What is the Average Cost of a Koi Pond? Average Koi Pond Price

The cost of a Koi Pond will vary according to the type of pond, its size and the materials used. A liner pond, for example, measuring six feet by eight feet and at least three feet deep to help protect the fish against predators costs between $2,000 and $3,000 depending on who installs it. A concrete pond will last much longer than a liner pond but will cost on average about 20% more, perhaps up to $3,600.