Are Prediction Markets Legal in South Dakota?
Last updated September 27, 2026. Snapshot — not legal advice.
As of September 27, 2026, prediction markets operate in South Dakota with no state restriction currently in place.
Litigation affecting South Dakota
No state has taken enforcement action against CFTC-regulated prediction-market platforms in South Dakota.
Which platforms are available in South Dakota?
Each platform’s own published availability list, checked September 24, 2026. This table covers the platforms whose complete list we could verify from a primary source: Kalshi, Polymarket (international), DKeX (DraftKings Predictions), Underdog (Underdog Predict), Novig.
| Platform | Status in South Dakota | Source |
|---|---|---|
| Kalshi | Offered here, per the platform’s own availability list | Platform’s list |
| Polymarket (international) | Unavailable here | Platform’s list |
| DKeX (DraftKings Predictions) | Offered here, per the platform’s own availability list | Platform’s list (archived Sep 16) |
| Underdog (Underdog Predict) | Offered here, per the platform’s own availability list | Platform’s list |
| Novig | Offered here, per the platform’s own availability list | Platform’s list |
Sports betting & gambling in South Dakota
Legalized 2020; Deadwood casinos + tribal lands only; statewide mobile illegal The market is regulated by the South Dakota Commission on Gaming. Tribal gaming: Significant.
The federal-vs-state fight
Every entry in this fight turns on the same question: does a prediction-market platform's federal regulation by the CFTC preempt a state's gambling law, or does the state retain authority to restrict it? Courts around the country are answering that question differently — sometimes for the platform, sometimes for the state — and almost every ruling so far is preliminary and under appeal. Treat this page as a snapshot, not a final word.
This page is informational, not legal advice. Nearly every litigation entry referenced here is a preliminary ruling under appeal. Always verify a platform's current, location-specific eligibility directly with the venue before relying on this page.