Clay County Iowa Fair Dates 2024. Spencer, iowa — the 2024 clay county fair, powered by smu, is set to bring an array of exciting entertainment, featuring a mix of beloved returning acts and captivating new. Entries are due august 1st.

| swine, sheep & meat goats arrive at fair. Spencer, iowa — the 2024 clay county fair, powered by smu, is set to bring an array of exciting entertainment, featuring a mix of beloved.