Welcome to the Presbytery of Prospect Hill. We are a Presbytery of 59 churches and the Southeast Asian new church development in Storm Lake, serving Jesus Christ in Northwest Iowa and South Sioux City, Nebraska. Office Location: 318 E. 5th Street Box 1405 Storm Lake, IA 50588 Office Staff: James F. Sanders, Executive Presbyter Pam Prouty, Stated Clerk J. Jay Wilkinson, Interim Treasurer Darlene ...