Xfinity internet in California
Xfinity ranks #5 among California home internet providers by homes covered. It reaches 34% of homes in California cities and towns, including San Francisco, San Jose, Sacramento and Fresno. Of the homes it reaches, 41% can also get fiber from another provider.
Which California cities have Xfinity?
The 14 largest places Xfinity serves in California, with the share of homes it covers and the share that can get fiber from any provider.
What else can you get in Xfinity's California towns?
Share of homes in Xfinity-served places that each provider also reaches.
Places where Xfinity covers at least half of homes. AT&T combines AT&T Fiber and Internet Air (5G home internet); Verizon in California is 5G Home only (no Fios).
Compare: AT&T Internet Air vs. Xfinity · AT&T Fiber vs. Xfinity
Common questions
Is Xfinity available at my California address?
Xfinity covers 34% of homes in California cities and towns, and at least 90% of homes in 396 of them. Coverage is set street by street, so check your exact address before you order.
Can I get fiber instead of Xfinity in California?
About 41% of homes in Xfinity's California area can also get fiber from another provider. Among the larger cities it serves, Berkeley, Oakland and Elk Grove have the highest fiber coverage.
How much does Xfinity cost in California?
Xfinity's advertised plans start at $45/mo for new customers. Offers and fees can vary by address, so check yours before you order.
Xfinity in 29 other states
More for California
Sources (2)
- FCC Broadband Data Collection, fixed availability as of Dec 31, 2025 (published Aug 18, 2026). Home counts are FCC broadband serviceable locations in 1,573 California census places.
- Xfinity plan pages, xfinity.com/learn/internet-service, checked Oct 2026
Coverage is reported by providers to the FCC and can differ at a single address. How we research