Best Internet Providers in Dorchester, SC
Compare 10 internet providers serving 161,540 Dorchester residents in the Charleston metro. Cable, fiber, 5G, and satellite options available.
Quick Answer: Best Internet in Dorchester
Xfinity and AT&T lead Dorchester's internet market, both covering roughly 67-69% of addresses. T-Mobile 5G provides a strong wireless alternative at 69% coverage. With 10 providers competing in this Charleston-area community, residents have excellent options across cable, fiber, 5G, and satellite technologies.
- Best cable: Xfinity at 69% coverage with speeds up to 2 Gbps
- Best fiber: AT&T Fiber at 67% coverage, up to 5 Gbps
- Best wireless: T-Mobile 5G at $40-50/mo, 69% coverage
- Regional option: WOW! Internet at 30% with cable/fiber
- 10 providers: Outstanding competition for a SC community
Dorchester Internet Providers Comparison
| Provider | Technology | Max Speed | Starting Price | Data Cap | Contract | Call Now |
|---|---|---|---|---|---|---|
| Xfinity | Cable/Fiber | 2 Gbps | $30/mo | 1.2 TB | No | 1-844-963-0138 |
| AT&T Internet | Fiber/DSL | 5 Gbps | $55/mo | None | No | 1-855-850-5977 |
| T-Mobile 5G | 5G/Fixed Wireless | 245 Mbps | $40/mo | None | No | 1-844-275-9311 |
| Spectrum | Cable | 1 Gbps | $30/mo* | None | No | 1-844-481-5997 |
| Verizon Fios | Fiber | 2 Gbps | $50/mo | None | No | 1-855-387-1456 |
| WOW! Internet | Cable/Fiber | 1 Gbps | $30/mo | None | No | 1-855-496-9929 |
| HughesNet | Satellite | 100 Mbps | $40/mo | Limited | 2-year | 1-855-543-5405 |
| Viasat | Satellite | 150 Mbps | $40/mo | Unlimited** | No | 1-855-463-9333 |
| Starlink | LEO Satellite | 250 Mbps | $120/mo | Soft cap | No | Online only |
*Spectrum first-year promo. **Viasat Unleashed plan. Verizon 5G Home also available.
Top Dorchester Internet Providers
Xfinity Internet in Dorchester
Xfinity covers about 69% of Dorchester with cable and fiber service. Plans range from $30/month for 75 Mbps to $120/month for 2 Gbps. Xfinity is a solid pick for Summerville and Ladson area residents looking for reliable cable with competitive pricing.
- Connect: 75 Mbps - $30/mo
- Fast: 400 Mbps - $65/mo
- Gigabit: 1 Gbps - $80/mo
Choose If: You want broad coverage and established cable service.
Avoid If: You need unlimited data without paying extra.
Call Xfinity: 1-844-963-0138AT&T Internet in Dorchester
AT&T serves about 67% of Dorchester with fiber and DSL. Fiber customers enjoy symmetrical speeds up to 5 Gbps with no data caps. AT&T has invested heavily in fiber buildout across the Charleston metro, making Dorchester a priority area.
- Internet 300: 300 Mbps - $55/mo
- Internet 500: 500 Mbps - $65/mo
- Internet 1000: 1 Gbps - $80/mo
Choose If: You want symmetrical fiber speeds with no cap.
Avoid If: You need the lowest possible intro price.
Call AT&T: 1-855-850-5977WOW! Internet in Dorchester
WOW! Internet covers about 30% of Dorchester with cable and fiber service. Plans start at $30/month with no data caps and no contracts. WOW! is a strong regional option for residents in the Summerville area with competitive gigabit pricing.
Choose If: WOW! is available and you want no data caps at competitive rates.
Avoid If: You're outside WOW!'s 30% coverage footprint.
Call WOW!: 1-855-496-9929Dorchester Internet Speeds and Prices
| Speed Tier | Xfinity | AT&T | Spectrum | WOW! | T-Mobile 5G |
|---|---|---|---|---|---|
| 300 Mbps | $55/mo | $55/mo | $30/mo* | $30/mo | $40-50/mo |
| 500 Mbps | $65/mo | $65/mo | $70/mo | $50/mo | - |
| 1 Gbps | $80/mo | $80/mo | $90/mo | $70/mo | - |
Speed Recommendations
- 1-2 people: 100-300 Mbps for streaming and browsing
- 3-5 people: 500 Mbps for multiple devices
- Heavy use: 1 Gbps+ for gaming and remote work
Internet in Dorchester: Local Overview
Dorchester County is part of the Charleston-North Charleston metro, one of South Carolina's fastest-growing regions with 161,540 residents. The county includes Summerville, Ladson, and St. George, with most broadband infrastructure concentrated in the Summerville corridor. Ten providers compete here, delivering some of the best internet variety in the Lowcountry.
Summerville and Ladson have the strongest wired coverage from Xfinity, AT&T, and WOW!. Newer developments in Cane Bay Plantation and Nexton typically launch with fiber access. Rural portions of Dorchester County toward St. George may rely on T-Mobile 5G or satellite for primary connectivity.
Nearby Cities
Dorchester Internet FAQs
What is the best internet provider in Dorchester?
Xfinity and AT&T are the top picks with 67-69% coverage each. WOW! is a strong regional option at 30% coverage with no data caps.
Is fiber available in Dorchester?
Yes. AT&T Fiber covers about 67% of addresses, Verizon Fios covers 30%, and WOW! has cable/fiber at 30%.
How much does internet cost in Dorchester?
Plans start at $30/month for Spectrum, WOW!, or Xfinity introductory rates. Most pay $50-80/month.
What is the fastest internet in Dorchester?
AT&T Fiber at up to 5 Gbps symmetrical. Xfinity and Verizon Fios reach 2 Gbps each.
How many providers serve Dorchester?
10 providers including AT&T, Xfinity, Spectrum, T-Mobile, Verizon, WOW!, HughesNet, Viasat, and Starlink.
About the Author
Last Updated: February 7, 2026
Our team regularly reviews this guide for accuracy. Provider availability and pricing are verified quarterly.
Editorial Disclosure
InternetProviders.ai is committed to providing accurate, unbiased information. Some providers listed are partners who compensate us when you sign up through our links or phone numbers. This compensation may affect provider ordering but does not influence our ratings or recommendations. See our editorial guidelines and how we make money.
Internet Speed Requirements for Dorchester Households
The speed you need in Dorchester depends on how many people and devices use your connection simultaneously. A single person streaming video and browsing the web can get by with 50-100 Mbps. A household of 2-3 people with regular streaming and video calls should target 200-300 Mbps. Larger families with 4 or more heavy users benefit from 500 Mbps to 1 Gbps plans, especially when multiple people are streaming in 4K, gaming online, or working from home at the same time.
Upload speed matters just as much as download speed for Dorchester residents who work remotely. Video conferencing platforms like Zoom and Teams require at least 5 Mbps upload for stable HD video, and 10 Mbps or more for group calls with screen sharing. If multiple household members participate in video calls simultaneously, ensure your plan provides at least 20-25 Mbps upload speed. Fiber plans offer the best upload performance with symmetrical speeds.
How to Choose an Internet Provider in Dorchester
Start by checking which providers actually serve your specific address in Dorchester, as coverage can vary significantly even within the same city. Enter your address on each provider's website or use our comparison tool to see all available options. Compare the actual speeds offered at your address, not just the provider's maximum advertised speed, since availability of faster tiers depends on local infrastructure.
Beyond speed, compare the total monthly cost including equipment rental fees, installation charges, and price increases after promotional periods end. Providers in Dorchester, South Carolina may offer different promotions depending on the season and competition in your area. Ask about no-contract options to maintain flexibility, and check whether a provider requires a credit check, as some offer prepaid alternatives. Reading recent customer reviews specific to Dorchester gives the most relevant picture of service quality and reliability in your neighborhood.