The figures also indicate trampoline injuries are on the rise.
Last year's national claim count was the highest in five years.
Jonathan Collins of Springfree Trampoline says children should be supervised at all times on trampolines.
"Broken bones are the most common injury, followed by bruising, sprains, cuts, dislocation and dental injury," Mr Collins said.
"The one at a time rule is important. A large number of injuries occur when multiple jumpers are on the trampoline and the smaller person is almost always the one injured."
Springfree Trampolines are said to be the world's safest of the five trampolines tested in Consumer NZ's latest trampoline report, the Springfree was the only one to pass safety tests.
Mr Collins said falls and hitting trampoline frames and springs were the leading cause of injuries.
"While you'd think a net and pads would stop those injuries, studies show they're not doing so," he said.
When buying a trampoline, people should look at the quality of the net and ensure pads provide adequate protection.
Consumer NZ has called for mandatory safety standards around trampolines. It also recommended voluntary standards, which were last revised in 1997, be updated.
An age breakdown shows injury numbers tapered off after the 10- to 14-year age bracket, but experienced a slight resurgence for those aged 35 to 44 in the past five years. Last year, 103 claims were accepted for people aged 25 to 29. This jumped to 160 claims for those aged 35 to 39, and 144 claims for those aged 40 to 44.
An ACC spokeswoman said trampolines were common in Kiwi backyards. But it was important to monitor young ones and ensure equipment met safety standards.APNZ