A program of SDSU Extension, South Dakota 4-H is the largest youth development program in the state, providing programs to youth ages 5 to 19 regardless of interest. To learn more about 4-H in Tripp County or how to enroll, email [email protected] or call (605)842-2858. SDSU Extension is an equal opportunity provider and employer in accordance with the nondiscrimination policies of South Dakota State University, the South Dakota Board of Regents and the United States Department of Agriculture.