ZIP 57256 Internet
Grant County, South Dakota · 1000 Mbps max · 10 providers · Competitive
Score Breakdown, 100/100
Maximum Available Speeds
FCC benchmark: 100 Mbps
FCC benchmark: 20 Mbps
10 Internet Providers in 57256
| Provider | Technology | Download | Upload |
|---|---|---|---|
| Celerity Broadband LLC | Fixed Wireless | 40 Mbps | 8 Mbps |
| Golden West Telecommunications | Fiber (FTTH) | 100 Mbps | 100 Mbps |
| Midcontinent Communications | Cable (DOCSIS 1/2) | 1000 Mbps | 1000 Mbps |
| T-Mobile | Fixed Wireless | 25 Mbps | 3 Mbps |
| Rise Broadband | Fixed Wireless | 50 Mbps | 10 Mbps |
| Golden West Telecommunications | ADSL | 25 Mbps | 3 Mbps |
| CenturyLink | ADSL2 | 40 Mbps | 3 Mbps |
| Venture Communications Cooperative, INC | Fiber (FTTH) | 1000 Mbps | 1000 Mbps |
| CenturyLink | VDSL | 140 Mbps | 100 Mbps |
| Interstate Telecommunications Cooperative, INC. | Fiber (FTTH) | 1000 Mbps | 100 Mbps |
Fiber Availability
Fiber is available in 57256
Fiber providers: Golden West Telecommunications (100/100 Mbps), Venture Communications Cooperative, INC (1000/1000 Mbps), Interstate Telecommunications Cooperative, INC. (1000/100 Mbps)
Nearby ZIP Codes
See how your connection compares to the 1000 Mbps available in 57256.
Frequently Asked Questions
What internet providers are available in ZIP code 57256?
ZIP code 57256 has 10 internet providers. Celerity Broadband LLC, Golden West Telecommunications, Midcontinent Communications and 7 more serve this area. The fastest available download speed is 1000 Mbps.
What is the Broadband Grade for 57256?
ZIP code 57256 has a Broadband Grade of A (score: 100/100). This grade factors in download speed (100/100), provider competition (100/100), fiber access (100/100), and upload speed (100/100).
Is fiber internet available in 57256?
Yes, fiber-to-the-home (FTTH) internet is available in ZIP code 57256. Fiber providers in this area include Golden West Telecommunications, Venture Communications Cooperative, INC, Interstate Telecommunications Cooperative, INC..
The this entity record above pulls directly from the FCC Broadband Data Collection (BDC). What follows is the per-entity context — how this entity sits in the broader U.S. internet availability and broadband speed distribution and which underlying factors drive the headline numbers.
Every number on this page links back to the FCC Broadband Data Collection (BDC); the methodology page describes the inputs, refresh cadence, and known limitations of the underlying data product.
Practical use of this page is in combination with the comparison and ranking pages elsewhere on the site, which surface the same data for this entity’s peers within U.S. ZIPs, counties, and states. A single-entity reading without peer context can be misleading when an entity is an outlier on one axis but typical on another.
Source: FCC Broadband Data Collection, 2026.