County of Gillespie Business Offices Holiday and Office Closure Notice: The Gillespie County Business Offices will be closed Monday, September 1, 2025 in Observance of the Labor Day Holiday. County Facilities included are: Courthouse, Pioneer Memorial Library, Annex #1, Annex #3, Airport Office, County Yards/Warehouses, AgriLife Extension Office, and Gillespie County Sheriff's Department Administrative Office.