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DSDownloadSpeed
FCC Data · Updated April 2026
A

Sumter County Internet

Sumter County, South Carolina has a Broadband Grade of A with an average download speed of 1000 Mbps across 9 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.

86
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Sumter County

A
9
B
0
C
0
D
0
F
0
Best

Fastest ZIP Codes in Sumter County

ZIPGradeDownloadProvidersFiber
29040A1000 Mbps10Yes
29062A1000 Mbps10Yes
29125A1000 Mbps10Yes
29128A1000 Mbps10Yes
29150A1000 Mbps10Yes
29152A1000 Mbps10Yes
29153A1000 Mbps10Yes
29154A1000 Mbps10Yes
29168A1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Sumter County

ZIPGradeDownloadProvidersFiber
29040A1000 Mbps10Yes
29062A1000 Mbps10Yes
29125A1000 Mbps10Yes
29128A1000 Mbps10Yes
29150A1000 Mbps10Yes
29152A1000 Mbps10Yes
29153A1000 Mbps10Yes
29154A1000 Mbps10Yes
29168A1000 Mbps10Yes
FAQ

Frequently Asked Questions

What is the average internet speed in Sumter County, South Carolina?

Sumter County, South Carolina has an average maximum download speed of 1000 Mbps across 9 ZIP codes. The county received a Broadband Grade of A (86/100), 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 Sumter County?

Sumter 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 Sumter County?

100% of ZIP codes in Sumter County, South Carolina 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 Sumter County?

The best-connected ZIP code in Sumter County is 29040 with a Broadband Grade of A, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

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