Seneca County Fair

About

Held in Waterloo since 1841, Seneca County Fair runs each July and centers on agriculture, friendly competition, display of crafts and projects, daily entertainment, live music, and many craft vendors. Note: food vendors not accepted due to carnival contract. Vendor and advertiser applications welcome via form on their website.

Details

Type

Fair

Season / Event Date(s)

Jul 15–18, 2026

Venue

Seneca County Fairgrounds, 100 Swift Street

Tags

• fair
• agricultural
• food