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Port Noarlunga South

Estimated Resident Population (ERP)

The population estimate for Port Noarlunga South as of the 30th June 2023 is 3,145. Since the previous year, the population has declined by 0.10%. Population growth in City of Onkaparinga was 1.31%.

The Estimated Resident Population (ERP) is the Australian Bureau of Statistics' official 2023 population figure for all Local Government Areas (LGAs) - but is subject to review after the next Census release. For areas smaller than LGAs, the ERP is derived from SA1 geographies based on population distribution from the previous Census. As such, these smaller geographies are subject to a greater level of revision each Census due to the change in actual numbers and in population distributions.

Populations are counted and estimated in various ways. The most comprehensive population count available in Australia is derived from the Census of Population and Housing conducted by the Australian Bureau of Statistics every five years. However the Census count is generally an under-estimate of the actual population, due to people missed in the Census and people overseas on Census night. To provide a more accurate population figure more frequently, the ABS also produces ERP numbers.

See data notes for a detailed explanation of different population types, how they are calculated and when to use each one.

Estimated Resident Population (ERP)
Year (ending June 30)NumberChange in numberChange in percentCity of Onkaparinga change in percent
20172,893------
20182,953+60+2.07+0.67
20192,977+24+0.81+0.88
20203,044+67+2.25+1.04
20213,085+41+1.35+0.94
20223,148+63+2.04+1.09
20233,145-3-0.10+1.31

Source: Australian Bureau of Statistics, Regional Population Growth, Australia (3218.0). Compiled and presented in profile.id by .id (informed decisions).

Estimated Resident Population (ERP)
Estimated Resident Population (ERP) 2023, Port Noarlunga South: 3,145 2022, Port Noarlunga South: 3,148 2021, Port Noarlunga South: 3,085 2020, Port Noarlunga South: 3,044 2019, Port Noarlunga South: 2,977 2018, Port Noarlunga South: 2,953 2017, Port Noarlunga South: 2,893
Source: Australian Bureau of Statistics, Regional Population Growth, Australia (3218.0). Compiled and presented by .id (informed decisions)
Percentage change in ERP - Port Noarlunga South compared to City of Onkaparinga
Percentage change in ERP - Port Noarlunga South compared to City of Onkaparinga 2023, City of Onkaparinga: +1.3% 2022, City of Onkaparinga: +1.1% 2021, City of Onkaparinga: +0.9% 2020, City of Onkaparinga: +1.0% 2019, City of Onkaparinga: +0.9% 2018, City of Onkaparinga: +0.7% 2023, Port Noarlunga South: -0.1% 2022, Port Noarlunga South: +2.0% 2021, Port Noarlunga South: +1.3% 2020, Port Noarlunga South: +2.3% 2019, Port Noarlunga South: +0.8% 2018, Port Noarlunga South: +2.1%
Source: Australian Bureau of Statistics, Regional Population Growth, Australia (3218.0). Compiled and presented by .id (informed decisions)
Annual change in Estimated Resident Population (ERP)
Annual change in Estimated Resident Population (ERP) 2023, Percentage change: -0.1% 2022, Percentage change: +2.0% 2021, Percentage change: +1.3% 2020, Percentage change: +2.3% 2019, Percentage change: +0.8% 2018, Percentage change: +2.1% 2023, Change in number: -3 2022, Change in number: +63 2021, Change in number: +41 2020, Change in number: +67 2019, Change in number: +24 2018, Change in number: +60
Source: Australian Bureau of Statistics, Regional Population Growth, Australia (3218.0). Compiled and presented by .id (informed decisions)
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