San Marcos residents have 3 internet providers to choose from. Spectrum is the most popular provider, offering cable and fiber internet service. In our research, we have been seeing 180 Mbps for download speeds and 12 Mbps for upload speeds for Spectrum customers over 10,065 recent tests. Grande Communications and AT&T also have coverage in San Marcos, although they are not as popular as Spectrum. These providers offer cable, fiber, DSL and fixed wireless internet service.
See more detailed speed and coverage data below.
| Provider | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| Spectrum Cable Fiber | 180 Mbps | 12 Mbps | 15 ms |
| Grande Communications Cable Fiber | 259 Mbps | 49 Mbps | 14 ms |
| AT&T DSL Fiber Fixed Wireless | 83 Mbps | 75 Mbps | 13 ms |
| * Data from speed tests taken in the last 3 months | |||
Spectrum is the most popular provider in San Marcos offering cable and fiber internet service. Users have been getting 180 Mbps for download speeds and 12 Mbps for upload speeds over 10,065 recent tests.
Spectrum has the 2nd fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in San Marcos. 30% of users saw download speeds between 250-500 Mbps, and 56% of users saw upload speeds between 10-25 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 694 Mbps | 38 Mbps | 12 ms |
| March 16, 2024 | 20 Mbps | 319 Mbps | 17 ms |
| March 16, 2024 | 546 Mbps | 22 Mbps | 9 ms |
| March 16, 2024 | 91 Mbps | 10 Mbps | 13 ms |
| March 16, 2024 | 36 Mbps | 18 Mbps | 18 ms |
| March 16, 2024 | 205 Mbps | 35 Mbps | 10 ms |
| March 16, 2024 | 195 Mbps | 1 Mbps | 16 ms |
| March 16, 2024 | 181 Mbps | 12 Mbps | 14 ms |
| March 16, 2024 | 29 Mbps | 27 Mbps | 12 ms |
| March 16, 2024 | 323 Mbps | 11 Mbps | 20 ms |
Grande Communications is the 2nd most popular provider in San Marcos offering cable and fiber internet service. Users have been getting 259 Mbps for download speeds and 49 Mbps for upload speeds over 3,977 recent tests.
Grande Communications has the fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in San Marcos. 32% of users saw download speeds between 250-500 Mbps, and 29% of users saw upload speeds faster than 250 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 16, 2024 | 336 Mbps | 384 Mbps | 10 ms |
| March 16, 2024 | 330 Mbps | 31 Mbps | 16 ms |
| March 16, 2024 | 491 Mbps | 1 Mbps | 11 ms |
| March 16, 2024 | 631 Mbps | 480 Mbps | 11 ms |
| March 16, 2024 | 739 Mbps | 655 Mbps | 15 ms |
| March 16, 2024 | 301 Mbps | 44 Mbps | 22 ms |
| March 16, 2024 | 42 Mbps | 19 Mbps | 17 ms |
| March 16, 2024 | 345 Mbps | 20 Mbps | 13 ms |
| March 16, 2024 | 159 Mbps | 52 Mbps | 21 ms |
| March 15, 2024 | 154 Mbps | 20 Mbps | 18 ms |
AT&T is the 3rd most popular provider in San Marcos offering DSL, fiber and fixed wireless internet service. Users have been getting 83 Mbps for download speeds and 75 Mbps for upload speeds over 214 recent tests.
AT&T has the 3rd fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in San Marcos. 22% of users saw download speeds between 100-250 Mbps, and 25% of users saw upload speeds between 50-100 Mbps.
Download Speeds
Upload Speeds
| Date | Download Speed | Upload Speed | Latency |
|---|---|---|---|
| March 14, 2024 | 20 Mbps | 23 Mbps | 7 ms |
| March 6, 2024 | 23 Mbps | 21 Mbps | 7 ms |
| March 5, 2024 | 285 Mbps | 217 Mbps | 282 ms |
| March 3, 2024 | 1 Mbps | 1 Mbps | 130 ms |
| February 29, 2024 | 57 Mbps | 64 Mbps | 12 ms |
| February 26, 2024 | 19 Mbps | 17 Mbps | 9 ms |
| February 19, 2024 | 27 Mbps | 63 Mbps | 15 ms |
We’ll run a download test and an upload test to give you the full picture of your internet connection.