svg rectangle color
South Gippsland ShirePopulation forecast


Population and age structure

Between 2016 and 2026, the age structure forecasts for Leongatha indicate a 18.1% increase in population under working age, a 23.3% increase in population of retirement age, and a 19.4% increase in population of working age.

Knowledge of how the age structure of the population is changing is essential for planning age-based facilities and services, such as child care, recreation and aged care.

The forecast age groups of Leongatha is a function of the current age of the population (people aging each year, being born and dying) as well as the age of people migrating into and out of the area. This in turn is driven by location (fringe, city centre, regional or rural) the existing housing stock (separate dwellings, medium or high density), the amount and type of new residential development (same as existing stock, or diversifying) and where the area is in a cycle of change. We call this the area’s residential role and function. You can learn more about this in the section household and suburb life cycles.

Forecast age structure - 5 year age groups
Leongatha - Total persons201620262036Change between 2016 and 2036
Age group (years)Number%Number%Number%Number
0 to 44397.74486.55086.3+69
5 to 93896.84746.95386.7+149
10 to 143796.65037.35556.9+176
15 to 192885.04025.84705.8+182
20 to 242684.73264.73904.8+121
25 to 293646.33575.24185.2+54
30 to 343526.14025.84525.6+99
35 to 393095.44466.54876.1+177
40 to 442895.04045.94675.8+177
45 to 492734.73625.34605.7+187
50 to 543275.73475.04405.5+112
55 to 593546.23354.94135.1+59
60 to 643305.83865.64175.2+87
65 to 693916.84166.04305.3+38
70 to 743045.33955.74635.8+159
75 to 792494.33925.74425.5+193
80 to 841963.42633.83534.4+156
85 and over2374.12323.43374.2+100
Total persons5,741100.06,890100.08,038100.0+2,297
Source: Population and household forecasts, 2016 to 2036, prepared by .id (informed decisions), November 2017.

Key findings

In 2016, the dominant age structure for persons in Leongatha was ages 0 to 4, which accounted for 7.7% of the total persons.

The largest increase in persons between 2016 and 2026 is forecast to be in ages 75 to 79, which is expected to increase by 143 and account for 5.7% of the total persons.

The largest 5 year age group in 2026 is 10 to 14 years, with a total of 503 persons.

DISCLAIMER: While all due care has been taken to ensure that the content of this website is accurate and current, there may be errors or omissions in it and no legal responsibility is accepted for the information and opinions in this website.

Please view our Privacy Policy, Terms of use and Legal notices. Stats NZ Data and the copyright in the Stats NZ Data remains the property of the Statistics New Zealand.

The copyright in the way .id has modified, transformed or reconfigured the Stats NZ Data as published on this website remains the property of .id. Stats NZ Data can be accessed on the Statistics New Zealand website at Unless otherwise specified, content that Stats NZ produce is licensed under the Creative Commons Attribution 4.0 International licence. For further information see