — five different right answers
📦 You just moved to Seattle
Seattle's rental market moves fast. Installation appointment windows can stretch, especially during summer. If you moved into a building with a bulk agreement, you may not have a choice of provider anyway — check with your property manager first.
Sam suggests: order the wired installation before move-in if possible. Bridge the gap with T-Mobile 5G if the schedule does not align.
💰 Your Xfinity bill went up
Almost always the promo period ending. Call Xfinity retention — they have offers that are not posted publicly. If Ziply fiber has reached your block, that may be the moment to switch.
Sam suggests: know your month-thirteen Xfinity rate before calling anyone. Compare it against Ziply's base rate if fiber is available.
💻 You work from home
Upload speed is the metric that matters, not the headline download number. Cable upload in Seattle, like everywhere, is a fraction of its download rate — a technology limit, not a tier choice. Ziply fiber is symmetrical on every plan.
Sam suggests: Ziply fiber for any Seattle home office where it is available. A 300 Mbps symmetrical plan outperforms gigabit Xfinity cable for daily remote work. See best internet for remote work.
🎮 You game or stream
Latency and consistency matter more than peak bandwidth for gaming. Seattle's 5G can be congested in the evening in dense neighbourhoods. Wired is more predictable for latency-sensitive play.
Sam suggests: Ziply fiber first, Xfinity cable second. 5G home is a last resort for gaming specifically.
🏷 Lowest cost that still works
If Ziply fiber is available, its entry rate matches Xfinity's intro and the upload story is completely different — often the better two-year value even at the same monthly rate. If neither is available, T-Mobile at $50 flat avoids the promo-cliff problem entirely.
Sam suggests: check Ziply first, then decide. See cheap internet plans guide.
Things to know before signing up
Ziply Fiber still operates legacy DSL copper in some Seattle areas. The name does not guarantee fiber. Confirm the plan is fiber at your address before ordering.
ask specifically5G signal can be blocked or weakened by Seattle's hills and dense tree canopy. Test throughput indoors before relying on wireless as a permanent solution.
test in the return windowXfinity rents a gateway. Ziply includes their router on most plans. Both allow your own router as an alternative.
up to $15/mo if rentedSome advertised rates assume autopay enrollment. Not enrolling adds a surcharge to the monthly total.
+$5–10/moXfinity promotional rates typically expire after twelve months. The standard rate is higher. Ziply's price-lock plans hold the rate through the guarantee period.
+$15–20/mo on cableWhat people in Seattle are reporting
Ziply Fiber scores better in customer satisfaction than most cable providers in this region. The infrastructure investment shows in both performance data and anecdotal feedback from Seattle users we talk to.
Questions Seattle residents ask
Is Ziply Fiber actually fiber at my Seattle address?
Ziply Fiber is actively replacing the old CenturyLink copper infrastructure with fiber, but the build-out is not complete citywide. Some addresses that show Ziply coverage may still be served by DSL on copper. The address check above will confirm whether your address has true fiber or legacy copper. You can also call Ziply directly and specifically ask whether the plan for your address is FTTH (fiber to the home) or DSL.
Can I get gigabit internet in Seattle?
Yes. Both Xfinity and Ziply Fiber offer gigabit tiers in Seattle. Xfinity's gigabit is download-heavy, with upload far below. Ziply's gigabit is symmetrical. Which you can get depends on what reaches your address. Check your specific building rather than relying on neighbourhood-level estimates.
Does Seattle have any local internet providers?
Wave Broadband operates in parts of the greater Seattle metro, primarily in suburban areas rather than the city proper. The city itself is served by Xfinity, Ziply, and 5G home options. There is no large locally-owned city-wide ISP equivalent to a municipal broadband system in Seattle.
How long does Ziply Fiber installation take in Seattle?
At an address with existing Ziply infrastructure, installation is typically one to two weeks. If your building or street has not previously had Ziply service, a new fiber drop may take longer. Order early if you have a move-in date.
What is the best internet for gaming in Seattle?
Ziply Fiber if it reaches your address. Low latency and consistent speeds matter more than peak bandwidth for gaming. Xfinity cable is a solid second. 5G home can introduce latency variability in the evenings when tower congestion increases.
Does Xfinity have a data cap in Seattle?
Yes. Xfinity applies a 1.2 TB monthly data threshold. Overages are billed at $10 per 50 GB. An unlimited add-on is available for ~$30/month. Heavy streamers, multi-person households, and work-from-home users who share large files may want to factor this in.
Do Seattle internet providers require contracts?
No. Xfinity, Ziply, and T-Mobile 5G Home are all available without long-term contracts. The real risk is the promotional pricing step-up — not a contract, but functionally similar if you do not plan to shop around at month thirteen.
Which is better for working from home in Seattle — Xfinity or Ziply?
Ziply Fiber for upload-heavy work. If you are on video calls all day or share large files regularly, symmetrical fiber upload makes a real daily difference. If Ziply is not at your address, Xfinity 600 Mbps or higher cable is the next best option.
Guides worth reading
Nearby cities
Still not sure which is right for your Seattle address?
Seattle is a market where the right answer genuinely varies by block. Tell us your address and we will tell you what reaches it, what the first bill looks like, and whether the year-two rate makes sense.
Mon–Sun 8am–10pm EST · Free · No commitment · Same fee whichever plan you choose
Sources & method
- Pricing verified against each provider's public ordering page.
- Availability confirmed at street-address level. Ranges shown where sources disagree.
- Satisfaction data from J.D. Power 2025 US Residential ISP Study.
- Affiliate disclosure: ShopLikeSam earns the same referral fee regardless of which plan you choose. How we compare.
📱 Phone Plans
Best phone plans in Seattle
T-Mobile's headquarters city. The strongest T-Mobile 5G network in the US is right here. MVNOs on those towers cut bills by 50–70%.
Build-your-own: pay for only the data you use. 1 GB at $9/mo, unlimited at $29/mo. No activation fee. Same T-Mobile towers as a full-price plan — and T-Mobile's towers in Seattle are its best.
5 GB for $15/mo for the first three months, then ~$25/mo annual. Same T-Mobile towers that are at their strongest in Seattle. Half the price of T-Mobile direct.
Verizon C-Band 5G covers downtown Seattle and the Eastside well. Visible gives you unlimited on that network at $25/mo flat — no contract.
All Seattle phone plans, filtered
Showing all options
Build your own. Pay only for data you use. No activation fee, no contract. T-Mobile's Seattle towers are its best in the US.
Cheapest plan in Seattle3-month intro, then 12-month plan. Same T-Mobile HQ towers. ~$25–30/mo unlimited on the annual plan.
Best value — T-Mobile at its bestUnlimited on Verizon's network. $25/mo base, $45 for premium priority data. No contract.
Full T-Mobile unlimited with priority data. Direct-carrier access to T-Mobile's showcase Seattle network.
Mid-tier AT&T unlimited. Good for AT&T coverage areas across the greater Seattle metro.
Verizon's entry unlimited. C-Band 5G strong in downtown Seattle and the Eastside. Full Verizon network access.
Call Sam on (978) 723-5746.
Seattle is the one US city where I would say T-Mobile's network is in a class of its own. The HQ investment is real and noticeable. MVNOs like Mint and Tello ride those same towers for a fraction of the price. Visible on Verizon is the best alternative-network pick for the downtown core.