Halloween 2026 · Boise
4 places, each confirmed for 2026 on its own website. Updated Oct 9.
Haunted housesTrails & hayridesGhost toursNot too scary
The big Boise haunts are actually out in Caldwell. The Haunted World covers more than 40 acres indoors and out, with a 700-foot underground dungeon and a 55-foot slide into darkness. Give it an hour and a half to two hours, and buy online to skip the ticket line. Requiem Haunted House, also in Caldwell, calls itself the largest indoor haunt in the Treasure Valley. It's $25. No high heels.
The list is pretty short, and that's on purpose: I only include places that have posted 2026 dates. Closer in, Fright Nights: All Ages Night at the Old Idaho Penitentiary is Oct 30 only, with a haunted cell block and a haunted infirmary for $30. Don't let the name fool you. They recommend it for 13 and up, and anyone under 18 needs an adult. The cemetery tour add-on has limited spots. Over in Nampa, Haunted Maze is a fog-filled straw maze with live actors, $25 including the farm.
Two big Caldwell haunts, a fog-filled straw maze in Nampa and a Halloween night at the Old Idaho Penitentiary.
Caldwell, ID · 19 mi from Boise
👻👻👻👻👻 Terrifying
Idaho's largest indoor and outdoor haunted attraction
Tip: Purchase tickets online ahead of time to skip waiting in the ticket line.
Caldwell, ID · 24 mi from Boise
👻👻👻👻👻 Terrifying
Largest indoor haunted attraction in the Treasure Valley.
Tip: Wear comfortable shoes as high heels are not allowed and you'll be navigating a large indoor space.
Boise, ID · 2 mi from Boise
👻👻👻👻 Very scary
Haunted cell houses and Halloween fun at the historic prison.
Tip: Print or save your receipt confirmation on your phone to use as your admission ticket.
Nampa, ID · 20 mi from Boise
👻👻👻👻 Very scary
Fog-filled straw maze packed with live actors and themed scare zones.
Tip: Dress warm in waterproof layers and wear closed-toe shoes suitable for dark, uneven terrain.
Only places with 2026 dates on their own website made this list. If a haunt you love is missing, it probably hasn't announced yet.
Haunted Houser