The number of federal MPs is expected to drop by one, to 150, at the next election.
The Australian Electoral Commission is due to announce the result of what is known as its entitlement determination on Thursday.
Calculating how many members of the House of Representatives each state and territory is entitled uses a population quota.
The final result is expected to give Western Australia an extra seat, taking its federal MP numbers to 16.
WA has recorded the fastest population growth of any state or territory over the year ending December 31, up 2.3 per cent.
Victoria will likely lose a seat, taking its entitlement to 38, and NSW will drop an electorate to 46.
Tasmania is guaranteed a minimum of five members under the constitution.
The commission said any redrawing of seats resulting from the change in a state's entitlement will likely take until the third quarter of 2024 for final names and boundaries to be determined.
A call for public suggestions and comments is pencilled in for later this year.
The redistributions will not impact on the Indigenous voice referendum to be held between October and December.
The electoral commissioner is required to calculate the representation of each state and territory in the House of Representatives once the lower house has met continuously for a period of 12 months after the day of its first meeting.
Parliament returned on July 26 last year following Labor's election win.
