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DSDownloadSpeed
FCC Data · Updated April 2026
B

DuPage County Internet

DuPage County, Illinois has a Broadband Grade of B with an average download speed of 1000 Mbps across 37 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is above average for the U.S.

71
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in DuPage County

A
0
B
37
C
0
D
0
F
0
Best

Fastest ZIP Codes in DuPage County

ZIPGradeDownloadProvidersFiber
60101B1000 Mbps10Yes
60103B1000 Mbps10Yes
60106B1000 Mbps10Yes
60108B1000 Mbps10Yes
60126B1000 Mbps10Yes
60133B1000 Mbps10Yes
60137B1000 Mbps10Yes
60139B1000 Mbps10Yes
60143B1000 Mbps10Yes
60148B1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in DuPage County

ZIPGradeDownloadProvidersFiber
60101B1000 Mbps10Yes
60103B1000 Mbps10Yes
60106B1000 Mbps10Yes
60108B1000 Mbps10Yes
60126B1000 Mbps10Yes
60133B1000 Mbps10Yes
60137B1000 Mbps10Yes
60139B1000 Mbps10Yes
60143B1000 Mbps10Yes
60148B1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in DuPage County, Illinois?

DuPage County, Illinois has an average maximum download speed of 1000 Mbps across 37 ZIP codes. The county received a Broadband Grade of B (71/100), which factors in download speed, provider competition, fiber availability, and upload speed. This meets the FCC broadband standard of 100 Mbps download.

How many internet providers are in DuPage County?

DuPage County has an average of 10 internet providers per ZIP code. 100% of ZIP codes in the county have fiber internet access. Having 3 or more providers typically leads to better prices and service quality through competition.

Is there fiber internet in DuPage County?

100% of ZIP codes in DuPage County, Illinois have fiber internet available. Fiber provides the fastest and most reliable connections, typically 500 Mbps to 5 Gbps with symmetrical upload speeds. Fiber coverage in this county is above the national average.

What is the best ZIP code for internet in DuPage County?

The best-connected ZIP code in DuPage County is 60101 with a Broadband Grade of B, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

See how your connection compares to DuPage County's 1000 Mbps average.