Mayhem Haunted House
Ottumwa, IA 52501
- Winner - 2025 Haunt of the Year
- Winner - 2024 Haunt of the Year
- ...and 4 more awards
On the third floor of the old county home and barn, Mayhem Haunted is sure to SCARE! Hundreds of hours are spend each year on set design and décor. This haunt is not thrown together. Attention is paid to detail and on the best ways to get the best scare! Everyone involved in this haunted house are veterans to the haunt industry and it shows!
2026 Schedule
September 2026
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October 2026
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November 2026
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| Hours of Operation | 7:30 pm - 12 am Intermission break: 10 pm - 10:30 pm |
| Admission Cost | $20 per person admission Cash and Card accepted No pre sales of online tickets |
| Payment Accepted | Cash , Credit Cards , Debit Cards |
Photo Gallery
Nearby Attractions
-
Pierce's Pumpkin Patch
41.8 miles away
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Thrashers House of Terror
44.5 miles away
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Uncle Bill's Farm
47.8 miles away
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Sass Family Farm
49.7 miles away
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Harvestville Farms Moonlight Maze
54.0 miles away
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The Deranged Haunted Attraction
56.7 miles away
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Reviews
I greatly enjoyed the haunt this year. They added several new features to the haunt and many new scares.
October 2026
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Very scary. I can prove that because they chased me down the parking lot with the chainsaw. Nothing dangerous just a fun scare. Although, i balled my eyes out in my car haha. I didnt end up going into the actual haunted house tho lol. But, my friends did and they said it was fun. I woulld recommed it, unless u dont like chainsaws!!!! BYEEEE
October 2026
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They made some fun changes this year. The amount of little details they added to scenes shows how much time and care go into the building. I had tons of fun and experienced some great scares.
October 2026
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| Would Recommend | Yes |
| Time Visited | 5PM - 9PM |
| Kid-friendly | Yes |
Really good haunted house, plenty of jump scares thru out the whole thing. Well worth it. Highly recommend!!
October 2026
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Just yes. Today, tomorrow, next week….yes. They get your group and what level of experience you should have. We had our grandkids so they found the perfect balance for that. Highly considering going through again without the grandkids for a completely different experience. Watch your step and hold on to the rails!! 😂
October 2026
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| Would Recommend | Yes |
| Event Length | 11-20 minutes |
| Time Visited | 5PM - 9PM |
| Kid-friendly | Yes |
This is set in an actual county home that housed mental patients! This year the theme was just that! It’s a longer haunted house that also includes a barn full of scary characters and clowns!
January 2026
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An excellent Haunted House that is long and well worth the admission. The fact that it's in an old county home makes it even more scary. I'm also glad that they change it up a little here and there each year. But, also keeping some of the favorites. I love the spinning tunnel it's my favorite. I wasn't going to go this year. I suppose because alot of Haunted Houses and trails I've been to in the past don't change much from year to year. Our first time ever going to Mayhem Haunted House was the 2024 season. I'm glad my younger daughter talked me in to going again this year. Looking forward to next year.
November 2025
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Really good haunt. I greatly enjoyed going through it this year.
November 2025
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Love this. Not only was it scary but it's even creepier since the building was a mental health hospital. They also had a variety of fear. I don't scare easily but I jumped. Prices are also very fair!
November 2025
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| Would Recommend | Yes |
| Event Length | 31-45 minutes |
| Time Visited | After 9PM |
| Kid-friendly | Yes |
We LOVED this haunted house! So many good rooms, dark halls/mazes, and characters!
November 2025
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Share Your Experience
Haunt Owners
| Visitors to This Page: | 19,869 |
| Clicks to Attraction Website: | 8,344 |
| Last Edit to Your Listing: | Sep 7, 2026 |
All information on this page was submitted to Long Island Haunted Houses and was believed to be accurate at the time it was posted. Please report any inaccuracies here.