Generally, a non 4-H member can "Open-exhibit" in the County fair. Anyone living the county who is not a junior exhibitor should be eligible to enter in the Open Class.
That depends on your fair. You need to contact them directly.
It depends on the fair. Some county fairs are also 4-H fairs and others are for open class. If you aren't already a 4-H member, please consider joining as it's a very worthwhile organization.
The County Fair was created in 1912.
Clark County Fair was created in 1868.
Tillamook County Fair was created in 1891.
Arts County Fair was created in 1992.
Arts County Fair ended in 2007.
Lycoming County Fair was created in 1870.
Neshoba County Fair was created in 1889.
Umatilla County Fair was created in 1912.
County Fair was created on 1962-11-26.
In which county?