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Google Fiber vs Xfinity in Salt Lake City
Salt Lake City’s trade-off is clear: Google Fiber delivers stronger upload speeds where available, while Xfinity reaches more homes at a lower starting price.
Xfinity is the better overall pick because it reaches about 98% of Salt Lake City, starts at $40/mo, and offers strong download speeds. Google Fiber wins on speed, with faster downloads and uploads where it reaches your address; Xfinity wins on coverage and price. Google Fiber is the better fit for heavy uploaders and demanding households that can get it. Xfinity is right for most shoppers who want broader availability and a lower starting bill.
At a glance
Google Fiber vs. Xfinity, side by side.
| Provider | Type | Top speed | City coverage | Starting price | Best for |
|---|---|---|---|---|---|
| Google Fiber |
Fiber | 8 Gig 8 Gig upload |
60% | $70/mo | Top fiber speeds |
| Xfinity |
Cable | 2 Gig 300 Mbps upload |
98% | $40/mo | Widest availability |
Coverage map
Two different questions, two views. Top speed shows who offers the faster plan where you can actually get it. Coverage shows who reaches more of each ZIP. Or pick a single provider to see just its footprint.
Neighborhood breakdown
The head-to-head can shift by ZIP code and neighborhood because coverage varies block to block in Salt Lake City. Xfinity reaches about 98% of the city overall, while Google Fiber reaches about 60%, so check your exact address before choosing the faster option.
| ZIP | Neighborhoods | Coverage | Top speed | Rank score | Winner | |||
|---|---|---|---|---|---|---|---|---|
| Google Fiber | Xfinity | Google Fiber | Xfinity | Google Fiber | Xfinity | |||
| 84121 | Cottonwood Heights, Willow Creek, Big Cottonwood Canyon, Sandy | 6% | 95% | 8 Gig | 2 Gig | 6 | 72 | Xfinity |
| 84118 | Kearns, Taylorsville, West Valley City | 87% | 99% | 8 Gig | 2 Gig | 82 | 75 | Google Fiber |
| 84106 | Sugar House, Millcreek, Liberty Wells, East Liberty Park | 91% | 100% | 8 Gig | 2 Gig | 87 | 76 | Google Fiber |
| 84109 | Millcreek, Canyon Rim, Olympus Cove, Wasatch Hollow | 94% | 97% | 8 Gig | 2 Gig | 89 | 73 | Google Fiber |
| 84129 | Taylorsville, Kearns, West Valley City | 87% | 100% | 8 Gig | 2 Gig | 82 | 76 | Google Fiber |
| 84123 | Taylorsville, Murray, Millcreek | 33% | 100% | 8 Gig | 2 Gig | 32 | 76 | Xfinity |
| 84104 | Poplar Grove, Glendale, Fairpark, Euclid | 71% | 99% | 8 Gig | 2 Gig | 68 | 75 | Xfinity |
| 84115 | South Salt Lake, Central Pointe, Ballpark | 74% | 100% | 8 Gig | 2 Gig | 71 | 76 | Xfinity |
| 84116 | Rose Park, Fairpark, Westpointe, North Salt Lake border | 85% | 98% | 8 Gig | 2 Gig | 81 | 75 | Google Fiber |
| 84107 | Murray, Union, Cottonwood | 15% | 99% | 8 Gig | 2 Gig | 15 | 75 | Xfinity |
| 84105 | Sugar House, Yalecrest, East Bench, Wasatch Hollow | 97% | 100% | 8 Gig | 2 Gig | 92 | 76 | Google Fiber |
| 84117 | Holladay, Millcreek, Cottonwood | 70% | 100% | 8 Gig | 2 Gig | 67 | 76 | Xfinity |
| 84124 | Holladay, Cottonwood Heights, Mount Olympus | 89% | 99% | 8 Gig | 2 Gig | 85 | 75 | Google Fiber |
| 84108 | Bonneville Hills, Federal Heights, Research Park, St. Mary’s | 92% | 95% | 8 Gig | 2 Gig | 87 | 72 | Google Fiber |
| 84102 | The Avenues, University of Utah area, East Central, Gilmer Park | 94% | 100% | 8 Gig | 2 Gig | 90 | 76 | Google Fiber |
| 84103 | The Avenues, Capitol Hill, Marmalade District, Federal Heights | 84% | 98% | 8 Gig | 2 Gig | 80 | 74 | Google Fiber |
| 84111 | Downtown, Central City, Central Ninth, East Downtown | 55% | 99% | 8 Gig | 2 Gig | 53 | 75 | Xfinity |
| 84101 | Downtown, Gateway District, Rio Grande, Central City | 29% | 98% | 8 Gig | 2 Gig | 28 | 75 | Xfinity |
| 84126 | Salt Lake City (PO Box/general) | 0% | 94% | 8 Gig | 2 Gig | 0 | 71 | Xfinity |
| 84127 | Salt Lake City (administrative/unique ZIP) | 0% | 94% | 8 Gig | 2 Gig | 0 | 71 | Xfinity |
| 84125 | Salt Lake City (PO Box/general) | 0% | 94% | 8 Gig | 2 Gig | 0 | 71 | Xfinity |
| 84112 | University of Utah | 0% | 86% | — | 2 Gig | — | 65 | Xfinity |
| 84152 | Salt Lake City (PO Box ZIP) | 89% | 100% | 8 Gig | 2 Gig | 85 | 76 | Google Fiber |
| 84165 | Salt Lake City (PO Box ZIP) | 45% | 98% | 8 Gig | 2 Gig | 43 | 74 | Xfinity |
| 84171 | Salt Lake City (PO Box ZIP) | 0% | 100% | — | 2 Gig | — | 76 | Xfinity |
| 84170 | Salt Lake City (PO Box ZIP) | 0% | 100% | — | 2 Gig | — | 76 | Xfinity |
Rank score (0–100) is each provider’s Speed Score, discounted for weak upload, times the share of that ZIP it reaches — the same rule that orders providers on the Salt Lake City city page, so it moves as availability changes street to street.
Which is better for…
The right pick comes down to what you actually do online.
Get connected
Pick your provider and check availability at your address.
- 8 Gig down · 8 Gig up Fiber
- 2 Gig down · 1 Gig up Fiber
- 2 Gig down · 300 Mbps up Cable
- 1 Gig down · 35 Mbps up Cable
See what’s actually available at your address
Coverage changes from one street to the next. Check your exact address in seconds.
Check my addressFrequently asked questions
Is Google Fiber available at my Salt Lake City address?
Google Fiber reaches about 60% of Salt Lake City overall, while Xfinity reaches about 98%. Google Fiber’s 8,000/8,000 Mbps tier also reaches about 60% of the city, so enter your exact address to confirm availability before choosing it.
Which is cheaper, Google Fiber or Xfinity, and what will I actually pay?
Xfinity starts at $40/mo, while Google Fiber starts at $70/mo. These are promotional starting rates, so confirm the post-promo rate, equipment fees, and any contract before signing; then choose the option whose full terms fit your budget.
Which is faster for gaming, working from home, and 4K streaming?
Google Fiber offers up to 8,000/8,000 Mbps, while Xfinity offers up to 2,000/300 Mbps; Google Fiber’s tier reaches about 60% of the city and Xfinity’s reaches about 89%. Google Fiber is the better performance choice where available, but check your address and expected household use before ordering.
More Salt Lake City comparisons
How Salt Lake City’s other qualifying providers stack up head-to-head.