The Australian Parliament is bicameral, which means there are two houses – the House of Representatives and the Senate. When reference is made to the people's house, this usually means the House of Representatives. Similarly the Senate is often referred to as the state's house.
There are 150 members elected to the House of Representatives. Each member represents one of Australia's 150 electorates. On average, 150 000 people live in each electorate, with an average of 100 000 voters. Representation in the House of Representatives is based on population – people.
There are 76 senators elected to the Senate – 12 senators for each state and two for each territory. Representation in the Senate is not determined by population, but by state and territory borders.