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 47.3% increase in females under working age, a 59.4% increase in females of retirement age, and a 11.9% increase in females 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 females	2021		2026		2036		Change between 2021 and 2036
Age group (years)	Number	%	Number	%	Number	%	Number
0 to 4	366	5.6	549	7.2	499	6.3	+134
5 to 9	168	2.6	245	3.2	337	4.2	+169
10 to 14	102	1.6	143	1.9	243	3.0	+141
15 to 19	116	1.8	249	3.3	274	3.4	+158
20 to 24	830	12.7	811	10.6	766	9.6	-64
25 to 29	1,548	23.7	1,445	18.9	1,241	15.5	-307
30 to 34	1,448	22.2	1,418	18.6	1,177	14.7	-271
35 to 39	770	11.8	1,040	13.6	900	11.3	+130
40 to 44	340	5.2	555	7.3	652	8.2	+312
45 to 49	210	3.2	317	4.1	555	7.0	+345
50 to 54	150	2.3	205	2.7	386	4.8	+236
55 to 59	144	2.2	174	2.3	263	3.3	+119
60 to 64	139	2.1	161	2.1	204	2.6	+65
65 to 69	96	1.5	131	1.7	159	2.0	+63
70 to 74	60	0.9	88	1.1	128	1.6	+68
75 to 79	33	0.5	54	0.7	98	1.2	+65
80 to 84	9	0.1	33	0.4	62	0.8	+53
85 and over	4	0.1	16	0.2	39	0.5	+35
Total persons	6,534	100.0	7,635	100.0	7,985	100.0	+1,450

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

Key findings

In 2021, the dominant age structure for females in Wolli Creek - Bonar Street Precinct was ages 25 to 29, which accounted for 23.7% of the total females.

The largest increase in females between 2021 and 2026 is forecast to be in ages 35 to 39, which is expected to increase by 270 and account for 13.6% of the total females.

The largest female 5 year age group in 2026 is 25 to 29 years, with a total of 1,445 females.

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