We've already got gold sand, golden kiwifruit – and now Tauranga will join the ‘Golden Triangle' of economic growth, a recently released report says.

The area bound up by Tauranga, Auckland and Hamilton creates a triangle of wealth in the upper North Island which will continue to dominate the New Zealand economy, according the report commissioned by local authorities.

New Zealand's ‘Golden Triangle' of Tauranga, Hamilton and Auckland. Supplied Photo.

The area contains 2.46 million people, with a $117 billion GDP in 2015 which made up over half of the NZ economy.

Over 50 per cent of all filled jobs in New Zealand are also split up between the three cities.

The aptly named ‘Golden Triangle' has also seen an average annual population growth of 1.4 per cent over the last 10 years – twice the rate of the rest of New Zealand.

The report looked at key industry sectors, their value chains and emerging opportunities and constraints for the growth of these sectors.

It also developed growth scenarios and forecast supply and demand of labour and skills, taking into account demographic, economic and technological trends.