- Free modem and anti-virus software
- No contracts and unlimited data
- Bundle with TV to save more
- Speeds up to 7 Gbps**
Electricity
Electric Providers in Castroville
Castroville Public Works
Rates accurate as of October 26, 2026
MySolarCost
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Natural Gas
Natural Gas Providers in Castroville
Castroville Public Works
Rates accurate as of October 26, 2026
Internet
Top 8 Internet Providers in Castroville
AT&T Fiber
Get a $200 Reward Card*
- Speeds up to
- 5 Gbps
- Type
- Fiber
- Data cap
- Unlimited
- Availability
- 90.71%
Spectrum
Most Affordable Plans
- Speeds up to
- 7 Gbps**
- Type
- Cable & Fiber
- Data cap
- Unlimited
- Availability
- 82.59%
Starlink
Internet Anywhere You Are
- Speeds up to
- 400 Mbps
- Type
- Satellite
- Data cap
- Unlimited
- Availability
- 100%
Verizon 5G Home Internet
Wireless Internet Great for Renters
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
T-Mobile 5G Home Internet
Wireless Internet
- Speeds up to
- 498 Mbps
- Type
- 5G
- Data cap
- 1.2 TB
- Availability
- 100%
AT&T Air
Wireless Internet
- Speeds up to
- 300 Mbps
- Type
- 5G
- Data cap
- Unlimited
- Availability
- 100%
- Speeds up to
- 150 Mbps
- Type
- Satellite
- Data cap
- 150-850 GB
- Availability
- 100%
- Speeds up to
- Varies
- Type
- Fiber, Cable, 5G, & Satellite
- Data cap
- Varies
- Availability
- 95%
From
$39.95
/mo
Call 866-452-1131
*Not all internet providers and speeds are available at every address.
**7 Gbps speed is available in select markets.
Water & Sewage Providers in Castroville
Castroville Public Works
703 Paris St., Castroville, TX 78009
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Trash and Recycling Providers in Castroville
Republic Services
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Utilities Summary for Castroville, TX
| Electric Companies: | 1 |
| Natural Gas Companies: | 1 |
| Water & Sewage Providers: | 1 |
| Garbage, Trash & Recycling Providers: | 1 |
| Municipal Electricity: | Yes |
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Castroville Internet Connectivity
Broadband Availability
99.4879%
Percent of population with access to speeds of 100 Mbps download and 20 Mbps upload
1 Gig Availability
99.4879%
Percent of population with access to download speeds of 1 Gbps
Fiber Availability
99.4148%
Percent of population with access to fiber Internet
Fastest Internet Providers in Castroville
| Provider | Connection Type | Download Speed |
|---|---|---|
| AT&T Fiber | Fiber | 5 Gbps |
| Spectrum | Cable & Fiber | 7 Gbps |
| Starlink | Satellite | 400 Mbps |
| Verizon 5G Home Internet | 5G | 300 Mbps |
| T-Mobile 5G Home Internet | 5G | 498 Mbps |
| AT&T Air | 5G | 300 Mbps |
| Viasat | Satellite | 150 Mbps |
| Earthlink | Fiber, Cable, 5G, & Satellite | Varies |
*Not all speeds available in all areas
Utilities in Nearby Cities
Frequently Asked Questions
Can I choose my electric company in Castroville?
Yes, the state of Texas has deregulated electric utilities. Deregulation allows for multiple electric providers within each city and lets customers choose or switch to a provider or plan best fits their needs. Assuming your area has started allowing retail electric competition, you can choose between Castroville Public Works or any of the 1 electric providers available in Castroville.
Can I choose my natural gas utility provider in Castroville, TX?
No, Texas has not deregulated its natural gas utilities. The primary gas company in Castroville is Castroville Public Works.
Does Castroville offer municipal electricity services?
Yes, City of Castroville is a municipal electric provider and supplies most residents of Castroville with electricity. Most cities also offer essential municipal services like water, sewage treatment and wastewater disposal.
Who is the fastest internet provider in Castroville?
AT&T Fiber is the fastest internet service provider in Castroville, offering speeds up to 5 Gbps to 90.71% of the city.