San Diego, CA vs San Francisco, CA: internet compared

By the BroadbandByZIP editorial team · Updated September 2026 · How we make money

Thinking of moving between San Diego and San Francisco? Here is how home internet compares in the two cities, based on FCC data as of December 31, 2025 and Census statistics.

San Francisco, CA leads for fiber availability (44% vs 40%). San Francisco, CA leads for gigabit-class availability (74% vs 68%).

San Diego, CASan Francisco, CA
Residents1,385,061836,321
Median household income$104,321$141,446
Can get fiber40%44%
Can get cable90%97%
Can get DSL53%23%
Can get fixed wireless82%99%+
Can get gigabit68%74%
Households with broadband95%92%

Top providers

San Diego, CASan Francisco, CA
AT&T: 85%Xfinity: 98%
T-Mobile Home Internet: 71%AT&T: 97%
Verizon: 58%Unwired: 94%
Cox: 49%Etheric Communications: 77%
Spectrum: 46%T-Mobile Home Internet: 73%

Coverage percentages are the share of residential locations where each provider reports service. Availability varies by address.

Check a specific address area

Internet in San Diego, CA · Internet in San Francisco, CA · Compare any two ZIP codes · Rankings

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