South Dakota · County profile
Internet providers in Union County, SD
T-Mobile reports service to most homes in Union County; 12 more providers report service in some areas. Satellite service is available almost everywhere.
Check what's available at your address
Type your ZIP code to see the providers reported near you in Union County. Then call to confirm plans at your exact address.
Or call and we check for you
Free · Open 24 hours a day, 7 days a week · Independent comparison service, not your internet provider
Who serves this area
Providers that serve Union County
Each card says whether the provider reports service to most homes here or only in some areas. Many homes can choose more than one provider; call to check plans and prices at your address.
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T-MobileFixed wireless
Available
Reports service to most homes in Union County.
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SparklightCable
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169 -
Long Lines
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169 -
Verizon
Available in some areas
Reports service to part of Union County; check your street.
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AT&T
Available in some areas
Reports service to part of Union County; check your street.
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MidcoCable
Available in some areas
Reports service to part of Union County; check your street.
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CenturyLink
Available in some areas
Reports service to part of Union County; check your street.
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Clarity Telecom, LLC
Available in some areas
Reports service to part of Union County; check your street.
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Hawkeye Topco Holdings LLC
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169 -
Nextlink Internet
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169 -
Alliance Communications Cooperative, Inc.
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169 -
Beresford Municipal Telephone Company
Available in some areas
Reports service to part of Union County; check your street.
Call to check plans and price (815) 934-8169
2 more providers report smaller service areas; see the table.
Available almost everywhere satellite, shown separately
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HughesnetSatellite
Available almost everywhere by satellite
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StarlinkSatellite
Available almost everywhere by satellite
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ViasatSatellite
Available almost everywhere by satellite
Show all 17 providers as a table
| Provider | Availability | Main technology | Company |
|---|---|---|---|
| T-Mobile | Available | Fixed wireless | T-Mobile USA, Inc. |
| Sparklight | Available in some areas | Cable | Cable One, Inc. |
| Long Lines | Available in some areas | Not specified | Long Lines |
| Verizon | Available in some areas | Not specified | Verizon Communications Inc. |
| AT&T | Available in some areas | Not specified | AT&T Inc. |
| Midco | Available in some areas | Cable | Midcontinent Communications |
| CenturyLink | Available in some areas | Not specified | Lumen Technologies, Inc. |
| Clarity Telecom, LLC | Available in some areas | Not specified | Clarity Telecom, LLC |
| Hawkeye Topco Holdings LLC | Available in some areas | Not specified | Hawkeye Topco Holdings LLC |
| Nextlink Internet | Available in some areas | Not specified | AMG Technology Investment Group LLC |
| Alliance Communications Cooperative, Inc. | Available in some areas | Not specified | Alliance Communications Cooperative, Inc. |
| Beresford Municipal Telephone Company | Available in some areas | Not specified | Beresford Municipal Telephone Company |
| Rise Broadband | Available in some areas | Fixed wireless | JAB Wireless, Inc. |
| Mutual Telephone Company (IA) | Reported for a few homes only | Not specified | Mutual Telephone Company (IA) |
| Hughesnet | Available almost everywhere (satellite) | Satellite | EchoStar Corporation |
| Starlink | Available almost everywhere (satellite) | Satellite | Space Exploration Technologies Corp. |
| Viasat | Available almost everywhere (satellite) | Satellite | Viasat, Inc. |
Source: FCC National Broadband Map, provider filings as of December 30, 2025 · How we use the data
Town by town
Towns and cities in Union County
| Town | Locations | Providers |
|---|---|---|
| Beresford | 1,248 | 9 |
| Dakota Dunes | 2,337 | 10 |
| Elk Point | 1,112 | 10 |
| North Sioux City | 1,949 | 10 |
Where this comes fromFCC filings and how to check one address
Check service at your address
The figures on this page summarize what providers reported to the FCC for all homes in Union County. They do not confirm that any provider serves a particular address, and providers' reports can overstate coverage. Two ways to check your own address:
- Search your address on the FCC National Broadband Map.
- Call (815) 934-8169 and we will look up the providers and plans available at your address. We are an independent service, not your provider.
Sources
Provider availability comes from the FCC National Broadband Map (provider filings as of December 30, 2025): a provider is "available" where its filing covers most homes and "available in some areas" where it covers part of them. Household counts come from the Census Bureau's American Community Survey (ACS 5-year 2020-2024), which are estimates with margins of error.
- FCC National Broadband Map — Broadband Data Collection public data (D25 filing, released 2026-09-29). Data as of December 30, 2025; retrieved October 9, 2026.
- U.S. Census Bureau, American Community Survey 5-year 2020-2024 estimates (tables B01003, B25001, B19013, B28002). Data as of ACS 5-year 2020-2024; retrieved October 9, 2026.
- U.S. Census Bureau 2024 Gazetteer Files (town locations) and 2020 Census block files (which county each town lies in). Data as of January 1, 2024 boundaries (Gazetteer); 2020 Census blocks; retrieved October 9, 2026.
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