Connecticut Internet Overview
909 Mbps avg · 288 ZIP codes · 90% fiber · 8 counties
County Grade Distribution
Best Broadband Counties in Connecticut
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Fairfield | A | 1000 Mbps | 100% | 46 |
| Hartford | A | 1000 Mbps | 100% | 60 |
| New Haven | A | 1000 Mbps | 100% | 41 |
| Litchfield | A | 1000 Mbps | 100% | 40 |
| Middlesex | B | 1000 Mbps | 100% | 23 |
| New London | B | 1000 Mbps | 100% | 33 |
| Tolland | B | 1000 Mbps | 100% | 16 |
| Windham | B | 100 Mbps | 0% | 29 |
Slowest Counties in Connecticut
| County | Grade | Avg Download | Fiber | ZIPs |
|---|---|---|---|---|
| Windham | B | 100 Mbps | 0% | 29 |
| Tolland | B | 1000 Mbps | 100% | 16 |
| New London | B | 1000 Mbps | 100% | 33 |
| Middlesex | B | 1000 Mbps | 100% | 23 |
| Litchfield | A | 1000 Mbps | 100% | 40 |
| Hartford | A | 1000 Mbps | 100% | 60 |
| New Haven | A | 1000 Mbps | 100% | 41 |
| Fairfield | A | 1000 Mbps | 100% | 46 |
All 8 Counties in Connecticut
Internet Providers in Connecticut
| Provider | ZIP Codes | Max Speed |
|---|---|---|
| T-Mobile | - | 25 Mbps |
| Charter (Spectrum) | - | 1,000 Mbps |
| Comcast (Xfinity) | - | 2,000 Mbps |
| Frontier Communications | 288 | 1,000 Mbps |
| Cox Communications | 288 | 1,000 Mbps |
| Cablevision | 288 | 1,000 Mbps |
| Breezeline | 288 | 1,000 Mbps |
Cities in Connecticut
Neighboring States
See how your connection compares to the 909 Mbps average in Connecticut.
Frequently Asked Questions
What is the average internet speed in Connecticut?
Connecticut has an average maximum download speed of 909 Mbps across 288 ZIP codes. 90% of areas have fiber internet access, and the state averages 10 providers per ZIP code.
Which counties in Connecticut have the best internet?
The counties with the best broadband in Connecticut include Fairfield (Grade A), Hartford (Grade A), New Haven (Grade A). These areas have the fastest average speeds and most provider competition.
How does Connecticut compare to the national average?
The national average download speed is 876 Mbps, while Connecticut averages 909 Mbps, above the national average. Nationally, 96% of areas have fiber, compared to 90% in Connecticut.
The this entity record above pulls directly from the FCC Broadband Data Collection (BDC). What follows is the per-entity context — how this entity sits in the broader U.S. internet availability and broadband speed distribution and which underlying factors drive the headline numbers.
Every number on this page links back to the FCC Broadband Data Collection (BDC); the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
For readers using this page as a decision input, the related-entity pages elsewhere on the site provide the comparison set. The most useful comparison for this entity is typically a peer within U.S. ZIPs, counties, and states with similar size, similar exposure, or similar geography — not the national-level summary alone.
Source: FCC Broadband Data Collection, 2026.