Is Kalshi legal in South Dakota?

We found no court order or regulator action stopping Kalshi from serving South Dakota, as of Oct. 22, 2026. South Dakota's status on prediction markets: no public action found. Details are on our Kalshi in South Dakota page.

Is Polymarket legal in South Dakota?

We found no court order or regulator action stopping Polymarket from serving South Dakota, as of Oct. 28, 2026. South Dakota's status on prediction markets: no public action found. Details are on our Polymarket in South Dakota page.

What is the difference between a sportsbook and a prediction market?

A sportsbook takes the other side of each bet and keeps what bettors lose, under a state license. A prediction market is a federally regulated exchange that matches users with each other and charges a fee, which is why platforms argue state gambling law does not reach them.

South Dakota · Sports betting

Is sports betting legal in South Dakota?

Where sportsbooks stand in South Dakota, where Kalshi, Polymarket and other prediction markets stand, and why the answers differ. Built from our sourced state records.

Reviewed Oct. 21, 2026 · Live figures update with our records · Sources are footnoted

Sportsbooks: Retail onlyKalshi: No restriction found

The short answer

Only in person. Sports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.¹

Prediction markets are a separate question: we found no court order or regulator action stopping Kalshi from offering sports contracts in South Dakota, as of Oct. 22, 2026.

Sportsbooks in South Dakota

Sports betting in South Dakota is legal in person only. Sports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.¹ Gaming oversight: South Dakota Commission on Gaming.

Prediction markets in South Dakota

Our status for South Dakota: No public action found. We found no public enforcement, litigation or enacted law. Pending bills may still be listed on the state's page. South Dakota has taken no direct action against prediction markets but has joined multistate amicus briefs opposing Kalshi.

Latest action (Other development, June 12, 2026): South Dakota joined a 37-state coalition (36 states plus California) that filed an amicus brief in the Sixth Circuit supporting Ohio's enforcement position against Kalshi (date is the coalition announcement).²

We track no lawsuits involving South Dakota. Federal appeals from South Dakota go to the Eighth Circuit, where an appeal on the question is pending. Full record: prediction market laws in South Dakota.

Which prediction market apps work in South Dakota

Prediction market platforms in South Dakota
Platform	In South Dakota	Note
Kalshi	No restriction found
Polymarket US	No restriction found
Coinbase	No restriction found	Contracts trade on Kalshi.
Crypto.com	No restriction found	Contracts trade on Crypto.com \| Derivatives North America (North American Derivatives Exchange, Inc.), an affiliated CFTC-registered exchange and clearinghouse; Crypto.com's 2026-09-08 release places this entity under the OG.com spin-off.
DraftKings Predictions	Offered
Fanatics Markets	Offered	Contracts trade on Crypto.com \| Derivatives North America (Nadex rules).
FanDuel Predicts	Offered	Contracts trade on CME Group (financial contracts) and Crypto.com \| Derivatives North America / OG (sports, entertainment and combination contracts).
Gemini Predictions	No restriction found
PrizePicks	Offered	Contracts trade on Kalshi.
Robinhood	No restriction found	Contracts trade on KalshiEX, ForecastEx and Rothera Exchange and Clearing (a Robinhood joint venture with SIG); since 2026-09-08 also OG.com's North American Derivatives Exchange, Inc..
Underdog	Offered	Contracts trade on Underdog's own exchange UDX (Aristotle Exchange DCM/DCO, Inc. d/b/a Underdog Exchange), plus Kalshi and Nadex (Crypto.com \| Derivatives North America).
Webull	No restriction found	Contracts trade on Kalshi.

“No restriction found” means we know of no court order, regulator action or platform notice stopping it in South Dakota; it is not a finding that it is legal there.

Why the answers differ

A sportsbook takes the other side of each bet and keeps what bettors lose.³ It needs a license from the state. A prediction market is an exchange that matches users with each other and takes a fee,³ and the large ones are regulated by the CFTC, whose jurisdiction over trading on those exchanges federal law calls exclusive.⁴ That is the platforms’ case for offering sports contracts nationwide; by the 2025 Super Bowl, Kalshi offered them in all 50 states, including states without legal sports betting.⁵

States answer that sports event contracts are sports bets by another name; Massachusetts, for one, says Kalshi’s closely resemble wagers at licensed sportsbooks.⁶ Federal appeals courts have split, 1 for the platforms and 2 for the states, and 3 petitions now ask the Supreme Court to decide: see the circuit split.

Age limits

Kalshi and Polymarket US accept customers from 18,⁷⁸ while most states set the gambling age at 20 or 21, a gap critics including the NCAA have raised.⁹ See how old you have to be. If gambling is causing you harm, call or text 1-800-GAMBLER.

Questions

Is sports betting legal in South Dakota?: Only in person. Sports betting only at Deadwood casinos and tribal venues; SJR 504 for a mobile betting ballot measure was deferred in a House committee in Feb 2026.
Can you bet on sports online in South Dakota?: Not with a state-licensed sportsbook. Prediction markets are a separate question: we found no court order or regulator action stopping Kalshi from offering sports contracts in South Dakota, as of Oct. 22, 2026.
Is Kalshi legal in South Dakota?: We found no court order or regulator action stopping Kalshi from serving South Dakota, as of Oct. 22, 2026. South Dakota's status on prediction markets: no public action found. Details are on our Kalshi in South Dakota page.
Is Polymarket legal in South Dakota?: We found no court order or regulator action stopping Polymarket from serving South Dakota, as of Oct. 28, 2026. South Dakota's status on prediction markets: no public action found. Details are on our Polymarket in South Dakota page.
What is the difference between a sportsbook and a prediction market?: A sportsbook takes the other side of each bet and keeps what bettors lose, under a state license. A prediction market is a federally regulated exchange that matches users with each other and charges a fee, which is why platforms argue state gambling law does not reach them.