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The Hills Shire CouncilPopulation forecast

Castle Hill

Population, households and dwellings

The number of dwellings in Castle Hill is forecast to grow from 11,851 in 2016 to 15,464 in 2036, with the average household size falling from 3.06 to 2.92 by 2036.

This summary shows the results of the forecasts for population, households and dwellings in Castle Hill. The period 2016 to 2026, as the short to medium term, is likely to be the most accurate and useful forecast information for immediate planning purposes.

It is important to look at the relationship between population and average household size. If the average household size is falling, then there will need to be growth in the number of households (and dwellings for them to live in) to maintain or grow the population.

Forecast population, households and dwellings
Castle HillForecast year
Summary20162021202620312036
Population35,23736,74338,70341,44244,245
Change in population (5yrs)--1,5051,9602,7392,803
Average annual change--0.84%1.04%1.38%1.32%
Households11,50912,34413,13614,11415,084
Average household size3.062.972.932.922.92
Population in non private dwellings5485150184190
Dwellings11,85112,69413,49414,48415,464
Dwelling occupancy rate97.1197.2497.3597.4597.54
Population and household forecasts, 2016 to 2036, prepared by .id (informed decisions), October 2017.

Key findings

In 2016, the total population of Castle Hill was estimated to be 35,237 people. It is expected to increase by over 6,205 people to 41,442 by 2026, at an average annual growth rate of 1.64%. This is based on an increase of over 2,605 households during the period, with the average number of persons per household falling from 3.06 to 2.92 by 2026.

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