In Castroville there are 10 residential internet providers covering 99.50% of the city. The average home can get speeds up to 1,895 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.
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10 Internet Service Providers 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
Availability maps for all providers in Castroville
Using the dropdown below, please select a provider. Green indicates nearly all homes have service, red indicates few homes have service, and blank indicates no service.
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Internet service is available in 99.50% of Castroville. Using our interactive availability map, you can compare service areas for different providers, we include fiber, cable, DSL, or fixed wireless internet service for all providers who offer it. You will notice that some providers might be listed multiple times for each service. If you find no providers cover the location you're looking at, you can opt for satellite service. The most widely available provider is AT&T. Now you can call companies in Castroville with more confidence that they might be available.
How fast are internet speeds in Castroville?
The map below shows maximum internet speeds by area in Castroville.
Internet Speed Key
The average Castroville home can get up to 1,895 Mbps on their internet plan. For most people, the fastest download speed in the city is 5,000 Mbps, which 23.44% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 7.80% of homes can only purchase plans up to 400 Mbps. See the internet provider details below for info about their speed and coverage in Castroville.
Internet speeds tend to be faster in the northeast parts of Castroville, and slower in the northwest areas of the city.
What type of internet should I choose in Castroville?
The fastest internet for you may vary based on where in Castroville you live. If speed is your main concern, fiber will be the fastest internet in the city.
- Fiber is the fastest internet type for 89.02% of Castroville homes.
- Cable is fastest for 2.68% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 7.80%.
- Satellite internet may be the only option for less than 1% of Castroville homes.
Internet Market Health in Castroville
Internet Competition Key
The map shows how competitive the Castroville internet service market is. Areas in green have more alternatives, areas in yellow have a few choices, and areas in red may have only one provider. More competition usually means faster speeds and better prices for you, the customer.
Below are quick facts on internet competition and market health in Castroville based on what connections the average home has availabile:
- Average number of internet service providers to a home: 6.9 (very healthy)
- Average types of service (fiber, cable, DSL, etc): 3.4 (very healthy)
- Average providers with broadband (25 Mbps+) speeds: 5.7 (very healthy)
Overall, competition is very healthy.
Castroville internet customers have the ability to buy internet service from 1 to 11 different providers, depending on where they live. For different types of service, Castroville homes have between 1 and 4 options. The type(s) of service available are fixed wireless, fiber, cable, and dsl, though these may vary depending on the region within the city.
When it comes to broadband download speeds faster than 25 Mbps, the situation is worse. Castroville internet customers who want faster speeds have between 1 and 10 choices of companies offering speeds up to or over 25 Mbps.
More internet companies with faster speeds means fewer monopolies and better prices for customers. In promoting a free market for internet, Castroville is doing quite well.
TV & Internet 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, TX
Spectrum cable coverage
About 87.09%, or 7,177 people, have Spectrum cable internet available to them in the city. The company covers the entire 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 average 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
Rise Broadband Fiber in Castroville, TX
Rise Broadband fiber coverage
About 77.31%, or 6,371 people, have Rise Broadband fiber internet available to them in the city. The company covers the entire Castroville area. Rise Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in much of Castroville.
Rise Broadband fiber download speeds
Rise Broadband is average when comparing download speeds to all other internet providers in Castroville. Versus other fiber providers in the area, Rise Broadband fiber is one of the slowest. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from Rise Broadband 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
Rise Broadband fiber upload speeds
In Castroville download speeds tend to be faster than than upload speeds for Rise Broadband fiber. Compared to other ISPs, Rise Broadband is below average where upload speeds are concerned, and below average compared to other Castroville fiber providers. Rise Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 200 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 200.0 Mbps
AT&T DSL in Castroville, TX
AT&T DSL coverage
About 60.42%, or 4,979 people, have AT&T DSL internet available to them in the city. The company covers the entire Castroville area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castroville.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Castroville. Versus other DSL providers in the area, AT&T DSL is one of the fastest. There are 2 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from AT&T goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castroville customers is up to 11 Mbps.
Show all download speeds
- 4.8% up to 25.0 Mbps
- 95.2% up to 10.0 Mbps
AT&T DSL upload speeds
In Castroville download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Castroville DSL providers. AT&T offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 1.2 Mbps.
Show all upload speeds
- 4.8% up to 5.0 Mbps
- 95.2% up to 1.0 Mbps
EarthLink DSL in Castroville, TX
EarthLink DSL coverage
About 60.42%, or 4,979 people, have EarthLink DSL internet available to them in the city. The company covers the entire Castroville area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castroville.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Castroville. Versus other DSL providers in the area, EarthLink DSL is one of the fastest. There are 2 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from EarthLink goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castroville customers is up to 11 Mbps.
Show all download speeds
- 4.8% up to 25.0 Mbps
- 95.2% up to 10.0 Mbps
EarthLink DSL upload speeds
In Castroville download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is one of the slowest where upload speeds are concerned, and one of the fastest compared to other Castroville DSL providers. EarthLink offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 1.2 Mbps.
Show all upload speeds
- 4.8% up to 5.0 Mbps
- 95.2% up to 1.0 Mbps
EarthLink Fiber in Castroville, TX
EarthLink fiber coverage
About 23.44%, or 1,932 people, have EarthLink fiber internet available to them in the city. The company covers the northeast, southeast, east, northwest, and west Castroville area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Castroville.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Castroville. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from EarthLink goes up to 5,000 Mbps, and all Castroville customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
EarthLink fiber upload speeds
In Castroville download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Castroville fiber providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
AT&T Fiber in Castroville, TX
AT&T fiber coverage
About 23.44%, or 1,932 people, have AT&T fiber internet available to them in the city. The company covers the northeast, southeast, east, northwest, and west Castroville area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Castroville.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Castroville. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from AT&T goes up to 5,000 Mbps, and all Castroville customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
AT&T fiber upload speeds
In Castroville download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Castroville fiber providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Spectrum Fiber in Castroville, TX
Spectrum fiber coverage
About 18.10%, or 1,492 people, have Spectrum fiber internet available to them in the city. The company covers the northeast, northwest, southwest, and southeast Castroville area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Castroville.
Spectrum fiber download speeds
Spectrum is average when comparing download speeds to all other internet providers in Castroville. Versus other fiber providers in the area, Spectrum fiber is one of the slowest. 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 fiber upload speeds
In Castroville download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is below average where upload speeds are concerned, and the slowest compared to other Castroville fiber providers. Spectrum offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 136 Mbps.
Show all upload speeds
- 21.7% up to 500.0 Mbps
- 78.3% up to 35.0 Mbps
VTX1 Companies Fixed Wireless in Castroville, TX
VTX1 Companies fixed wireless coverage
About 99.50%, or 8,200 people, have VTX1 Companies fixed wireless internet available to them in the city. The company covers the entire Castroville area. VTX1 Companies is a large internet service provider internet service providers in the US, with internet service available in most of Castroville.
VTX1 Companies fixed wireless download speeds
VTX1 Companies is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, VTX1 Companies fixed wireless is the fastest. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from VTX1 Companies goes up to 400 Mbps, and all Castroville customers can get this speed.
Show all download speeds
- 100.0% up to 400.0 Mbps
VTX1 Companies fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for VTX1 Companies fixed wireless. Compared to other ISPs, VTX1 Companies is below average where upload speeds are concerned, and the fastest compared to other Castroville fixed wireless providers. VTX1 Companies offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 50 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 50.0 Mbps
T-Mobile Home Internet Fixed Wireless in Castroville, TX
T-Mobile Home Internet fixed wireless coverage
About 93.20%, or 7,681 people, have T-Mobile Home Internet fixed wireless internet available to them in the city. The company covers the entire Castroville area. T-Mobile Home Internet is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castroville.
T-Mobile Home Internet fixed wireless download speeds
T-Mobile Home Internet is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, T-Mobile Home Internet fixed wireless is the slowest. There are 2 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from T-Mobile Home Internet goes up to 100 Mbps, the slowest package only goes up to 25 Mbps, and the city-wide average maximum speed for Castroville customers is up to 29 Mbps.
Show all download speeds
- 5.0% up to 100.0 Mbps
- 95.0% up to 25.0 Mbps
T-Mobile Home Internet fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for T-Mobile Home Internet fixed wireless. Compared to other ISPs, T-Mobile Home Internet is below average where upload speeds are concerned, and the slowest compared to other Castroville fixed wireless providers. T-Mobile Home Internet offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 20 Mbps. Some customers have slower plan choices, which only go up to 3.0 Mbps. On average, T-Mobile Home Internet customers can get speeds up to 3.9 Mbps.
Show all upload speeds
- 5.0% up to 20.0 Mbps
- 95.0% up to 3.0 Mbps
Verizon Fixed Wireless in Castroville, TX
Verizon fixed wireless coverage
About 89.86%, or 7,405 people, have Verizon fixed wireless internet available to them in the city. The company covers the entire Castroville area. Verizon is one of the largest internet service providers internet service providers in the US, with internet service available in most of Castroville.
Verizon fixed wireless download speeds
Verizon is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, Verizon fixed wireless is above average. There are no different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from Verizon goes up to 300 Mbps, and all Castroville customers can get this speed.
Show all download speeds
- 100.0% up to 300.0 Mbps
Verizon fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for Verizon fixed wireless. Compared to other ISPs, Verizon is below average where upload speeds are concerned, and average compared to other Castroville fixed wireless providers. Verizon offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Castroville is up to 20 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 20.0 Mbps
EarthLink Fixed Wireless in Castroville, TX
EarthLink fixed wireless coverage
About 23.03%, or 1,898 people, have EarthLink fixed wireless internet available to them in the city. The company covers the northwest, northeast, west, southeast, southwest, north, and east Castroville area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Castroville.
EarthLink fixed wireless download speeds
EarthLink is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, EarthLink fixed wireless is below average. There are 3 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from EarthLink goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castroville customers is up to 59 Mbps.
Show all download speeds
- 48.4% up to 100.0 Mbps
- 39.0% up to 25.0 Mbps
- 12.6% up to 10.0 Mbps
EarthLink fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for EarthLink fixed wireless. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and below average compared to other Castroville fixed wireless providers. EarthLink offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 11 Mbps.
Show all upload speeds
- 48.4% up to 20.0 Mbps
- 39.0% up to 3.0 Mbps
- 12.6% up to 1.0 Mbps
AT&T Fixed Wireless in Castroville, TX
AT&T fixed wireless coverage
About 23.03%, or 1,898 people, have AT&T fixed wireless internet available to them in the city. The company covers the northwest, northeast, west, southeast, southwest, north, and east Castroville area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Castroville.
AT&T fixed wireless download speeds
AT&T is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, AT&T fixed wireless is below average. There are 3 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from AT&T goes up to 100 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Castroville customers is up to 59 Mbps.
Show all download speeds
- 48.4% up to 100.0 Mbps
- 39.0% up to 25.0 Mbps
- 12.6% up to 10.0 Mbps
AT&T fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for AT&T fixed wireless. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and below average compared to other Castroville fixed wireless providers. AT&T offers 3 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 20 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 11 Mbps.
Show all upload speeds
- 48.4% up to 20.0 Mbps
- 39.0% up to 3.0 Mbps
- 12.6% up to 1.0 Mbps
rNetworks Fixed Wireless in Castroville, TX
rNetworks fixed wireless coverage
About 4.81%, or 396 people, have rNetworks fixed wireless internet available to them in the city. The company covers the northwest and southwest Castroville area. rNetworks is an average-sized internet service provider internet service providers in the US, with internet service available in a very small piece of Castroville.
rNetworks fixed wireless download speeds
rNetworks is below average when comparing download speeds to all other internet providers in Castroville. Versus other fixed wireless providers in the area, rNetworks fixed wireless is below average. There are 2 different maximum speeds throughout Castroville. The fastest plan anyone in Castroville can order from rNetworks goes up to 200 Mbps, the slowest package only goes up to 50 Mbps, and the city-wide average maximum speed for Castroville customers is up to 55 Mbps.
Show all download speeds
- 3.3% up to 200.0 Mbps
- 96.7% up to 50.0 Mbps
rNetworks fixed wireless upload speeds
In Castroville download speeds tend to be faster than than upload speeds for rNetworks fixed wireless. Compared to other ISPs, rNetworks is below average where upload speeds are concerned, and above average compared to other Castroville fixed wireless providers. rNetworks offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castroville is up to 200 Mbps. Some customers have slower plan choices, which only go up to 15 Mbps. On average, rNetworks customers can get speeds up to 21 Mbps.
Show all upload speeds
- 3.3% up to 200.0 Mbps
- 96.7% up to 15.0 Mbps
Castroville Internet 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 internet in Castroville compare to the rest of Texas?
Internet speeds in Castroville are slower versus the average speeds in Texas: 3,946 Mbps in Texas versus 1,895 Mbps in the city. The state has similar internet availability compared to the city. Average internet coverage in Texas is 98.82% versus 99.50% in Castroville.
What zip codes have widespread internet?
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 internet service 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
- Lacoste, TX: less internet coverage, slower speeds
- Pearson, TX: less internet coverage, slower speeds
- Macdona, TX: less internet coverage, faster speeds
- Rio Medina, TX: less internet coverage, faster speeds
- Quihi, TX: more internet coverage, slower speeds
- Atascosa, TX: less internet coverage, slower speeds
- Lytle, TX: more internet coverage, slower speeds
- New Fountain, TX: less internet coverage, slower speeds
- Valley-Hi, TX: less internet coverage, slower speeds
- Hondo, TX: less internet coverage, slower speeds
Cities with Similar Populations
- Alliance, NE: more internet coverage, slower speeds
- Bayport, NY: more internet coverage, faster speeds
- Stafford Springs, CT: more internet coverage, faster speeds
- Becker, MN: more internet coverage, faster speeds
- Alva, FL: more internet coverage, faster speeds
- Altoona, WI: more internet coverage, faster speeds
- Wise, VA: more internet coverage, slower speeds
- Columbiana, AL: less internet coverage, faster speeds
- Thompsonville, CT: more internet coverage, faster speeds
- Whiteland, IN: more internet coverage, faster speeds