Internet providers in Spearfish, South Dakota 57783
ZIP code 57783 is in Spearfish, Lawrence County, South Dakota. Compare the major providers below, then check availability for your address.
Internet in Spearfish 57783: local snapshot
About 92% of the 7,614 households in 57783 have a broadband subscription, 4 points above the South Dakota average of 89%. That ranks 57783#70 of 333 ZIP codes in South Dakota for broadband adoption.
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2023). These figures describe the area, not the providers available at your address.
Compare internet providers in Spearfish, South Dakota
Share of residential locations in Spearfish where each provider reports service, from the FCC National Broadband Map (data as of December 31, 2025). Availability depends on your exact address.
| # | Provider | Technology (varies by address) | Locations covered | |
|---|---|---|---|---|
| 1 | BHT Investment Holdings | Fixed wireless | 99%+ | |
| 2 | Midco | Fiber, Cable, Fixed wireless | 99% | |
| 3 | Clarity Telecom | Fiber, Cable, Fixed wireless | 84% | |
| 4 | T-Mobile Home Internet | Fixed wireless | 80% | |
| 5 | CenturyLink / Quantum Fiber | Fiber, DSL | 70% | |
| 6 | AT&T | Fiber, DSL, Fixed wireless | 56% | Check availability |
| 7 | Verizon | Fiber, Fixed wireless | 25% | Check availability |
Satellite internet
| 1 | HughesNet | Satellite | 99%+ | |
| 2 | Viasat | Satellite | 99%+ | |
| 3 | Starlink | Satellite | 99%+ |
Satellite service is available at nearly every address but typically has higher latency than wired options.
Provider-reported coverage does not guarantee service or speeds at a specific address. Some "Check availability" links are affiliate links; we may earn a commission at no cost to you. How we make money.
What technologies are available in Spearfish?
Fiber reaches about 36% of locations in Spearfish, so it is available in parts of the area but not everywhere. Gigabit-class service (1,000 Mbps down) is reported for about 99% of locations. Fixed wireless home internet is reported for about 99%+ of locations.
FCC National Broadband Map, data as of December 31, 2025: share of residential locations in Spearfish that providers report they can serve. City-level figures, not your address.
What to know about internet in Spearfish 57783
BHT Investment Holdings reports service to the most residential locations in Spearfish, about 100%. 6 providers report coverage of at least half of locations (BHT Investment Holdings, Midco, Clarity Telecom, T-Mobile Home Internet, CenturyLink / Quantum Fiber, and AT&T), so the market looks competitive. BHT Investment Holdings and T-Mobile Home Internet offer fixed wireless home internet, an option if you prefer no cable or fiber installation.
The median age of residents is 40.
Frequently asked questions
Is fiber internet available in Spearfish?
Yes, in part. About 36% of residential locations in Spearfish can get fiber, 98% can get cable, and about 99% can get gigabit-class speeds, per FCC data. Availability depends on your exact address.
Which internet provider has the widest coverage in Spearfish?
BHT Investment Holdings reports service to about 100% of residential locations in Spearfish, the most of any provider, per FCC data. Availability still depends on your address.
How many internet providers serve Spearfish?
7 providers report service to at least 2% of locations in Spearfish, and 6 cover at least half. Satellite (HughesNet, Viasat, Starlink) is also available nearly everywhere.
What is the difference between fiber, cable and DSL?
Fiber offers the fastest and most consistent speeds, cable is widely available with high download speeds, and DSL runs over phone lines and is usually slower. See our guide for details.
What internet speed do I need in Spearfish 57783?
Most households are well served by 100–300 Mbps. Heavy streaming, gaming or many connected devices may benefit from 500 Mbps or more.
Internet providers near Spearfish
- Belle Fourche, SD (12 mi)
- Sturgis, SD (17 mi)
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