Fair Book Section:
Important Paperwork:
Market Hog Tagging Information
Important Dates:
April 1, 2026, 4-H membership deadline to be eligible to exhibit at the 2026 Warren County Fair.
May 1, 2026, Ownership, complete possession & continual care deadline for all market hog projects. Deadline to register your market hogs using the 4-H Online system. A front view and side view pictures are required.
May 1, 2026, County-born market hog registration papers (from the breeder, not the exhibitor) are due at the OSU Extension office by 4:30 p.m.
June 15, 2026, Online fair entry deadline. Online registration is required and is available at warrencounty4hfairohio.fairentry.com. No paper copies will be accepted.
June 27, 2026, Mandatory 4-H Livestock Interviews.
August 31, 2026, Deadline to have buyer thank you notes written and brought to the OSU Extension office in a stamped envelope or you will be ineligible to sell at the 2026 Warren County Fair.
Fair Schedule:
Friday, July 17th, 12:00 Noon Pen assignments are available, and fair set-up may begin.
Saturday, July 18th, 6:00 p.m. All market hog projects may begin arriving at the fair. Market hogs will not be checked-in or weighed at this time. Hogs should be stalled in their assigned pens and trailers should be removed from the barn area as soon as your hogs are unloaded.
Sunday, July 19th, 10:00 a.m. Deadline for all market hog projects to be in place on the fairgrounds.
Sunday, July 19th, 4:30 p.m. Market hog weigh-in (Building C) All projects and exhibitors must be in their pens. Fair personnel will release projects to the scales in an orderly manner by rows and pens. Hogs must be clean.
Monday, July 20th, 9:00 a.m. Beef, dairy, hog & sheep exhibitor meeting (Building E)
Monday, July 20th, 5:00 p.m. Market Hog Show (Building C)
Tuesday, July 21st, 11:00 a.m.-2:00 p.m. Swine Skillathon (Building I)
Tuesday, July 21, 12:00 noon Deadline to scratch market hogs from the sale.
Wednesday, July 22th, 9:00 a.m. County-Born Market Hog Show & Swine Showmanship (Building C)
Thursday, July 23th, 6:00 p.m. Market Hog Sale (Building C)
Friday, July 24th, 7:00 p.m. Announcement of Swine Premier Exhibitor (Intermission before awards are announced for the Grand Showman of Showmen Contest)