Fancy some Indian takeaway? Well, you could be forking out double depending on your postcode.

According to Menulog data, shared by the Sydney Morning Herald, there are variations in the price of your meal and delivery depending on where you live.

The data show butter chicken, for example, will cost you around $11.20 in Rockdale as opposed to $20.50 in Mosman and Northbridge. If you live in Newcastle, expect the prices to go up again; curry dishes there cost on average $25.

But it’s not food delivery service that’s to be blame, as head of analytics at the Menulog Group Elijah Paling explained.

“The Menulog policy is that each restaurant sets its own pricing and delivery depending on the suburb,” he tells Broadsheet. “Economics suggests supply and demand will affect pricing, but to say at what level would require further econometric analysis.”

The policy also promises any meal ordered through the service will cost you the same as it would if ordered directly from the restaurant.

Restaurants can also offer discounts and deals at their own discretion. The trick to a cheap dinner seems to be researching the cheapest restaurants in your area, closest to your home.

Wollongong is the cheapest suburb for buying pad thai. Local restaurants are charged around $9 for food, plus a delivery fee. Whereas those hungry for noodles in Berowra in North Sydney pay on average $17.50, plus delivery.

The trend applies to almost all popular takeaway dishes – green curry is most expensive in St Ives, topping the charts at $17.81 compared to in Randwick where it sets locals back $12.   Last year Menulog processed 13.8 million orders nationally and its reach covers over 90 per cent of NSW suburbs.

For the city’s latest, subscribe to the Broadsheet newsletter.