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DSDownloadSpeed
FCC Data · Updated April 2026
C

Marlboro County Internet

Marlboro County, South Carolina has a Broadband Grade of C with an average download speed of 1000 Mbps across 6 ZIP codes. 100% of the county has fiber internet access, and the area averages 10 providers per ZIP code. Internet access is near the national average.

50
Score
1000 Mbps
Avg Download
100%
Fiber Access
10
Avg Providers
Grade Distribution

ZIP Code Grades in Marlboro County

A
0
B
0
C
6
D
0
F
0
Best

Fastest ZIP Codes in Marlboro County

ZIPGradeDownloadProvidersFiber
29512C1000 Mbps10Yes
29516C1000 Mbps10Yes
29525C1000 Mbps10Yes
29570C1000 Mbps10Yes
29594C1000 Mbps10Yes
29596C1000 Mbps10Yes
Needs Improvement

Slowest ZIP Codes in Marlboro County

ZIPGradeDownloadProvidersFiber
29512C1000 Mbps10Yes
29516C1000 Mbps10Yes
29525C1000 Mbps10Yes
29570C1000 Mbps10Yes
29594C1000 Mbps10Yes
29596C1000 Mbps10Yes
FAQ

Frequently Asked Questions

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

Marlboro County, South Carolina has an average maximum download speed of 1000 Mbps across 6 ZIP codes. The county received a Broadband Grade of C (50/100), 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 Marlboro County?

Marlboro 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 Marlboro County?

100% of ZIP codes in Marlboro 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 Marlboro County?

The best-connected ZIP code in Marlboro County is 29512 with a Broadband Grade of C, 1000 Mbps maximum download, and 10 providers. Fiber internet is available in this ZIP code.

Test Your Speed

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