There were 58 Tasmanian young people kept at Ashley Youth Detention Centre last financial year at an average of 12 detainees per day.
The Australian Institute of Health and Welfare's latest youth justice report showed this figure was lower than the previous financial year of 65 detainees - or an average of 11 per day.
There were 531 young people on community service orders at an average of 237 per day.
Tasmania had the lowest rate of children in detention in the country.
Completed periods of remand were more likely to be followed by detention in Tasmania which bucked a trend in other states where periods of remand were more likely to result in a community-based sentence.
About two-thirds of Tasmanian young people in detention ended their sentence through being released on parole.
Less than 1 per cent of youth offenders nationally were given a sentence in detention for their first type of supervision period.
In Tasmania, 46 per cent of offenders were more likely to receive a probation order or something similar.