Underserved Areas for Broadband in South Dakota (2026)
Millions of Americans still lack access to reliable, affordable broadband. In South Dakota, the digital divide is most acute in smaller communities where provider investment has been limited. The table below highlights the least-populated cities in our database — areas where broadband options are most likely to be sparse.
24 Smallest Communities Tracked in South Dakota
| # | City | Population | Coverage Outlook |
|---|---|---|---|
| 1 | Milbank | 3,544 | Likely underserved — limited provider options |
| 2 | Dell Rapids | 3,996 | Likely underserved — limited provider options |
| 3 | Harrisburg | 5,498 | Likely underserved — limited provider options |
| 4 | Tea | 5,598 | Likely underserved — limited provider options |
| 5 | Belle Fourche | 5,617 | Likely underserved — limited provider options |
| 6 | Tripp | 5,624 | Likely underserved — limited provider options |
| 7 | Sturgis | 7,020 | Likely underserved — limited provider options |
| 8 | Madison | 7,258 | Likely underserved — limited provider options |
| 9 | Box Elder | 9,289 | Likely underserved — limited provider options |
| 10 | Vermillion | 10,738 | Likely underserved — limited provider options |
| 11 | Brandon | 11,048 | Likely underserved — limited provider options |
| 12 | Spearfish | 12,193 | Likely underserved — limited provider options |
| 13 | Huron | 13,313 | Likely underserved — limited provider options |
| 14 | Pierre | 14,091 | Likely underserved — limited provider options |
| 15 | Yankton | 15,411 | May have 1–2 providers |
| 16 | Mitchell | 15,669 | May have 1–2 providers |
| 17 | Watertown | 22,655 | May have 1–2 providers |
| 18 | Brookings | 23,657 | May have 1–2 providers |
| 19 | Aberdeen | 28,102 | May have 1–2 providers |
| 20 | Rapid City | 74,703 | May have 1–2 providers |
| 21 | Sioux Falls | 192,517 | May have 1–2 providers |
| 22 | Deadwood | N/A | Likely underserved — limited provider options |
| 23 | Sisseton | N/A | Likely underserved — limited provider options |
| 24 | Lead | N/A | Likely underserved — limited provider options |
The Digital Divide in South Dakota
Rural and low-income communities in South Dakota often have only one or two broadband providers — and in some cases, none offering speeds that meet the FCC's 100/20 Mbps benchmark. This lack of competition leads to higher prices and slower speeds compared to urban areas.
Federal programs like BEAD (Broadband Equity, Access, and Deployment), the Affordable Connectivity Program successor, and USDA ReConnect grants are directing billions toward closing these gaps. You can check whether your area qualifies for subsidized broadband by entering your ZIP code in our availability checker.
How This Data Is Compiled
We track cities using U.S. Census population estimates and cross-reference them with FCC BDC filings. Smaller population centers are more likely to be underserved because providers prioritize areas with higher subscriber density. For our full methodology, see the methodology page.
Frequently Asked Questions
- Which areas in South Dakota have the worst broadband coverage?
- Smaller, more rural communities in South Dakota tend to have the fewest broadband options. The table above lists the least-populated tracked cities, which often correlate with limited provider competition and slower available speeds.
- What is being done about broadband gaps in South Dakota?
- The federal Broadband Equity, Access, and Deployment (BEAD) program is allocating billions to expand high-speed internet to underserved areas nationwide. South Dakota is slated to receive funding to close coverage gaps in rural and low-income communities.
- How can I report a broadband gap in South Dakota?
- You can file a challenge on the FCC Broadband Data Collection (BDC) map at broadbandmap.fcc.gov if your address is incorrectly listed as having service. This data directly influences federal funding allocations.