Hot Springs in North Dakota: Hot Water Underground, Hot Tubs Above

Some of the hottest water in the region sits more than two miles under North Dakota's western oil fields, yet there are no hot springs in North Dakota. Here is what the state's geologists have found, how far the nearest hot springs are, and the indoor waterparks with hot tubs.

Reviewed

Are there hot springs in North Dakota?

No. North Dakota has no hot springs of its own. Its rocks do hold very hot water, but at the bottom of the Williston Basin, about 13,000 feet down, where the North Dakota Geological Survey has measured 297 to 299°F. None of it reaches the surface.

The nearest hot springs are in Hot Springs, South Dakota, about 270 miles from Bismarck and 400 miles from Fargo in a straight line. In North Dakota itself, warm water means indoor waterparks, such as Splashdown Dakota in Minot, whose 45-person cloverleaf hot tub is the biggest we found.

The nearest hot springs to Fargo and Bismarck

All the nearby hot springs are to the south-west and west: the Black Hills, then north-east Montana and central Wyoming.

FromNearest hot springs (straight line)Next nearest
FargoHot Springs, South Dakota400 milesSaco, Montana, 510 milesThermopolis, Wyoming, 600 miles
BismarckHot Springs, South Dakota270 milesSaco, Montana, 330 milesThermopolis, Wyoming, 420 miles

From Bismarck, Montana's Sleeping Buffalo near Saco is only about 60 miles farther than Hot Springs, South Dakota. From Fargo, the Black Hills are the clear choice.

North Dakota's hot water, two and a half miles down

Western North Dakota sits over the deepest part of the Williston Basin, a bowl of sedimentary rock thousands of feet thick. At the bottom of the basin lies a hot aquifer. The North Dakota Geological Survey has recorded water at about 297 and 299°F at roughly 13,000 feet in McKenzie County, and expects even hotter water where the basin is deepest.

Oil wells already bring some of that heat up: in south-western North Dakota, hot, low-salinity water above 212°F comes up with oil and gas from the Lodgepole Formation, and it is usually treated as waste and pumped back underground. Just across the border near Estevan, Saskatchewan, a company drilling for geothermal power has tested water up to 261°F.

Near the surface, the ground stays at a steady 45 to 75°F year-round, which is why most of North Dakota's "geothermal" systems are heat pumps with vertical loops, not hot water. For a hot soak, the water has to be heated.

What to know before you soak in North Dakota

North Dakota's hot water is locked far underground; at the surface, warm water means indoor waterparks and hot tubs.

Natural hot springs
None
Biggest hot tub
45 people, Splashdown Dakota, Minot
Nearest hot springs
Hot Springs, South Dakota, about 270 miles from Bismarck
Listed here
4 places
Hottest water measured
297 to 299°F, 13,000 ft down

Map of heated pools in North Dakota

Where each of the 4 places in North Dakota is. Pin shapes show the type; open the larger map for more detail.

Spring site Hotel Indoor waterpark

North Dakota heated pools

Four indoor waterparks with hot tubs, from Minot to Fargo and the Turtle Mountains.

  • Waterpark

    Splashdown Dakota Super Slide

    Minot

    24,000 sq ft of slides and pools with a 45-person cloverleaf hot tub, at the Sleep Inn.

  • Waterpark

    Splashers of the South Seas

    Grand Forks

    A 40,000 sq ft indoor waterpark at the Canad Inn with an adult hot tub.

  • Waterpark

    Coconut Cove Waterpark

    Fargo

    A lap pool, hot tub and sauna at the Delta by Marriott.

  • Waterpark

    Turtle Island Indoor Water Park

    Belcourt

    An 80-degree indoor park with a lazy river and hot tub, opened in December 2023.

Questions about soaking in North Dakota

Could North Dakota use its deep hot water?

Possibly. The state geological survey is studying it; for now, hot water that comes up with oil is mostly pumped back underground.

Is there hot water underground in North Dakota?

Yes, deep down. The state geological survey has measured 297 to 299°F at about 13,000 feet in McKenzie County.

Where is the biggest hot tub in North Dakota?

Splashdown Dakota Super Slide in Minot has a 45-person cloverleaf hot tub, according to North Dakota Tourism.

Are there hot springs near Bismarck?

The nearest is Hot Springs, South Dakota, about 270 miles away in a straight line, then Saco, Montana, about 330 miles away.

Are there hot springs near Fargo?

The nearest is Hot Springs, South Dakota, about 400 miles away in a straight line.

How to visit

Best time to visit

All four are indoors and open year-round; winter is when they come into their own.

Prices and fees

Day passes vary, and some waterparks are for hotel guests; check before you go.

How to get there

Fargo and Grand Forks are on I-29 in the Red River Valley. Minot is in the north-west, and Belcourt is near the Turtle Mountains on the Canadian border.

Safety and etiquette

Hot tub tips for a waterpark.

  • Keep it shortWaterpark hot tubs are warm and busy; 10 to 15 minutes at a time is plenty.
  • Watch the little onesChildren overheat faster than adults; the CPSC's 104°F limit is a maximum, not a target.
  • Clean up afterwardsWash off with soap after the hot tub, as the CDC recommends, especially after a busy shared tub.

How we checked this page

Information here was checked on against the sources below.

Hot springs elsewhere in the United States

Other states where we list hot springs.