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15 haunted houses, pumpkin patches, family events and festivals around Denver / Boulder, CO, each checked against its own official site for 2026 dates. Scare levels and ages are our suggestions; always check the venue's own guidance.
Large indoor haunt with several themed walkthroughs, including a licensed Jason attraction, plus a midway with axe throwing and mini escape games. Live actors and intense scares throughout.
Daytime corn maze on a Thornton farm with a smaller maze for young kids, a pumpkin field, barrel train and other add-on activities. Sister site to a haunted attraction that runs at night.
Big Erie farm festival with a 25-acre never-haunted corn maze, wagon rides out to the pumpkin patch, farm animals, slides, pedal karts and play areas. Timed tickets.
Forty-acre farm between Denver and Colorado Springs with jumping pillows, antique tractor hayrides, oversized games, a petting area and pumpkins sold by size.
Long-running Weld County farm park with a 15-acre corn maze, u-pick pumpkins and 20-plus play attractions. After dark, the separate Scream Acres haunted maze is for older kids and adults.
Weekend farm festival east of Denver with two corn mazes, a petting zoo, antique tractor hayrides, a pumpkin patch and corn pits.
Boulder family vegetable farm, now in its 50th season, with a free-to-walk pumpkin field of heirloom varieties and a farm stand.
One of northern Colorado's older pumpkin farms, with pick-your-own pumpkins across a big field, several corn mazes, a hay bale maze and farm animals.
Organic farm near Longmont with a free-entry fall festival: pumpkins by the pound, petting zoo, pony rides, a hay maze and small carnival-style kids' activities.
After-dark trick-or-treating around the zoo grounds with candy stations, costumed cryptid characters and animal ambassadors. Halloween night itself is a sensory-friendly session.
Free trick-or-treating at participating Olde Town Arvada businesses the evening before Halloween, with a costume contest in the town square.
Downtown Denver's amusement park turns Halloween: a kid-friendly Booville with trick-or-treating by day, then haunted houses and roaming monsters after 6pm. No-scare necklaces available.
Long-running community costume parade down Main Street in Longmont, followed by trick-or-treating at downtown businesses. Anyone can walk in costume.
Boulder's Halloween afternoon tradition: kids in costume trick-or-treat along Pearl Street at participating downtown shops and restaurants.
One-day harvest celebration at Denver's oldest standing house and farm site along Cherry Creek, with pumpkins and old-time family activities.
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BooMap lists 15 Halloween events near Denver / Boulder with 2026 dates confirmed on their official sites: 1 haunted house, 8 pumpkin patches and corn mazes, 3 family events and 3 fall festivals.
The most intense haunts in this guide are 13th Floor Haunted House, rated 4 of 5 ghosts on our scare scale. Check each venue's own age guidance before you go.
13th Floor Haunted House opens on September 11, 2026.
Anderson Farms Fall Festival, Colorado Pumpkin Patch, Fritzler Farm Park Fall Festival, Maize in the City, Mile High Farms Fall Festival, and 3 more. Dates, hours and prices for each are on this page.
Not-scary picks suggested for all ages include Boo at the Zoo, Colorado Pumpkin Patch, Longmont Halloween Parade, Mile High Farms Fall Festival, Munchkin Masquerade, and 8 more.
Yes: Longmont Halloween Parade, Munchkin Masquerade, Munson Farms Pumpkin Patch, Rocky Mountain Pumpkin Ranch Fall Festival and Trick or Treat Street list free admission on the official site.
None of the 11 towns we track around Denver / Boulder has announced official 2026 trick-or-treat hours yet. Most announce in early to mid October, and we add them to this page as they do.
These usually run every year, but we couldn't confirm 2026 dates on their official sites yet. Check with the venue before you go. Seen one open, or know the dates? Tell us and we'll check it.
A mile-long haunted trail through the cornfields of Anderson Farms, winding through a spooky frontier town filled with costumed scare actors. Timed-entry tickets; escape rooms on site.
An eight-acre corn maze at the Botanic Gardens' farm site, this year cut in Colorado state symbols, with a mini maze for kids 10 and under and barrel train rides.
Evening fall light show through the Botanic Gardens' main campus, mixing glowing displays with playful spooky touches. Timed tickets sell separately from daytime admission.
Evening walking trail lit by thousands of hand-carved pumpkins arranged into scenes, with a synchronized light-and-music show, s'mores and a big bounce area.
October at the invertebrate zoo: walk among free-roaming orb weaver spiders, see venomous species up close and trick-or-treat through the exhibits on select dates.
Three-day harvest festival at Chatfield Farms with a 10-acre pumpkin patch, corn maze entry, live music on two sets daily and an antique tractor display.
Official hours set by each town. Most towns announce in early to mid October; we update this page as they do.
| Arvada | Not announced yet |
| Aurora | Not announced yet |
| Boulder | Not announced yet |
| Castle Rock | Not announced yet |
| Centennial | Not announced yet |
| Denver | Not announced yet |
| Highlands Ranch (Douglas County) | Not announced yet |
| Lakewood | Not announced yet |
| Longmont | Not announced yet |
| Thornton | Not announced yet |
| Westminster | Not announced yet |
Every event here was found through local guides and then confirmed on the venue's or organizer's own website, with dates for 2026. We check each one for closures. Events we couldn't confirm yet are listed separately and clearly marked, and we recheck them every week. Scare levels (1 to 5 ghosts) and suggested ages are our read of what the venue says. Dates and hours can change, so check the official site before you go.
Run an event we missed, or spot something wrong? Join the list as a host and we'll get it on the map.
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