The postcode you grew up in can say a lot about you.
Perhaps it might explain your accent or the school you went to.
But a national report released today by Jesuit Social Services and Catholic Social Services Australia, has found that your postcode can explain far more than that.
The report has pinpointed the worst postcodes to grow up in, where incarceration rates are high, domestic violence and drug use are common, and education levels are low.
The lead author of Dropping Off The Edge is former head of New South Wales prisons, Professor Tony Vinson.
He complied the same type of study seven years ago, and today he has released his latest snapshot of disadvantage.