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DSDownloadSpeed
FCC Data · Updated April 2026
D

ZIP 57566 Internet

Todd County, South Dakota · 100 Mbps max · 10 providers · Competitive

Broadband Grade

Score Breakdown — 36/100

7
Download (40%)
100
Competition (30%)
13
Fiber (20%)
5
Upload (10%)
Speed

Maximum Available Speeds

Download100 Mbps

FCC benchmark: 100 Mbps

Upload100 Mbps

FCC benchmark: 20 Mbps

Providers

10 Internet Providers in 57566

ProviderTechnologyDownloadUpload
Celerity Broadband LLCFixed Wireless40 Mbps8 Mbps
Golden West TelecommunicationsFiber (FTTH)100 Mbps100 Mbps
Midcontinent CommunicationsCable (DOCSIS 1/2)1000 Mbps1000 Mbps
T-MobileFixed Wireless25 Mbps3 Mbps
Rise BroadbandFixed Wireless50 Mbps10 Mbps
Golden West TelecommunicationsADSL25 Mbps3 Mbps
CenturyLinkADSL240 Mbps3 Mbps
Venture Communications Cooperative, INCFiber (FTTH)1000 Mbps1000 Mbps
CenturyLinkVDSL140 Mbps100 Mbps
Interstate Telecommunications Cooperative, INC.Fiber (FTTH)1000 Mbps100 Mbps
Fiber

Fiber Availability

Fiber is available in 57566

Fiber providers: Golden West Telecommunications (100/100 Mbps), Venture Communications Cooperative, INC (1000/1000 Mbps), Interstate Telecommunications Cooperative, INC. (1000/100 Mbps)

Nearby

Nearby ZIP Codes

Compare 57566 vs 57563

This area may be eligible for federal broadband funding

ZIP 57566 has a Grade D, indicating poor broadband access. The BEAD Program is investing $42.5 billion to expand broadband in underserved areas. See BEAD funding for South Dakota

Test Your Speed

See how your connection compares to the 100 Mbps available in 57566.

FAQ

Frequently Asked Questions

What internet providers are available in ZIP code 57566?

ZIP code 57566 has 10 internet providers. Celerity Broadband LLC, Golden West Telecommunications, Midcontinent Communications and 7 more serve this area. The fastest available download speed is 100 Mbps.

What is the Broadband Grade for 57566?

ZIP code 57566 has a Broadband Grade of D (score: 36/100). This grade factors in download speed (7/100), provider competition (100/100), fiber access (13/100), and upload speed (5/100).

Is fiber internet available in 57566?

Yes, fiber-to-the-home (FTTH) internet is available in ZIP code 57566. Fiber providers in this area include Golden West Telecommunications, Venture Communications Cooperative, INC, Interstate Telecommunications Cooperative, INC..