Population Density Explained Place Forecast Feature

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Population density is the number of people per square kilometre of land. Place Forecast computes it as population divided by land area.

Density is a fair way to compare places of different size. A small town and a big city can have the same density but very different populations.

Estimated figures come from the Estimated Resident Population. Future density is projected using the cohort-component method. Only the population changes over time. The land area stays fixed.

A few things matter when you read density:

• Density is not the same as crowding. Crowding is about how many people share a home. Density is about how people spread over land. A place can be dense but not crowded.
• The land area is gross. It includes parks, water, and unused land. Places with lots of unused land look less dense than they feel.
• Pre-2021 history is mapped from older ABS boundaries. Small gaps near borders are normal.
• In remote places the population estimate is less certain.

The comparison page opens on a plain map by default. For density, we suggest you switch to one of the cartogram views — Dorling or Demers. A plain map can mislead. Large areas draw the eye. A cartogram sizes each area by value, not by land area. The eye reads the rate, not the shape.