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DSDownloadSpeed
FCC Data · Updated April 2026
B

Mason County Internet

Mason County, Illinois has a Broadband Grade of B with an average download speed of 1000 Mbps across 8 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.

77
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Mason County

A
0
B
8
C
0
D
0
F
0
Best

Fastest ZIP Codes in Mason County

ZIPGradeDownloadProvidersFiber
61532B1000 Mbps10Yes
61567B1000 Mbps10Yes
62617B1000 Mbps10Yes
62633B1000 Mbps10Yes
62644B1000 Mbps10Yes
62655B1000 Mbps10Yes
62664B1000 Mbps10Yes
62682B1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Mason County

ZIPGradeDownloadProvidersFiber
61532B1000 Mbps10Yes
61567B1000 Mbps10Yes
62617B1000 Mbps10Yes
62633B1000 Mbps10Yes
62644B1000 Mbps10Yes
62655B1000 Mbps10Yes
62664B1000 Mbps10Yes
62682B1000 Mbps10Yes
FAQ

Frequently Asked Questions

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

Mason County, Illinois has an average maximum download speed of 1000 Mbps across 8 ZIP codes. The county received a Broadband Grade of B (77/100), 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 Mason County?

Mason 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 Mason County?

100% of ZIP codes in Mason 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 Mason County?

The best-connected ZIP code in Mason County is 61532 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 Mason County's 1000 Mbps average.