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According to the 2011 ABS census, the MMA has a population of about 3.8 million, living in about 40,000 residential MBs across 31 LGAs. The total population has been classified into three age groups, with the majority being adults (aged 15-64, 68.33%), followed by the young (aged 0-14, 18.64%) and the old (aged 65+, 13.03%). Table 4.3.1 and Figure 4.3.1 show some LGA-based summary statistics and ranking of population (total, young, adult, old), area (total, residential), area ratio (residential/total) and number of residential MBs.

In the MMA, an average residential Mesh Block have about 95 persons, including 18 young persons, 65 adults and 12 old persons; and an average LGA have a

population size of 123327 persons, including 22982 young persons, 84271 adults and 16074 old persons. For the LGA-based total population, Casey (249560 persons), Brimbank (181824 persons) and Monash (169856 persons) rank the top three and Nillumbik (51029 persons), Melbourne (61065 persons) and Cardinia (62612 persons) the bottom three. This ranking is maintained for the adult population. For the LGA-based young population, Casey (58779 persons), Wyndham (38119 persons) and Hume (37940 persons) are the top three and Melbourne (5827 persons), Yarra (8283 persons), and Port Phillip (9307 persons) the bottom three. For the LGA-based old population, Monash (29458 persons), Mornington Peninsula (28721 persons) and Whitehorse (26359 persons) are the top three, with Nillumbik (4247 persons), Melbourne (4654 persons) and Cardinia (6023 persons) being the bottom three. For the residential to total area ratio, Glen Eira has the highest (84.7%) and Cardinia the lowest (6.3%), as shown in Figure 4.3.2.

LGA-based and MMA-based residential density (Persons per hectare residential area, Ar) and population density (persons per hectare total are, At) for the four age groups are summarised in Table 4.3.2, and illustrated in Figure 4.3.3 (for residential density) and in Figure 4.3.4 (for population density). On average, every 100 ha (or one km²) of residential area (Ar) in the MMA carries 2247 persons, including 419 young persons, 1536 adults and 293 old persons. At the LGA level, Melbourne (12276 persons), Yarra (8037 persons) and Port Phillip (7983 persons) rank the top three for total population, and Cardinia (771 persons), Mornington Peninsula (881 persons) and Yarra Range (931 persons) rank the bottom three.

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In terms of population density, every 100 ha (or one km²) of land area (At) in the MMA carries 498 persons, including 93 young persons, 340 adults and 65 old persons. At the LGA level, Port Phillip (4235 persons), Yarra (3749 persons) and Stonnington (3597 persons), rank the top three for total population, and Cardinia (49 persons), Yarra Range (97 persons) and Nillumbik (118 persons) rank the bottom three (Table 4.3.2, Figure 4.3.4).

Table 4.3.1 Some LGA-based summary statistics

(on populations, total area (At), residential area (Ar), residential to total area ratio (Ar/At) and total number of residential MBs (MB*) for each LGA in the MMA)

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Table 4.3.2 The 2011 population densities of the four age groups for each LGA in the MMA

(Persons /Ha, Ar = residential area, At = total area)

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Figure 4.3.1 The population for the four age groups for each LGA in the MMA.

249560

0 50000 100000 150000 200000 250000 300000

CASEY

The 2011 Population for Each LGA in MMA

Young Population Adult Population Old Population Total Population

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Figure 4.3.2 The residential to total area ratio for each LGA in the MMA

84.7%

0.0% 10.0% 20.0% 30.0% 40.0% 50.0% 60.0% 70.0% 80.0% 90.0% 100.0%

GLEN EIRA

The Residential to Total Area Ratio

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Figure 4.3.3 The 2011 residential density (persons per hectare of residential area) of the four age groups for each LGA in the MMA

122.76

-10.00 10.00 30.00 50.00 70.00 90.00 110.00 130.00 150.00 MELBOURNE

The 2011 Residential Density

in the MMA (

Persons per hectare of residential area)

Young_Pop/Ar Adult_Pop/Ar Old_Pop/Ar Total_Pop/Ar

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Figure 4.3.4 The 2011 population density (persons per hectare of total area) of the four age groups for each LGA in the MMA

0.00 10.00 20.00 30.00 40.00 50.00

PORT PHILLIP

The 2011 Population Density

in the MMA (

Persons per hectare of total area)

Young_Pop/At Adult_Pop/At Old_Pop/At Total_Pop/At

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Spatial variations in population densities for the four age groups at the Mesh Block level across the MMA are shown in Map 4.3.1 (total), Map 4.3.2 (young), Map 4.3.3 (adult) and Map 4.3.4 (old), using quintile-based class limits, which are summarised in Table 4.3.3.

These maps shown that:

 densities for the total population (the MMA mean = 22.5 persons / ha) and the adult population (the MMA mean = 15.4 person / ha) show similar spatial variations, i.e. both are highly concentrated in the inner suburbs close to the CBD of the MMA;

 high density clusters of young population (the MMA mean = 4.2 persons / ha) occur in both the inner suburbs and the southeast, west and north peripheral suburbs; and

 high density clusters of old population (the MMA mean = 2.9 person / ha) appear in both the inner suburbs and the zone of middle suburbs.

These spatial patterns are more clearly shown in the set of hot spot maps, i.e. Map 4.3.5 (total), Map 4.3.6 (young), Map 4.3.7 (adult) and Map 4.3.8 (old), classified into seven levels based on the GiZ scores (see section 3.10 for more details): very low, low, medium -, medium, medium +, high, very high. The "very low" label means very low density.

Table 4.3.3 Population density quintile class limits for the four age groups

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Map 4.3.1 The total population (age 0-115) density in the MMA

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Map 4.3.2 The young population (age 0-14) density in the MMA

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Map 4.3.3 The adult population (age 15-64) density in the MMA

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Map 4.3.4 The Old population (age 65+) density in the MMA

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Map 4.3.5 The spatial variation of total (age 0-115) population density

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Map 4.3.6 The spatial variation of young (age 0-14) population density

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Map 4.3.7 The spatial variation of adult (age 15-64) population density

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Map 4.3.8 The spatial variation of old (age 65+) population density

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Spatial variations in population concentrations for the young, adult and old age groups at the Mesh Block level across the MMA are shown in Map 4.3.9 (young), Map 4.3.10 (adult) and Map 4.3.11 (old), using quintile-based class limits, which are summarised in Table 4.3.4.

These maps shown that :

 clusters of high concentration of young population (the MMA mean = 18.6%) occur mainly in the peripheral suburbs;

 clusters of high concentration of adult population (the MMA mean = 68.3%) appear in both the inner suburbs and the peripheral suburbs.

 clusters of high concentration of old population (the MMA mean = 13.0%) appear mainly in the zone of middle suburbs and some peripheral suburbs, especially in the Mornington Peninsula.

These spatial patterns are more pronounced in the set of hot spot maps, i.e. Map 4.3.12 (young), Map 4.3.13 (adult) and Map 4.3.14 (old), classified into seven levels based on the GiZ scores (see section 3.10 for more details): very low, low, medium -, medium, medium +, high, and very high. The "very low" level means very low

concentration.

Table 4.3.4 Population concentration quintile class limits for the four age groups

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Map 4.3.9 The young population concentration (age 0-14) density in the MMA

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Map 4.3.10 The adult population concentration (age 15-64) density in the MMA

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Map 4.3.11 The old population concentration (age 65+) density in the MMA

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Map 4.3.12 The spatial variation of total (age 0-115) population concentration

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Map 4.3.13 The spatial variation of total (age 0-115) population concentration

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Map 4.3.14 The spatial variation of total (age 0-115) population concentration

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