Best Internet Providers in Decatur, IL
Compare 9 internet providers serving 73,254 Decatur residents. Find cable, fiber, 5G, and satellite plans from Xfinity, AT&T, T-Mobile, and more.
Quick Answer: Best Internet in Decatur
Xfinity is the best internet provider in Decatur, IL, with 86% coverage and plans starting at $35/month for 150 Mbps. T-Mobile 5G covers 84% at $40-50/month with no contract. AT&T serves 70% with fiber and DSL. Rise Broadband and Frontier Fiber add additional wired options in select neighborhoods.
Key Takeaways
- Best overall: Xfinity with 86% coverage starting at $35/mo
- Best wireless: T-Mobile 5G with 84% coverage, no contract
- Best fiber: AT&T Fiber with up to 5 Gbps in select areas
- 9 providers: Competitive market for a central Illinois city
- Budget option: Rise Broadband fixed wireless from $25/mo
Decatur Internet Providers Comparison
| Provider | Technology | Max Speed | Starting Price | Data Cap | Contract | Call Now |
|---|---|---|---|---|---|---|
| Xfinity | Cable/Fiber | 2 Gbps | $35/mo | 1.2 TB | 1-year | 1-844-963-0138 |
| AT&T Internet | Fiber/DSL/FW | 5 Gbps | $55/mo | None (Fiber) | No | 1-855-850-5977 |
| T-Mobile 5G | 5G Fixed Wireless | 245 Mbps | $40/mo | None | No | 1-844-275-9311 |
| Verizon 5G Home | 5G | 1 Gbps | $35/mo** | None | No | 1-855-387-1456 |
| Rise Broadband | Fixed Wireless/Fiber | 250 Mbps | $25/mo | Varies | No | 1-877-910-6207 |
| Frontier Fiber | Fiber/DSL | 2 Gbps | $49.99/mo | None | No | 1-855-981-6281 |
| HughesNet | Satellite | 100 Mbps | $39.99/mo | Limited | 2-year | 1-855-543-5405 |
| Viasat | Satellite | 150 Mbps | $39.99/mo | Unlimited* | No | 1-855-463-9333 |
| Starlink | LEO Satellite | 250 Mbps | $120/mo | Soft cap | No | Online only |
**Verizon pricing with mobile bundle. *Viasat Unleashed plan.
Top Decatur Internet Providers Reviewed
Xfinity Internet in Decatur
Xfinity covers 86% of Decatur with cable and fiber plans starting at $35/month for 150 Mbps. Plans scale up to 2 Gbps for power users. The 1.2 TB monthly data cap applies to most plans, but unlimited data is available for an additional fee.
Choose If:
- You want the widest wired coverage in Decatur
- You need speeds up to 2 Gbps for demanding use
Avoid If:
- You use more than 1.2 TB of data per month
- You prefer a no-contract option
AT&T Internet in Decatur
AT&T covers 70% of Decatur across fiber, DSL, and fixed wireless. AT&T Fiber delivers symmetrical speeds up to 5 Gbps with no data caps and no annual contracts. DSL and fixed wireless serve areas where fiber has not yet been built out.
Choose If:
- AT&T Fiber is available for symmetrical multi-gig speeds
- You want no data caps and no contract on fiber
Avoid If:
- Only DSL is available at your address (data caps apply)
- Xfinity offers comparable speeds at lower cost
T-Mobile 5G Home Internet in Decatur
T-Mobile covers 84% of Decatur with 5G home internet at $40-50/month. No contracts, no data caps, and easy self-install make it ideal for renters and those wanting flexibility. Speeds typically range from 100-245 Mbps depending on location.
Choose If:
- You want contract-free wireless internet with fast setup
- Xfinity and AT&T Fiber aren't available at your address
Avoid If:
- You need consistent low-latency for online gaming
- You need speeds above 300 Mbps reliably
Decatur Internet Speeds and Prices
| Speed Tier | Xfinity | AT&T | T-Mobile 5G | Frontier |
|---|---|---|---|---|
| 150 Mbps | $35/mo | - | - | - |
| 300 Mbps | $55/mo | $55/mo | $40-50/mo | $49.99/mo |
| 500 Mbps | $65/mo | $65/mo | - | $74.99/mo |
| 1 Gbps+ | $80/mo | $80/mo | - | $89.99/mo |
How Much Speed Do You Need?
- 1-2 people: 100-300 Mbps for streaming and browsing
- 3-5 people: 500 Mbps for multiple devices
- Heavy use: 1 Gbps+ for gaming, 4K streaming, and remote work
Learn more: How much speed do I need?
Internet in Decatur: Local Market Overview
- Population: 73,254
- CBSA: 19500 (Decatur)
- Major industries: Agriculture, Manufacturing, Education
- Top wired providers: Xfinity, AT&T, Rise Broadband, Frontier
Decatur sits in the heart of central Illinois and has a competitive broadband market for its size. Xfinity provides the widest cable coverage, while AT&T and Frontier bring fiber to a growing number of neighborhoods. T-Mobile 5G and Verizon 5G Home add wireless alternatives. Rise Broadband fills gaps with fixed wireless, making sure nearly all residents have access to multiple options.
Internet by Decatur Neighborhood
- Downtown Decatur: Xfinity and AT&T fiber widely available
- South Side: Xfinity cable with T-Mobile 5G coverage
- East Side: AT&T and Rise Broadband options
- West End: Xfinity and Verizon 5G Home in select areas
Frequently Asked Questions About Decatur Internet
What is the best internet provider in Decatur, IL?
Xfinity is the best overall with 86% coverage and plans starting at $35/month for 150 Mbps cable internet with speeds up to 2 Gbps.
Is fiber internet available in Decatur?
Yes. AT&T covers 70% with fiber options. Frontier Fiber serves about 12% of the city. Xfinity and Rise Broadband also offer fiber in select areas.
How much does internet cost in Decatur?
Rise Broadband starts at $25/month. Xfinity starts at $35/month. T-Mobile 5G costs $40-50/month. Most households pay $35-80/month.
What is the fastest internet in Decatur?
AT&T Fiber offers up to 5 Gbps. Xfinity and Frontier each provide up to 2 Gbps. Verizon 5G Home can reach 1 Gbps in select areas.
Is 5G home internet available in Decatur?
Yes. T-Mobile 5G covers 84% of Decatur at $40-50/month. Verizon 5G Home reaches 40% of the city starting at $35/month with a mobile plan.
About the Author
Last Updated: February 7, 2026
Our team regularly reviews and updates this guide to ensure accuracy. Provider availability and pricing are verified quarterly using FCC data.
Editorial Disclosure
InternetProviders.ai is committed to providing accurate, unbiased information to help you choose the right internet service. Some of the providers listed on this page are partners who compensate us when you sign up for service through our links or phone numbers. This compensation may affect the order in which providers appear, but it does not influence our ratings, reviews, or recommendations. Our editorial team independently researches and tests each provider. For more information, please see our editorial guidelines and how we make money.
Internet Speed Requirements for Decatur Households
The speed you need in Decatur 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 Decatur 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.