Find the Best Internet Providers in Petaluma CA
Compare fiber cable and 5G home internet from every provider available in Petaluma. See real pricing speeds and availability at your exact address from Downtown Petaluma to the residential blocks throughout this Sonoma County city — Sonic's home territory.
Serving Petaluma zip codes 94952 and 94954.
4
Providers Available
4
Neighborhoods Covered
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Zip Codes
$30/mo
Starting Price/mo
Internet Providers Available in Petaluma CA
| Provider | Price | Speed | Type | Data Cap | Contract | Best For | |
|---|---|---|---|---|---|---|---|
| Xfinity | $30/mo | 2 Gbps | Cable | 1.2 TB | None | Approximately 93% Petaluma cable coverage | View Plans |
| AT&T Fiber | $55/mo | 5 Gbps | Fiber | None | None | Petaluma fiber coverage with symmetric speeds | View Plans |
| Sonic | $49.99/mo | 8 Gbps | Fiber | None | None | Approximately 26% Petaluma fiber — Sonic's home territory | View Plans |
| EarthLink | $39.95/mo | 5 Gbps | Fiber | None | 12 months | Privacy-focused fiber on AT&T infrastructure | View Plans |
Provider availability on this page is verified against the FCC National Broadband Map (June 2025 data). Coverage is provider-reported and updated periodically.
Best Internet Providers in Petaluma CA
Xfinity
Xfinity has approximately 93 percent cable coverage in Petaluma. Plans start at $30/mo for 75 Mbps and go up to 2 Gbps with a 1.2 TB monthly data cap. Petaluma is a Sonoma County city of approximately 60000 residents — anchored by Downtown Petaluma's substantial historic commercial district characteristic chicken-farming and dairy industry heritage (Petaluma was historically known as the 'World's Egg Basket') notable creative-industry workforce (substantial film and TV production has occurred in Petaluma's preserved historic downtown) and characteristic Sonoma County wine-country adjacency. Many Petaluma households qualify for Xfinity Internet Essentials at $9.95/mo. Call (888) 224-5870 for current pricing.
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AT&T Fiber
AT&T Fiber has fiber coverage in parts of Petaluma — service is available in the southern part of the city and northern coverage extends to Penngrove with central coverage limited. Plans start at $55/mo for 300 Mbps and go up to 5 Gbps with symmetric upload and download speeds. For Petaluma households where Sonic is available it is typically the better fiber choice — Sonic is locally-favored. Where Sonic is not available AT&T Fiber is the practical fiber alternative. Call (888) 224-5870 to check AT&T Fiber at your Petaluma address.
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Sonic
Sonic is Petaluma's locally-favored internet provider — and Petaluma is genuinely Sonic's home territory. Sonic is headquartered in Santa Rosa just up the road from Petaluma. Approximately 26 percent of Petaluma has Sonic fiber availability with strongest coverage in western and eastern edges plus much of northern Petaluma — coverage is more limited in the central neighborhoods. Plans start at $49.99/mo for 1 Gbps and go up to 8 Gbps with symmetric upload and download speeds no data caps no contracts. Sonic is a genuine local Northern California company with substantially better-rated customer service than national providers. For Petaluma households where Sonic is available it is typically the best choice. Call (888) 224-5870 to check Sonic at your Petaluma address.
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EarthLink
EarthLink offers fiber service in Petaluma over AT&T's fiber, paired with EarthLink's separate billing, customer service, and a privacy policy that doesn't monetize your browsing data. Expect $39.95/mo for 300 Mbps up to 5 Gbps, symmetric, usually with a 12-month price lock. Availability matches AT&T's fiber footprint, so it comes down to your specific address. Call (888) 224-5870 to compare EarthLink and AT&T at your Petaluma address.
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Petaluma Neighborhoods We Cover
Internet Service by Petaluma Neighborhood
Downtown Petaluma
East Petaluma
West Petaluma
North Petaluma
Internet in Petaluma — What You Need to Know
Petaluma Is Sonic Home Territory
Petaluma is genuinely Sonic's home territory — Sonic is headquartered in Santa Rosa just up the road from Petaluma in Sonoma County. Approximately 26 percent of Petaluma has Sonic fiber availability with strongest coverage in western and eastern edges plus much of northern Petaluma. This is meaningfully different from most California cities where Sonic coverage is limited or non-existent. For Petaluma households where Sonic is available it is typically the best choice — symmetric speeds up to 8 Gbps no data caps no contracts at $49.99/mo for 1 Gbps. Sonic's customer service is also substantially better-rated than national providers. Call (888) 224-5870 to check Sonic at your Petaluma address.
Petaluma Is NOT a Spectrum Market
For Petaluma households researching internet: Spectrum does not operate in Petaluma. The cable provider is Xfinity (Comcast). The fiber providers are Sonic and AT&T Fiber (with EarthLink riding AT&T infrastructure). For Petaluma households the practical wired internet decisions are Sonic vs Xfinity cable — with AT&T Fiber as an alternative where Sonic is not available. Call (888) 224-5870 to check what reaches your specific Petaluma address.
SMART Train Commuter and Wine Country Adjacency Households
Petaluma has substantial commuter household population — the SMART train provides direct passenger rail service from Petaluma to San Rafael Novato and north to Santa Rosa and Cotati. Many Petaluma residents commute to SF (via the Larkspur ferry connection) and Marin/Sonoma jobs and increasingly work from home on hybrid schedules. For commuters working from home fiber's symmetric upload speeds matter — Sonic at $49.99/mo or AT&T Fiber at $55/mo where available are meaningfully better than Xfinity cable's 35 Mbps upload cap. Petaluma also has substantial wine country adjacency — many Sonoma County wineries and vineyard properties are short drives from Petaluma. Call (888) 224-5870 for a commuter setup.
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Internet Providers by Location
Novato
CA
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Cotati
CA
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Rohnert Park
CA
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Sonoma
CA
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Santa Rosa
CA
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Sebastopol
CA
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Penngrove
CA
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Bodega Bay
CA
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Bloomfield
CA
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Nicasio
CA
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Frequently Asked Questions About Internet in Petaluma CA
For most Petaluma households Sonic at $49.99/mo for 1 Gbps with symmetric speeds is the best choice where available — Petaluma is genuinely Sonic's home territory with approximately 26 percent coverage. Xfinity at $30/mo with 93 percent cable coverage is the broadly available alternative — but watch the 1.2 TB monthly data cap. AT&T Fiber at $55/mo is available in parts of Petaluma. EarthLink fiber at $39.95/mo offers stronger privacy protections. Many Petaluma households qualify for Xfinity Internet Essentials at $9.95/mo. Call (888) 224-5870 to check all options at your Petaluma address.
Sonic is headquartered in Santa Rosa just up the road from Petaluma in Sonoma County — Petaluma is genuinely Sonic's home territory. Approximately 26 percent of Petaluma has Sonic fiber availability with strongest coverage in western and eastern edges plus much of northern Petaluma. Sonic offers symmetric speeds up to 8 Gbps with no data caps no contracts at $49.99/mo for 1 Gbps. Where available it is typically the best choice. Call (888) 224-5870 to check at your Petaluma address.
No — Spectrum does not operate in Petaluma. The cable provider is Xfinity (Comcast). The fiber providers are Sonic and AT&T Fiber. Call (888) 224-5870 for Petaluma-specific recommendations.
For Petaluma households where Sonic is available it is usually the better choice — Sonic is locally headquartered (Santa Rosa) symmetric speeds up to 8 Gbps cheaper entry pricing ($49.99/mo vs $55/mo) and substantially better-rated customer service. Where Sonic is not available AT&T Fiber at $55/mo is the practical fiber alternative. Call (888) 224-5870 to compare at your address.
Sonic has approximately 26 percent fiber coverage in Petaluma — strongest in western and eastern edges plus much of northern Petaluma. Coverage is more limited in the central neighborhoods. Sonic is in active fiber buildout — coverage is expanding regularly. Where available Sonic at $49.99/mo for 1 Gbps with symmetric speeds and no data caps is locally-favored. Call (888) 224-5870 to check at your specific Petaluma address.
Yes — Xfinity imposes a 1.2 TB monthly data cap on standard plans in Petaluma. An unlimited data option is available for an additional monthly fee (typically $30/mo). For heavy-use households Sonic or AT&T Fiber where available are meaningfully better because neither has data caps. Call (888) 224-5870 to compare all-in pricing.
Many Petaluma households qualify. Eligibility includes households with K-12 students receiving free or reduced-price lunch SNAP recipients Medicaid recipients SSI for those 65 and older Veterans Pension Benefit and several other federal assistance programs. Petaluma City Schools and Old Adobe Union School District participate in CEP at certain schools. The program offers 75 Mbps at $9.95/mo. Call (888) 224-5870 for the eligibility check.
Call us at (888) 224-5870. We confirm the new provider is available at your specific Petaluma address (which matters since Sonic AT&T Fiber and Xfinity each serve different parts of the city) schedule the installation and make sure your current service stays active until the new connection is up and tested. Most Petaluma switches complete within 1 to 5 business days. Never cancel your current internet before the new one is confirmed working.
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