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3218.0 - Regional Population Growth, Australia, 2012-13 Quality Declaration 
Latest ISSUE Released at 11:30 AM (CANBERRA TIME) 03/04/2014   
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GLOSSARY

Australian Standard Geographical Classification (ASGC)

The ASGC was the geographical framework formerly used by the ABS for the collection and dissemination of geographically classified statistics. From 1 July 2011 the ASGC was replaced with the Australian Statistical Geography Standard as the framework for understanding and interpreting the geographical context of ABS statistics, however some statistics will continue to be prepared and disseminated based on the ASGC over a transition period.

Australian Statistical Geography Standard (ASGS)

The ASGS brings all the regions for which the ABS publishes statistics within the one framework and has been in use for the collection and dissemination of geographically classified statistics since 1 July 2011. It is the current framework for understanding and interpreting the geographical context of statistics published by the ABS.

Capital city

Refers to the Greater Capital City Statistical Areas of states and territories as defined in the Australian Statistical Geography Standard.

Commonwealth Electoral Division (CED)

An area legally prescribed for returning one member to the House of Representatives, Australia's Federal Lower House of Parliament. Data for CEDs are approximated by aggregating the data for Statistical Areas Level 1 that best fit the area. Where the Australian Electoral Commission revise their boundaries, the CEDs will be updated on an annual basis in July in conjunction with updates of other ASGS Non-ABS Structures.

Estimated resident population (ERP)

The official measure of the population of Australia, based on the concept of usual residence. It refers to all people, regardless of nationality or citizenship, who usually live in Australia, with the exception of foreign diplomatic personnel and their families. It includes usual residents who are overseas for less than 12 months and excludes overseas visitors who are in Australia for less than 12 months out of a continuous 16 month period.

Greater Capital City Statistical Area (GCCSA)

Represent the socioeconomic area of each of the eight state and territory capital cities. These boundaries are built from aggregations of whole Statistical Areas Level 4. GCCSA boundaries represent a broad socioeconomic definition of each city, they contain not only the urban area of the capital city, but also surrounding and non-urban areas where much of the population has strong links to the capital city, through for example, commuting to work.

Intercensal error / Intercensal difference

The difference between two estimates of a Census year population as at 30 June: the first based on the latest Census and the second produced by updating from the previous Census-based estimates which do not take account of information available from the latest Census.

As previously advised, the ABS will replace the term intercensal error with the term intercensal difference in the 2016 rebasing cycle. This is being done in response to the term 'intercensal error' often being misinterpreted, with the word 'error' being too commonly considered to be a synonym for 'mistake'.

Local Government Area (LGA)

An ABS approximation of an officially gazetted LGA as defined by each state and territory local government department. LGAs cover incorporated areas of Australia, which are legally designated areas for which incorporated local governing bodies have responsibility. The major areas of Australia not administered by incorporated bodies are the northern parts of South Australia and all of the Australian Capital Territory and the Other Territories. These regions are identified as 'Unincorporated' in the ABS LGA structure.

Mesh Block

The smallest geographic region in the Australian Statistical Geography Standard (ASGS) which forms the basis for all larger regions of the ASGS. They broadly identify land use such as residential, commercial, agricultural and parks. There are approximately 347,000 Mesh Blocks and they cover the whole of Australia without gaps or overlaps.

Net undercount

The difference between the actual Census count (including imputations) and an estimate of the number of people who should have been counted in the Census. This estimate is based on the Post Enumeration Survey. For a category of person (eg. based on age, sex and state of usual residence), net undercount is the result of Census undercount, overcount, misclassification and imputation error.

Population growth rate

Population change over a period as a proportion (or percentage) of the population at the beginning of the period.

Post Enumeration Survey (PES)

A household survey conducted three to four weeks after the Census, which allows the ABS to estimate the number of people missed in the Census and the number counted more than once. Usually more people are missed than are counted more than once in Australia, leading to a net undercount. Results from the PES contribute to a more accurate calculation of the estimated resident population on Census night, which is then backdated to 30 June of the Census year.

Rebasing

The 2011 Census of Population and Housing forms the base for newly compiled estimates for 30 June of the Census year, which can be compared with the alternative estimates produced by updating the 2006 Census-based estimates. Of these two estimates, the more recent Census-based estimate is assumed to be the true estimate. To overcome the break in continuity that this implies, population estimates for all years in between the two most recent Censuses are then revised. This complete exercise is known as 'rebasing', as the population estimates are compiled from a new base, the most recent Census.

Recasting

Throughout 2013, the ABS conducted a one-off exercise to revise (recast) population estimates for a longer time period, back to 1991. This was necessary due to a significant improvement in the methodology used to estimate net undercount in the 2011 Census. For more information, refer to the 20 June 2013 release of Australian Demographic Statistics, Feature Article 2: Recasting 20 years of ERP.

Remoteness Area (RA)

An aggregation of non-contiguous geographical areas which share common characteristics of remoteness. The criteria for defining RA boundaries are based on the Accessibility/Remoteness Index of Australia (ARIA+) which measures the remoteness of a point based on the road distance to the nearest urban centre. The RA categories range from Major Cities to Very Remote. Within the Australian Statistical Geography Standard, each RA is created from a grouping of Statistical Areas Level 1 which have a particular degree of remoteness.

Remoteness Structure

This structure is used to classify areas which share common characteristics of remoteness into Remoteness Areas. The degree of remoteness of each area is determined using the Accessibility/Remoteness Index of Australia (ARIA+).

Rest of state

Within each state and territory, the area not defined as being part of the Greater Capital City Statistical Area is represented by a Rest of state region.

Significant Urban Area (SUA)

Aggregations of whole Statistical Areas Level 2 which represent concentrations of urban development with populations of 10,000 people or more. They do not necessarily represent a single Urban Centre, as they can represent a cluster of related Urban Centres with a core urban population over 10,000 people. They can also include related peri-urban and satellite development and the area into which the urban development is likely to expand.

State Electoral Division (SED)

An area legally prescribed for returning one or more members to the State or Territory Lower Houses of Parliament. Data for SEDs are approximated by aggregating the data for Statistical Areas Level 1 that best fit the area. Where the Australian Electoral Commission revise their boundaries, the SEDs will be updated on an annual basis in July in conjunction with updates of other Australian Statistical Geography Standard Non-ABS Structures.

Statistical Area Level 1 (SA1)

An area defined in the Australian Statistical Geography Standard designed as the smallest unit for the release of Census data. They generally have a population of 200 to 800 people, and an average population of about 400 people. SA1s in remote and regional areas generally have smaller populations than those in urban areas. SA1s aggregate to all Non-ABS ASGS Structures except Local Government Areas and Tourism Regions. There are approximately 55,000 SA1s and they cover the whole of Australia without gaps or overlaps. Population estimates are prepared for SA1s by breaking down estimates from the SA2 level.

Statistical Area Level 2 (SA2)

A general-purpose medium-sized area defined in the Australian Statistical Geography Standard built from whole SA1s. Their aim is to represent a community that interacts together socially and economically. SA2s are based on officially gazetted suburbs and localities. In urban areas, SA2s largely conform to one or more whole suburbs, while in rural areas they generally define the functional zone of a regional centre. SA2s generally have a population range of 3,000 to 25,000 people, and an average population of about 10,000 people. There are approximately 2,200 SA2s and they cover the whole of Australia without gaps or overlaps. SA2s are the base unit for preparing sub-state population estimates.

Statistical Area Level 3 (SA3)

An area defined in the Australian Statistical Geography Standard built up from SA2s to provide a standardised regional breakup of Australia. SA3s aim to create a standard framework for the analysis of ABS data at the regional level through clustering groups of whole SA2s that have similar regional characteristics. Their boundaries reflect a combination of widely recognised informal regions as well as existing administrative regions such as State Government Regions in rural areas and Local Government Areas in urban areas. SA3s generally range in population from 30,000 to 130,000 people. There are around 330 SA3s and they cover the whole of Australia without gaps or overlaps.

Statistical Area Level 4 (SA4)

An area defined in the Australian Statistical Geography Standard designed for the output of labour force data and to reflect labour markets. In rural areas SA4s generally represent aggregations of multiple small labour markets with socioeconomic connections or similar industry characteristics. Large regional city labour markets are generally defined by a single SA4. Within major metropolitan labour markets SA4s represent sub-labour markets. SA4s are built from whole SA3s. They generally have a population of over 100,000 people to enable accurate labour force survey data to be generated. There are 88 SA4s and they cover the whole of Australia without gaps or overlaps.

Urban Centre and Locality (UCL)

Aggregations of Statistical Areas Level 1 which represent population centres with populations exceeding 200 persons. Centres with a core urban population of 1,000 persons or more are considered to be Urban Centres, whilst smaller centres with populations of between 200 and 999 people are considered to be Localities.

Usual residence

Usual residence within Australia refers to that address at which the person has lived or intends to live for a total of six months or more in a given reference year.


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