Getting Home Internet in Boulder, CO

calendar Apr 9, 2026 / · 2 min read · Home Internet Boulder Xfinity T-Mobile ISP  ·
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Setting up home internet in Boulder is straightforward — the city is well-served by a few major providers. Here's what you need to know before you sign up.

Who Provides Home Internet in Boulder?

Xfinity (Comcast) is the dominant cable internet provider in Boulder, covering most of the city with DOCSIS cable service.

T-Mobile Home Internet covers most of Boulder using its 5G/LTE wireless network. Available to anyone in a T-Mobile coverage area — no installation appointment needed.

CenturyLink/Lumen offers DSL service in some parts of Boulder, though speeds are significantly lower than cable or 5G wireless.

Starlink is an option for rural and foothill areas west of town where cable doesn't reach.

Which Should You Choose?

ProviderBest forSpeedPrice
XfinityMost households, gamers, power usersUp to 1,200 Mbps$35–$80/mo
T-MobileRenters, light users, Xfinity alternatives100–300 Mbps~$50–60/mo
CenturyLinkAreas without cable10–100 Mbps$50–70/mo
StarlinkFoothills, rural100–300 Mbps$120/mo

Xfinity in Boulder

Xfinity offers the fastest and most consistent speeds in Boulder. Most residential areas of the city have access to at least 200 Mbps plans.

Things to watch:

  • Introductory rates expire after 12–24 months
  • Data caps apply on some plans (1.2TB/month)
  • Equipment rental fee (~$15/mo) unless you own a compatible modem

Full Xfinity Boulder guide

T-Mobile Home Internet in Boulder

T-Mobile Home Internet is a strong alternative for renters or anyone who wants to avoid Xfinity. Self-install, no contract, no data caps, and a flat predictable price.

Things to watch:

  • Speeds vary more than cable — can dip during peak evening hours
  • Check coverage at your address before ordering

Full T-Mobile Home Internet Boulder guide

Tips for New Boulder Residents

  1. Check your address — Xfinity coverage isn't universal; check availability at your address before assuming you can get it
  2. Ask your landlord — some Boulder apartment buildings have bulk internet deals that include WiFi
  3. Don't rent equipment if you can avoid it — buying a compatible modem for Xfinity pays for itself in 6–12 months
  4. Consider bundling — T-Mobile Home Internet discounts apply if you also have T-Mobile wireless

Compare Plans

See all Boulder home internet options on our home internet comparison page.

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