The size of Birtinya is approximately 7 square kilometres.
The population of Birtinya in 2001 was 333 people.
By 2011 the population was 315 showing a population decline of 5.4% in the area during that time.
The predominant age group in Birtinya is 0-14 years.
Households in Birtinya are primarily couples with children and are likely to be repaying $3000 - $4000 per month on mortgage repayments.
In general, people in Birtinya work in a other occupation.
In 2001, 60.4% of the homes in Birtinya were owner-occupied compared with 36% in 2011.
Currently the median sales price of houses in the area is $606,500.