Rochester · Statistical Area 2 (SA2)

Demographics & Identity in Rochester

Who lives here — how many people, how old they are, and how communities identify.

One of the oldest populations in its category defines Rochester, where the typical resident is 50 years old. This community of 4,016 people has grown by 5.7% since 2011, though the age of the population has continued to climb.

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📍 Rochester, Statistical Area 2 (SA2)

Where Rochester sits — Total population

4,016 ▲ +5.7%
  • 1–1: 40 areas
  • 1–2: 0 areas
  • 2–3: 0 areas
  • 3–4: 12 areas
  • 4–6: 6 areas
  • 6–9: 9 areas
  • 9–13: 10 areas
  • 13–19: 7 areas
  • 19–27: 17 areas
  • 27–39: 6 areas
  • 39–56: 5 areas
  • 56–81: 4 areas
  • 81–116: 1 area
  • 116–168: 5 areas
  • 168–242: 3 areas
  • 242–349: 4 areas
  • 349–503: 2 areas
  • 503–725: 9 areas
  • 725–1,045: 3 areas
  • 1,045–1,506: 5 areas
  • 1,506–2,171: 31 areas
  • 2,171–3,130: 83 areas
  • 3,130–4,513: 217 areas
  • 4,513–6,507: 318 areas
  • 6,507–9,382: 402 areas
  • 9,382–13,526: 546 areas
  • 13,526–19,501: 496 areas
  • 19,501–28,116: 231 areas

All statistical area 2 (sa2) areas, 2021. The marker is Rochester — lower than 84% of areas.

Total population compared with the state and national average
Rochester4,016
3561, VIC 4,498
Victoria 6,503,491
Australia 25,422,788

Population

How many people, and the typical age.

The typical person here is 50, which is far older than the national figure of 38. Since 2011, the typical age has risen by 4 years.

4,016 ▲ +5.7%

Lower than 84% of statistical area 2 (sa2) areas.

  • 2011: 3,798
  • 2016: 3,880
  • 2021: 4,016

The number of people who usually live in the area, counted on Census night.

50 yrs ▲ +8.7%

Older than 90% of statistical area 2 (sa2) areas.

  • 2011: 46 yrs
  • 2016: 49 yrs
  • 2021: 50 yrs

Half the population is older than this age, and half younger.

Age profile

How the population splits across age groups.

Seniors aged 65 and over make up 28.6% of the population, a figure far above the state average. This shift toward an older community is mirrored by a drop in children under 15, who now make up 15.7% of the area.

28.6% ▲ +27.5%

Higher than 92% of statistical area 2 (sa2) areas.

  • 2011: 22.5%
  • 2016: 26.1%
  • 2021: 28.6%

Share of the population aged 65 years and over.

15.7% ▼ -13.9%

Lower than 74% of statistical area 2 (sa2) areas.

  • 2011: 18.2%
  • 2016: 16.8%
  • 2021: 15.7%

Share of the population aged under 15 years.

Age structure

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Rochester splits fairly evenly between Seniors (65+) (29%) and Older adults (45–64) (28%), with Young adults (25–44) at 17%.

Identity & relationships

First Nations identity and marital status.

Aboriginal and Torres Strait Islander people make up 2.1% of the population, which is a little above the Victorian figure. Nearly half of all residents are married, while de facto relationships account for 11.2%.

2.1% ▲ +106.6%

Lower than 51% of statistical area 2 (sa2) areas.

  • 2011: 1.0%
  • 2016: 1.2%
  • 2021: 2.1%

Share of people who identify as Aboriginal and/or Torres Strait Islander.

11.2% ▲ +31.5%

Lower than 61% of statistical area 2 (sa2) areas.

  • 2011: 8.5%
  • 2016: 8.9%
  • 2021: 11.2%

Share of people aged 15+ who are in a de facto marriage (registered marriages excluded).

Marital status

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In Rochester, the largest group is Married at 48%, followed by Never married (29%) and Divorced (10%).

Age & sex structure

  • 85+: 85+: 64 males; 85+: 101 females
  • 80–84: 80–84: 87 males; 80–84: 82 females
  • 75–79: 75–79: 103 males; 75–79: 123 females
  • 70–74: 70–74: 144 males; 70–74: 122 females
  • 65–69: 65–69: 153 males; 65–69: 165 females
  • 60–64: 60–64: 170 males; 60–64: 157 females
  • 55–59: 55–59: 156 males; 55–59: 160 females
  • 50–54: 50–54: 122 males; 50–54: 136 females
  • 45–49: 45–49: 113 males; 45–49: 130 females
  • 40–44: 40–44: 88 males; 40–44: 89 females
  • 35–39: 35–39: 84 males; 35–39: 102 females
  • 30–34: 30–34: 76 males; 30–34: 74 females
  • 25–29: 25–29: 86 males; 25–29: 87 females
  • 20–24: 20–24: 98 males; 20–24: 91 females
  • 15–19: 15–19: 104 males; 15–19: 117 females
  • 10–14: 10–14: 117 males; 10–14: 109 females
  • 5–9: 5–9: 98 males; 5–9: 133 females
  • 0–4: 0–4: 89 males; 0–4: 81 females

Sources

  • Census of Population and Housing — Australian Bureau of Statistics, 2021 (CC BY 4.0).

More for Rochester

Cite this page

Australian Bureau of Statistics. (2021). Demographics & Identity in Rochester [Census of Population and Housing]. CensusAtlas, used under CC BY 4.0. https://censusatlas.au/region/sa2/216011409/rochester/topic/demographics-identity