More than 140,000 crimes were committed against older people during the past ten years, with the greatest number recorded during 2016 (18,427).
The most commonly recorded crime involving an older person was theft, followed by burglary, property damage, and assault.
Crime Statistics Agency Chief Statistician Fiona Dowsley said the study found that an older person was more likely to know the perpetrator for crimes against the person compared to property and deception offences.
"Our research found that in close to two-thirds of crimes against the person the victim knew the perpetrator, while this was the case for less than five per cent of property and deception offences," Ms Dowsley said.
"Around one in three assaults against older people were committed by a family member, with the majority of these cases perpetrated by a child against their parent," she said.
"The study found that some types of offences were more likely to be committed against those aged 85 or older, with the largest proportion of victims aged 85 years and over recorded for sexual offences (33.9%)," she said.
Overall, fifty-seven per cent of crimes against the person took place in a residential location, while this was the case for sixty-two per cent of property and deception offences.
The paper Crimes against older people in Victoria was released today. It examined all offences recorded by Victoria Police that occurred during the 10 years to 31 December 2017 where the recorded victim was a person aged 65 or older.