Discover the Horror of Mayhem Haunted House

Get Ready to Scream at Mayhem Haunted House Haunted House

Get ready to scream!!

Get ready to scream!!

Get ready to scream!!

October  

9,10,16,17,23 and 24

Cash and Card accepted

No pre sales of online tickets 

Merchandise

Get ready to scream!!

Get ready to scream!!

Seasonal availability

See you back in the fall!!

We've been working tirelessly to build a better, scarier haunt for all of our fans out there!

We have been voted the best Haunted House in Iowa in 2019, 2021, 2022 and 2023. 

Reviews from IowaHauntedHouses.com

Frequently Asked Questions

Please reach out to wapellocountymayhem@gmail.com if you cannot find an answer to your question.

No, Mayhem Haunted House is only open during the Halloween season, on October 9,10, 16,17,23 & 24. 7pm to 12am with an actors break around 10pm


Groups of up to 8 people for the best experience. During peak times, may ask smaller groups to go with others


Mayhem Haunted House is a one-of-a-kind haunted house experience that is designed to scare and excite our guests.


If you get too scared and need to leave, you can use our 'chicken exit' to exit the haunted house early. Sorry no refunds!


We recommend for 16 years old and under to be accompanied by an adult. Otherwise  it is your own discretion if you dare to enter. 


Yes, for a small fee 


We don't all sales are sold the nights of the Haunt 


Contact Us

Mayhem Haunted House

13011 120th Avenue, Ottumwa, Iowa 52501, United States

wapellocountymayhem@gmail.com

Volunteer by going to the link below:

Mayhem Haunted House

13011 120th Ave, Ottumwa, Iowa 52501, United States

Copyright © 2026 Mayhem Haunted House - All Rights Reserved.

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Contact us via the listed email address. You will have a great time scaring people.  We are all volunteers and you can be too!

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