In Castroville there is 1 residential Cable provider covering 99.03% of the city. The average home can get speeds up to 1,000 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Cable internet providers in Castroville, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Castroville, CA please click below.
Castroville, CA Availability Maps
Cable Internet Service Provider in Castroville
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Castroville are not shown.
Castroville Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Castroville is cable internet available?
Cable Internet Availability Key
Cable is available in 99.03% of Castroville. Areas in green have cable internet service, where areas in yellow or red may not. The most widely available provider is Spectrum. Call one of the companies with service in Castroville above to see who has service at your home.
How fast is cable internet in Castroville?
The map below shows maximum cable internet speeds by area in Castroville.
Cable Internet Speed Key
The average Castroville home can get up to 1,000 Mbps on their cable internet plan. The fastest cable download speed in the city is 1,000 Mbps, which 99.03% of residents can get.
Is cable the fastest internet I can get in Castroville?
The fastest internet for you may vary based on where in Castroville you live. In general, fixed wireless competes most often with cable in the city.
- Fiber is the fastest internet type for less than 1% of Castroville homes.
- Cable is fastest for 83.43% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 16.45%.
- Satellite internet may be the only option for less than 1% of Castroville homes.
Cable Providers in Depth
Below you'll find which TV and internet providers offer service in Castroville, along with details on where in Castroville and at what speeds.
Spectrum Cable in Castroville, CA
Spectrum cable coverage
About 99.03%, or 8,815 people, have Spectrum cable internet available to them in the city. The company covers the northwest, northeast, southeast, central, east, north, west, and south Castroville area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castroville.
Spectrum cable download speeds
Spectrum is one of the fastest when comparing download speeds to all other internet providers in Castroville. Versus other cable providers in the area, Spectrum cable is the fastest. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from Spectrum goes up to 1,000 Mbps, and all Castroville customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum cable upload speeds
In Castroville download speeds tend to be faster than than upload speeds for Spectrum cable. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the fastest compared to other Castroville cable providers. Spectrum offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Castroville Cable by Area
This information is most helpful to those looking for homes or considering moving to Castroville or any of the areas nearby.
How does cable internet in Castroville compare to the rest of California?
Cable internet speeds in Castroville are much faster versus the average speeds in California: 0.00 Mbps in California versus 1,000 Mbps in the city. The state has similar cable availability compared to the city. Average cable coverage in California is 0.00% versus 99.03% in Castroville.
What zip codes have cable internet?
Cable internet coverage varies by zip code and neighborhood. Some examples in or around Castroville are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does cable internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- Moss Landing, CA: less cable coverage, faster speeds
- Elkhorn, CA: less cable coverage, similar speeds
- Prunedale, CA: less cable coverage, faster speeds
- Marina, CA: less cable coverage, faster speeds
- Salinas, CA: less cable coverage, faster speeds
- East Garrison, CA: less cable coverage, faster speeds
- Aromas, CA: less cable coverage, faster speeds
- Seaside, CA: less cable coverage, faster speeds
- Sand City, CA: more cable coverage, faster speeds
- San Juan Bautista, CA: less cable coverage, similar speeds
Cities with Similar Populations
- Blacksburg, SC: less cable coverage, similar speeds
- Castle Rock, WA: less cable coverage, faster speeds
- Stuttgart, AR: less cable coverage, slower speeds
- Sorrento, FL: less cable coverage, faster speeds
- Whitney, TX: less cable coverage, faster speeds
- Buchanan, MI: less cable coverage, faster speeds
- Proctorville, OH: less cable coverage, slower speeds
- Prospect, CT: more cable coverage, faster speeds
- Winnsboro, SC: less cable coverage, slower speeds
- Blackstone, MA: more cable coverage, faster speeds