Thermopolis State Bath House
Also known as State Bath House, Hot Springs State Park
104°F
Pool temperatures
Drive-up
Easy access
Free
No fee reported
The State Bath House in Hot Springs State Park is a free public facility with indoor and outdoor mineral pools at about 104 F, fed by the Big Horn Spring. Free access is guaranteed by an 1896 treaty. It has attendants, changing rooms and a swimsuit requirement, and is a short drive from downtown Thermopolis.
01 · Before you go
Plan your visit
What to expect on the ground: rules, facilities and when to go.
- Swimsuits required
- Changing rooms & parking
- Pools2 (indoor and outdoor mineral pools)
- ModerateWeekday mornings for fewer people; cold evenings are popular for contrast with the outdoor air.
- HoursMonday to Saturday 8am to 7pm, Sunday noon to 7pm (extended hours from Feb 2025). One older guide lists 5:30pm closing; check with the park before a late visit.
- Good for kids
- SeasonOpen year-round; closed on some winter holidays.
- Open in winterOpen year-round; closed some winter holidays. Winter guide
- Free to soakFree admission, guaranteed under the 1896 treaty transfer of the springs to the state.
Best time to go. Weekday mornings for fewer people; cold evenings are popular for contrast with the outdoor air.
02 · Live
Conditions
Access status, weather and hazards. Closure feeds are checked automatically every morning.
Access
No closures reported
No closure, fire or weather warning found in Forest Service, wildfire (NIFC) or National Weather Service feeds. That isn't confirmation it's open, so check with Wyoming State Parks.
Checked 22 Oct · updated daily
Checked 2025-2026 closures in Oct 2026: the State Bath House has stayed open throughout. The nearby Star Plunge (a separate pay facility) has been closed since Jan 14, 2025; the state bought it for $1.8M in 2026 and as of Sept 2026 was weighing demolition. The park boardwalk was closed for replacement from May to late Aug 2026, but the bath house stayed open.
Water is about 104 F; people with heart conditions, high blood pressure or pregnancy should consult a doctor. Do not drink the water. No soap or alcohol. Young children must be supervised. Park has free-roaming bison, keep your distance. Mineral water can make surfaces slippery.
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03 · Route
Getting there
Nearest town: Thermopolis.
- 1
In Hot Springs State Park on the north edge of Thermopolis, off US-20.
- 2
Bath house address is 220 Park St, Thermopolis.
43.6540, −108.1940 · nearest town Thermopolis, WY
04 · Where to stay
Stay nearby
Make a night of it. Places to stay near Thermopolis, from campgrounds to cabins.
If you book through these links we may earn a small commission, at no extra cost to you. It never affects what we list or how.
Checked against 6 sources, with closures, wildfires and weather warnings re-checked daily.Show sourcesShare your photosSuggest an update
- wyoparks.wyo.gov (hours)
- hotspringsguides.com (fee, temp, rules, coordinates)
- hotspringsguides.com (fee, rules, address)
- wyospcr.wyo.gov (status_notes)
- cowboystatedaily.com (status_notes)
- wyoparks.wyo.gov (land_manager, official_url)
