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DSDownloadSpeed
FCC Data · Updated April 2026
B

Best Internet in DuPage, IL

1000 Mbps avg · 37 ZIP codes · 100% fiber · 10 providers/ZIP

1000
Avg Mbps
1,000
Max Mbps
100%
Fiber Access
10
Avg Providers
Providers

Internet Providers in DuPage

ProviderZIP Codes Served% of Area
Comcast37100%
At&T Illinois37100%
T-Mobile37100%
King Street L.p.37100%
United States Cellular Corporation37100%
Rise Broadband37100%
Frontier North Illinois Gte37100%
Wisper Isp, LLC37100%
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ZIP Codes in DuPage

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FAQ

Frequently Asked Questions

What is the average internet speed in DuPage, IL?

DuPage, Illinois has an average maximum download speed of 1000 Mbps across 37 ZIP codes. The fastest available speed is 1000 Mbps. 100% of ZIP codes have fiber internet.

Who are the best internet providers in DuPage?

The most widely available providers in DuPage are Comcast (37 ZIPs), At&T Illinois (37 ZIPs), T-Mobile (37 ZIPs). Check individual ZIP codes for exact availability at your address.

Is fiber internet available in DuPage?

Yes, fiber internet is available in 100% of DuPage's ZIP codes. Fiber coverage is good in this area. Search your specific ZIP code for exact fiber availability.

How does DuPage compare to the rest of Illinois?

DuPage has an average Broadband Grade of B (71/100). The DuPage area averages 10 providers per ZIP code with 100% fiber access. Check the Illinois overview for statewide comparison.