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Astound vs Xfinity in San Francisco
Astound and Xfinity both start at $40/mo, but Astound only covers about 30% of San Francisco while Xfinity reaches nearly the whole city.
Xfinity is the safer default in San Francisco: it reaches roughly 98% of the city, tops out at 2000/300 Mbps where available, and scores 94/100 for speed. Astound matches Xfinity’s $40/mo starting price and posts a strong 90/100 speed score, but it only covers about 30% of the city, so it’s a great pick if it actually reaches your block. Both are cable at the same intro rate. Check Astound first for value; fall back to Xfinity for near-universal availability and higher top-end speed.
At a glance
Astound vs. Xfinity, side by side.
| Provider | Type | Top speed | City coverage | Starting price | Best for |
|---|---|---|---|---|---|
| Astound |
Cable | 1 Gig 50 Mbps upload |
30% | $40/mo | Budget-friendly |
| Xfinity |
Cable | 2 Gig 300 Mbps upload |
98% | $40/mo | Fastest plans here |
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
In San Francisco this matchup often comes down to your exact address, since cable coverage varies block to block. Xfinity’s roughly 98% footprint means it’s usually available citywide, while Astound’s ~30% coverage is concentrated in certain neighborhoods. Always run an address check, because the winner can flip from one street to the next.
| ZIP | Neighborhoods | Coverage | Top speed | Speed Score | Winner | |||
|---|---|---|---|---|---|---|---|---|
| Astound | Xfinity | Astound | Xfinity | Astound | Xfinity | |||
| 94112 | Excelsior, Ingleside, Outer Mission | 53% | 100% | 1 Gig | 2 Gig | 83 | 95 | Xfinity |
| 94110 | Mission District, Bernal Heights | 72% | 100% | 1 Gig | 2 Gig | 86 | 95 | Xfinity |
| 94116 | Sunset District, Parkside, Outer Sunset | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94122 | Inner Sunset, Sunset District, Parkside | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94124 | Bayview, Hunters Point, Candlestick Point | 2% | 96% | 1 Gig | 2 Gig | 72 | 94 | Xfinity |
| 94107 | Potrero Hill, Dogpatch, Mission Bay | 44% | 91% | 1 Gig | 2 Gig | 81 | 93 | Xfinity |
| 94132 | Lake Merced, Stonestown, Parkmerced, SFSU area | 27% | 100% | 1 Gig | 2 Gig | 77 | 95 | Xfinity |
| 94127 | St. Francis Wood, West Portal, Forest Hill, Sherwood Forest | 7% | 100% | 1 Gig | 2 Gig | 73 | 95 | Xfinity |
| 94131 | Twin Peaks, Glen Park, Diamond Heights, Noe Valley | 41% | 100% | 1 Gig | 2 Gig | 80 | 95 | Xfinity |
| 94115 | Pacific Heights, Japantown, Western Addition, Lower Pacific Heights | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94114 | The Castro, Noe Valley, Eureka Valley | 84% | 100% | 1 Gig | 2 Gig | 89 | 95 | Xfinity |
| 94118 | Inner Richmond, Laurel Heights, Presidio Heights | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94103 | SoMa, South of Market, Mission Bay (north) | 47% | 93% | 1 Gig | 2 Gig | 81 | 94 | Xfinity |
| 94134 | Visitacion Valley, Portola, Sunnydale | 61% | 99% | 1 Gig | 2 Gig | 84 | 95 | Xfinity |
| 94117 | Haight-Ashbury, Cole Valley, Buena Vista | 6% | 100% | 1 Gig | 2 Gig | 73 | 95 | Xfinity |
| 94109 | Nob Hill, Russian Hill, Polk Gulch, Van Ness | 24% | 99% | 1 Gig | 2 Gig | 77 | 95 | Xfinity |
| 94123 | Marina District, Cow Hollow, Presidio | 2% | 99% | 1 Gig | 2 Gig | 72 | 95 | Xfinity |
| 94102 | Civic Center, Hayes Valley, Tenderloin | 14% | 95% | 1 Gig | 2 Gig | 75 | 94 | Xfinity |
| 94133 | North Beach, Telegraph Hill, Fisherman’s Wharf, Russian Hill | 12% | 97% | 1 Gig | 2 Gig | 74 | 95 | Xfinity |
| 94121 | Outer Richmond, Sea Cliff, Lands End | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94111 | Financial District, Embarcadero, Jackson Square | 17% | 81% | 1 Gig | 2 Gig | 75 | 91 | Xfinity |
| 94108 | Chinatown, Nob Hill, Union Square | 41% | 96% | 1 Gig | 2 Gig | 80 | 94 | Xfinity |
| 94129 | The Presidio, Presidio National Park | 0% | 100% | — | 2 Gig | — | 95 | Xfinity |
| 94105 | Financial District (south), Rincon Hill, Embarcadero | 46% | 87% | 1 Gig | 2 Gig | 81 | 93 | Xfinity |
| 94158 | Mission Bay, Dogpatch | 3% | 88% | 1 Gig | 2 Gig | 73 | 93 | Xfinity |
| 94130 | Treasure Island, Yerba Buena Island | 0% | 90% | — | 2 Gig | — | 93 | Xfinity |
| 94188 | Bayview, Silver Terrace | 6% | 88% | 1 Gig | 2 Gig | 73 | 93 | Xfinity |
| 94104 | Financial District, Union Square (edge) | 32% | 91% | 1 Gig | 2 Gig | 78 | 93 | Xfinity |
| 94141 | Mission District, Castro | 44% | 91% | 1 Gig | 2 Gig | 81 | 93 | Xfinity |
Speed Score (0–100) blends each provider’s coverage and top speed in that specific ZIP, 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.
- 1 Gig down · 1 Gig up Fiber
- 1 Gig down · 50 Mbps up Cable
- 1 Gig down · 10 Mbps up Copper
- 2 Gig down · 300 Mbps up Cable
- 2 Gig down · 300 Mbps up Fiber
- 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 Astound or Xfinity available at my address in San Francisco?
Xfinity covers about 98% of San Francisco, while Astound reaches only around 30%, so Xfinity is far more likely to serve your address. Run an address check for both before choosing, since Astound availability depends heavily on your specific block.
Which is cheaper in San Francisco, Astound or Xfinity?
Both start at $40/mo in San Francisco, so neither is cheaper on the advertised rate. These are promotional starting prices, so before signing confirm the post-promo rate, any equipment fees, and whether a contract is required for each provider.
Which is faster and is it enough for gaming and working from home?
Xfinity is faster with a 94/100 speed score versus Astound’s 90/100, and up to 2000/300 Mbps versus 1500/50 Mbps where available. Xfinity’s higher upload is the bigger advantage for video calls and gaming, so pick it if upstream matters and it reaches your address.