Washington County August 11-17 Agricultural Fair Washington County Fairgrounds Come on down to the Washington County Agricultural Fair. We have everything you're looking for- livestock, music, food, demolition derbies and more! Stop on down, get a taste of the county -and have a blast. visit Washington County. PA Text VISIT to 39187 for upcoming event details or VisitWashingtonCountyPA.com Washington County August 11-17 Agricultural Fair Washington County Fairgrounds Come on down to the Washington County Agricultural Fair. We have everything you're looking for- livestock, music, food, demolition derbies and more! Stop on down, get a taste of the county -and have a blast. visit Washington County. PA Text VISIT to 39187 for upcoming event details or VisitWashingtonCountyPA.com