Duke Broadband Speed Test

Maintained by:Carson WardData & methodology:Wes WardLast updated:{{date_modified_text}}January 31, 2026

Enter a zip code, city, or address below to see what speeds you can expect in your location for Duke Broadband and other ISPs.

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Jump to: Speed Benchmarks | Speed Reviews | Duke Broadband Availability

Duke Broadband Speed Benchmarks

Here’s how your result stacks up against Duke Broadband's benchmarks: fastest available speeds reach 1,000 Mbps down / 100 Mbps up. Across Duke Broadband’s footprint, typical available speeds average 1,000 Mbps down / 100 Mbps up.

Duke Broadband Internet by State

This map highlights Duke Broadband coverage and speeds by state, Duke Broadband has the biggest presence in Michigan. Hover over each state to see Duke Broadband availability by connection type, and click on a state to see all providers in that state.

Duke Broadband Speed Reviews

Duke Broadband has an overall rating of out of 5, with a total of 0 reviews and ratings across the United States. Speed ratings by service type include: Fiber: not been rated by customers yet, Cable: not been rated by customers yet, DSL: not been rated by customers yet, Fixed Wireless: not been rated by customers yet. If you'd like to tell others about your experience, you can rate or review Duke Broadband here.

Biggest Cities with Duke Broadband Internet Service

Duke Broadband is available in 10 cities throughout the country. Here is a list of the largest cities with Duke Broadband internet service: