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Best Internet providers in San Marcos, CA
What are the best internet providers in San Marcos?
The top 10 best San Marcos internet providers of September 2025 are: Cox Communication and Spectrum.
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Top rated internet providers for San Marcos, CA are:
- Cox Communication - Best Value
- Spectrum - Best for price
- HughesNet - Best satellite internet provider
Compare Best Home Internet Providers in San Marcos, CA
#1 Cox Communication Internet in San Marcos, CA
Cox Communication best internet plans for San Marcos, CA
Cox Internet Starter
$29.99/mo. for 12 mos.
- Ideal for up to 3 devices and Internet users
- Up to 10 Mbps download speed
- Up to 1 Mbps upload speed
- Free access to 500,000+ WiFi hotspots
Cox Internet Essential 50
$39.99/mo. for 12 mos.
- Ideal for 3 to 5 devices that occasionally receive emails and light Internet users.
- Up to 50 Mbps download speed
- Up to 3 Mbps upload speed
- Free access to 500,000+ WiFi hotspots
Cox Internet Preferred 150
$59.99/mo. for 12 mos.
- Ideal for 5 to 7 devices and power users/gamers
- Up to 150 Mbps download speed
- Up to 10 Mbps upload speed
- Free access to 500,000+ WiFi hotspots
Cox Internet Ultimate
$79.99/mo. for 12 mos.
- Ideal for 7 to 9 connected devices and advanced users
- Up to 500 Mbps download speed
- Up to 500 Mbps upload speed
- Free access to 500,000+ WiFi hotspots
#2 Spectrum Internet in San Marcos, CA
Spectrum best internet plans for San Marcos, CA
Internet
$49.99/mo. for 12 months
- Speeds starting at 200 Mbps
- Free Internet modem
- No data caps
Internet Ultra
$64.99/mo. for 24 months
- Speeds starting at 400 Mbps
- Free Internet modem
- No data caps
Internet Gig
$104.99/mo. for 12 months
- Get speeds up to 940 Mbps
- Free antivirus with Security Suite
- Free Internet modem
- No data caps
#3 DSL Extreme Internet in San Marcos, CA
DSL Extreme best internet plans for San Marcos, CA
1 Mbps Internet
$14.95/mo. for 12 mos.
- Up to 1 Mbps download speed
- Up to 384 Kbps upload speed
- Available in select Verizon areas
1.5 Mbps Internet
$24.95/mo. for 12 mos.
- Up to 1.5 Mbps download speed
- Up to 384 Kbps upload speed
- Available in select Verizon areas
3 Mbps Internet
$24.95/mo. for 12 mos.
- Up to 3 Mbps download speed
- Up to 768 Kbps upload speed
- Available in select Verizon areas
45 Mbps Internet
$47/mo. for 12 mos.
- Up to 45 Mbps download speed
- Up to 6 Mbps upload speed
- FREE Professional Installation
Summary of best San Marcos internet providers
| Provider | Availibility | Download | Upload |
|---|---|---|---|
| AT&T DSL | 99.5% | 50 Mbps | 10 Mbps |
| Cox Communications Cable | 98% | 300 Mbps | 30 Mbps |
| Spectrum Cable | 85% | 400 Mbps | 20 Mbps |
| Cox Communications Fiber | 15% | 1000 Mbps | 1000 Mbps |
| San Diego Broadband Fixed Wireless | 10.5% | 30 Mbps | 10 Mbps |
| AT&T Fiber | 9% | 1000 Mbps | 1000 Mbps |
Source data: broadbandmap.fcc.gov