Safe Deposit Boxes Store all of your most important documents and possessions in a safety deposit box at Heartland Credit Union. Our boxes come in a variety of sizes to fit your personal needs. Annual Pricing for Safe Deposit Box Rental: Small box (3"×10"): $30 Medium box (5"×10"): $50 Large box (10"×10"): $100 Location Safe Deposit Box rentals are located at the 610 East St. Joseph Street location. * Rentals are available on a first-come, first-save basis. Please speak with a Member Service Officer at the St. Joseph location for complete details. Or call us: 1-800-397-9595 or 217-726-8877.