An average above ground pool, kit and installation, starts around $2,500, but in-ground pool can cost anywhere from $20,000 all the way up to $100,000 for a high-end design! The materials used (fiberglass, vinyl lined, concrete, title, etc.) and the pool’s size and depth, determine the total cost of a new pool. Don’t forget about the hardscaping - patio deck and landscaping that may be required to finish off the project.