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In observation of the Veterans Day holiday, all County offices will be closed on Tuesday, Nov. 11, 2025. Offices will reopen for regular hours on Wednesday, Nov. 12. Many County services are available 24/7 on our Online Services webpage.

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Fairgrounds

Outdoor Arena

This rodeo- or concert-ready facility, complete with adjacent holding pens and loading ramps, is ideal for hosting animal and equine events. The facility boasts an announcer’s booth with a PA system and CD player. Two additional horse barns with two wash racks contain 94 stalls. The covered grandstands seat 2,441, with two additional metal bleachers that can accommodate 360 people. This sand-based arena is maintained prior to each rental event.

What are the rental fees & security deposit?

  • Rental rate is $1,000/day
  • Security Deposit: $500
  • Non-profits receive a 35% discount on the rental rate.
  • Events that charge admission, participation, or vendor fees will incur additional charges. Equipment rentals are also billed separately.
  • Insurance is required for all events at the Douglas County Fairgrounds (see below)
  • All events with over 150 people require a fire safety permit from the Castle Rock Fire Department. Fire permits require the submission of a floor plan to CRFD by the event holder. Additional fees may be charged by CRFD.

For more information, please contact our event staff at 720-733-6900.

What amenities are available?

  • Size: 135′ x 300′
  • Sand base arena watered and harrowed once daily before the event begins
  • Warm-up arena approximately 100’ x 150’
  • Rodeo equipment: Six (6) bucking chutes, roping chute, strip chute
  • 92 horse stalls (approximately 10’ x 10’)
  • Additional 150 stalls available on a per stall rental basis
  • Livestock holding pens with loading/unloading ramp and water troughs
  • Office (8’ x 14’) with dedicated phone line
  • Announcer’s booth equipped with PA system (cordless mic, CD/Cassette)
  • Covered grandstand – 2441 seats
  • Two sets metal bleachers – 360 seats
  • Outdoor arena lights are available and are billed at an hourly rate

How far in advance do you take reservations?

We’ve introduced new booking windows to help balance community events with larger regional gatherings and to make scheduling more predictable for everyone.

  • 6 months out – Small or local events
  • 12 months out – Large events
  • 24 months out – Major or multi-day “mega” events

These timelines ensure that high-impact events have the planning time they need, while still keeping plenty of opportunities open for community and local groups.

If you’re unsure which category your event falls under, our team is happy to help — contact us at [email protected] or 720-733-6900.

Do you have a list of caterers, AV vendors or decorators we’re required to use for our event?

No, the Douglas County Fairgrounds does not require you to use a specific caterer or decorator. You’re welcome to bring in the vendors of your choice, as long as they follow our facility guidelines, local licensing/permitting, and insurance requirements.

Can we serve alcohol at our event? Are there any special requirements?

Yes — alcohol is allowed at the Douglas County Fairgrounds. All events must comply with all local and state alcohol laws, including strict enforcement of age requirements to prevent underage drinking. However, specific requirements apply depending on the type of event:

Public Events (Alcohol for sale or included with ticket): If alcohol will be sold, the event holder must obtain the proper permits from the Town of Castle Rock, provide liquor liability insurance, and arrange for security as required by the Douglas County Sheriff’s Department.

Private Events (Alcohol not for sale but served): A permit is not required, but the event holder must provide liquor liability insurance. Depending on the size and nature of the event, security may also be required.

Our team can guide you through the requirements and help you determine what applies to your event.

What are the insurance requirements for hosting an event at the Douglas County Fairgrounds?

All events held at the Douglas County Fairgrounds must provide proof of insurance before the event. The insurance certificate must include: $1,000,000 per occurrence general liability limit

The following language under the description of operations:
“Douglas County, Colorado, its officers, agents, and employees as additional insureds,” along with the specific event name and dates

Certificate Holder: Douglas County, 100 Third St., Castle Rock, CO 80104

Alcohol Service or Sales:

If alcohol is served (not sold) → Host liquor liability and general liability coverage are required, or a general liability policy that includes host liquor coverage.

If alcohol is sold → Liquor liability and general liability coverage are required.

If a caterer or vendor is hired to serve alcohol → The caterer/vendor must also provide liquor liability and general liability coverage, naming both the Event Holder and Douglas County as additional insureds.