Ariz. Rev. Stat. § 11-258
A. The board may appropriate each year from the general fund a sum, which shall be known as a county fair fund, as follows:
3. In counties having a census of less than twenty-five thousand as determined by the latest preceding federal decennial census, not more than fifteen thousand dollars.
The board may expend the money in aid of a county or district fair, or to make an exhibit of the county's resources at the state fair. A district fair is one at which the boards of two or more counties shall, by resolution entered upon their minutes, invite the people of their respective counties to exhibit the resources of the county.