Population, households and dwellings Components of population change Population and age structure Household types

Wolli Creek - Bonar Street Precinct

Population and age structure

Between 2021 and 2026, the age structure forecasts for Wolli Creek - Bonar Street Precinct indicate a 45.1% increase in males under working age, a 42.7% increase in males of retirement age, and a 12.5% increase in males 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 Bayside Council 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.

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Forecast age structure - 5 year age groups
Wolli Creek - Bonar Street Precinct - Total males	2021		2026		2036		Change between 2021 and 2036
Age group (years)	Number	%	Number	%	Number	%	Number
0 to 4	414	6.0	579	7.2	528	6.3	+115
5 to 9	165	2.4	258	3.2	342	4.1	+177
10 to 14	93	1.3	138	1.7	243	2.9	+150
15 to 19	113	1.6	246	3.0	280	3.3	+167
20 to 24	815	11.8	781	9.7	740	8.8	-75
25 to 29	1,507	21.8	1,459	18.1	1,246	14.8	-260
30 to 34	1,571	22.7	1,552	19.2	1,307	15.5	-264
35 to 39	926	13.4	1,151	14.3	1,010	12.0	+84
40 to 44	432	6.2	656	8.1	728	8.6	+297
45 to 49	243	3.5	379	4.7	608	7.2	+365
50 to 54	169	2.4	239	3.0	444	5.3	+276
55 to 59	139	2.0	175	2.2	293	3.5	+155
60 to 64	114	1.7	144	1.8	205	2.4	+91
65 to 69	93	1.3	103	1.3	143	1.7	+51
70 to 74	69	1.0	84	1.0	109	1.3	+40
75 to 79	31	0.4	71	0.9	87	1.0	+56
80 to 84	18	0.3	28	0.3	61	0.7	+43
85 and over	7	0.1	25	0.3	49	0.6	+42
Total persons	6,918	100.0	8,066	100.0	8,425	100.0	+1,507

Source: Population and household forecasts, 2021 to 2036, prepared by .id (informed decisions), February 2023.

Key findings

In 2021, the dominant age structure for males in Wolli Creek - Bonar Street Precinct was ages 30 to 34, which accounted for 22.7% of the total males.

The largest increase in males between 2021 and 2026 is forecast to be in ages 35 to 39, which is expected to increase by 225 and account for 14.3% of the total males.

The largest male 5 year age group in 2026 is 30 to 34 years, with a total of 1,552 males.

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