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Quantum Fiber vs Xfinity in Westminster
Westminster’s trade-off is Quantum Fiber’s superior symmetrical speed where available versus Xfinity’s lower price and much broader availability.
Xfinity is the better overall pick in Westminster because it reaches more homes and starts at $40/mo, versus $50/mo for Quantum Fiber. Xfinity reaches about 99% of the city, making it the coverage winner. Quantum Fiber wins on speed where it reaches your address, while Xfinity wins on price and broad availability. Choose Quantum Fiber for demanding uploads, gaming, or work-from-home performance if available; choose Xfinity for a simpler, less expensive option that most Westminster households can get.
At a glance
Quantum Fiber vs. Xfinity, side by side.
| Provider | Type | Top speed | City coverage | Starting price | Best for |
|---|---|---|---|---|---|
| Quantum Fiber |
Fiber | 8 Gig 8 Gig upload |
51% | $50/mo | Top fiber speeds |
| Xfinity |
Cable | 2 Gig 300 Mbps upload |
99% | $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
Coverage can change from one Westminster ZIP or neighborhood to the next, so the best choice depends on the exact address. Xfinity is generally easier to find, while Quantum Fiber can be the stronger option if it reaches your home.
| ZIP | Neighborhoods | Coverage | Top speed | Rank score | Winner | |||
|---|---|---|---|---|---|---|---|---|
| Quantum Fiber | Xfinity | Quantum Fiber | Xfinity | Quantum Fiber | Xfinity | |||
| 80031 | Legacy Ridge, The Ranch, Countryside, Northwest Commons | 37% | 100% | 8 Gig | 2 Gig | 37 | 81 | Xfinity |
| 80030 | Harris Park, Sunset Ridge, Westminster Downtown | 71% | 99% | 8 Gig | 2 Gig | 70 | 81 | Xfinity |
| 80035 | Standley Lake, Ranch Reserve, Bradburn Village | 6% | 100% | 2 Gig | 2 Gig | 6 | 81 | Xfinity |
| 80036 | Westminster (PO Box service area) | 73% | 100% | 2 Gig | 2 Gig | 72 | 81 | 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 Westminster 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
- 1 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 Quantum Fiber available at my Westminster address?
Quantum Fiber reaches about 51% of Westminster overall, while Xfinity reaches about 99%. Availability varies block to block, so check your exact address before choosing Quantum Fiber.
Which is cheaper in Westminster, Quantum Fiber or Xfinity, and what will I actually pay?
Xfinity starts at $40/mo, while Quantum Fiber starts at $50/mo. These are promotional starting rates, so confirm the post-promo rate, equipment fees, and any contract before signing.
Which is faster for gaming, working from home, and 4K streaming?
Quantum Fiber offers up to 8,000/8,000 Mbps where available, while Xfinity offers up to 2,000/300 Mbps. Quantum Fiber is faster for gaming and work-from-home uploads if it reaches your address; check availability and choose based on your household’s needs.