Looming redistributions of federal seats in Victoria, South Australia and the ACT could cost Malcolm Turnbull three seats before the next election, with cabinet minister Christopher Pyne a possible casualty from the shake-up.

The Australian Electoral Commission will announce on Thursday changes to the allocation of seats in the lower house, based on new population data from the Australian Bureau of Statistics.

The Parliamentary Library predicts redistributions in Victoria, South Australia and the ACT and that the overall number of seats in the lower house will grow by one to 151 in the next parliament.

Victoria's booming population - the highest of any state or territory at 2.4 per cent annually - will trigger the increase in the lower house from 37 to 38 seats. South Australia is likely to lose out, falling from 11 to 10 seats, while the ACT is likely to grow from two to three seats.