Census of Population and Housing 1986: Statistical Local Area Summary File (Usual Residence) Summary File

What is the USLASF?

Dimensions of the data set

Record structure

Indicative Information and Data Code Groups

Description of the summary tables

Download an .rtf version of documents related to the USLASF

What is the USLASF?

The Statistical Local Area Summary File (Usual Residence) summarises selected characteristics of persons, families and dwellings as collected from the Census of Population and Housing, 30 June 1986: and allows the aggregation of any combination of Statistical Local Areas. The USLASF is similar to the Local Government Area Summary Files produced for the 1976 and 1981 censuses, except that it is presented on a place of usual residence basis rather than place of enumeration. Two versions of the Statistical Local Area Summary File have been produced from the 1986 Census: one on a place of enumeration basis; and the other on a place of usual residence basis. This document describes the usual residence version only.

The File contains, for each SLA, a series of counts of census characteristics of persons, families and dwellings grouped to form 28 statistical tables.

Small non-zero cells on this file have been randomly adjusted in an unbiased manner to avoid the release of identifiable data. This introduced error, in addition to possible respondent and processing errors, means that no significance can be attached to cells of three or less. Some of the small area summary tables which are finely classified are dominated by small cells, and for areas with a population of less than 100 persons are not of sufficient statistical value to warrant their being published on microfiche. However, the data remain on the USLASF for use in aggregating to larger areas.

Random adjustment of small area data has also the following effects:

  1. more accurate statistics for SLAs will be obtained directly from the USLASF than from aggregations of the Collection District Summary File (which contains a larger number of adjusted cells); and

  2. totals between tables may not always be consistent.

Dimensions of the data set

The USLASF consists of 1355 logical records, one for each Statistical Local Area. Each logical record contains one record of geographic indicative information and 17 records containing counts or totals grouped to form 28 tables.

Codebook

Record Structure

For each SLA on the USLASF, there are 18 records, each 372 characters long.

The 18 records for each SLA are identified by a two character record type field containing the values 00-17. Record type 00 contains geographic indicative information for the SLA in a format described below. Record types 01-17 contain the summary data for the SLA. A later section describes the format of the summary data in more detail.

For some basic information about the way Census 86 was planned, designed, executed and processed, information on the person and dwelling characteristics included in statistical output and some guidance to other census products, see "Census 86 - How Australia Takes a Census".

Indicative information

The type 00 record is called the geographic indicative record, and contains additional information to identify the SLA in relation to other geographic areas.

The structure of this record is as follows:

Description of the Summary Tables

The USLASF contains data from 18 summary tables which present characteristics of persons, families and dwellings for each SLA in Australia. The tabulation basis is place of usual residence.

The 18 records for each SLA are identified by a two character record type field containing the values 00-17. Record type 00 contains geographic indicative information for the SLA in a format described above. Record types 01-17 contain the summary data for the SLA.

Full details of the tables and cells are given in "Condensed Format Statistical Local Area (Usual Residence) Summary Tables Description File" (download .rtf version) . The data cell values commence at 1, incrementing by 1 for each cell until 1016 is reached.

Cell numbers 439,442,445,448,457,460,463 and 466 are null cells due to change in design of the database and are set to zero.

These 1016 cells are stored in record types 01 - 17. Each record consists of a 12 character header (containing the SLA indicative and record type indicator) followed by 60 cells each 6 characters long (12 + 60 x 6 = 372, the record length).

Record type 01 contains cells 1 - 60
Record type 02 contains cells 61 - 120
Record type 03 contains cells 121 - 180

to

Record type 17 contains cells 961 - 1016 (i.e. the first 56 cells)

The remaining 4 cells in record type 17 are filled with `9'.

The structure of the data records is as follows:

Field numberStart positionLengthName
111State
224Statistical local area code
362Record type
485Filler
4 + J7 + 6J6Cell (J) (J = 1 to 60)

For record type I (I = 01 to 17) and cell J (J = 1 to 60) within record I, the corresponding cell number N (N = 1 to 1016) is N = (I - 1) x 60 + J.

When N = 1016, I = 17 and J = 56, as there are only 1016 defined cells, the remaining cells J = 57 to 60 in record type 17 are filled with `9'.

The populations covered by each table are as follows:

TableDimensionsNumbers of cellsDescriptionTable population
U012 x 24Summary of personsTotal persons
U0232 x 264Age in yearsTotal persons
U035 x 210Marital statusPersons aged 15 and over
U044 x 28Usual residenceTotal persons
U0518 x 236Usual residence, pre 1986Australian residents 1985, Australian residents 1981
U0620 x 240BirthplaceTotal persons
U0711 x 333Birthplace of overseas born by period of residenceOverseas born persons
U087 x 321Proficiency in English by agePersons aged 5 and over born in non English speaking countries
U0914 x 228Language other than English spoken at home Persons aged 5 and over who speak a language other than English at home
U1011 x 11121Birth place of parents of Australian born personsAustralian born persons
U1113 x 226ReligionTotal persons
U124 x 28Aboriginals and Torres Strait IslandersTotal persons
U136 x 212Age of Aboriginals and Torres Strait IslandersAboriginals and Torres Strait Islanders
U1410 x 220Age left schoolPersons aged 15 and over
U1518 x 236Type of educational institution being attendedPersons attending an educational institution
U166 x 212Level of qualificationPersons aged 15 and over
U1718 x 236Field of qualificationPersons aged 15 and over
U183 x 824Marital status of labour force by agePersons aged 15 and over
U198 x 864Labour force status by agePersons aged 15 and over
U2010 x 880Occupation by ageEmployed labour force
U2114 x 8112Industry by ageEmployed labour force
U2215 x 230Individual income (annual)Persons aged 15 and over
U2312 x 224Method of travel to workEmployed labour force
U2410 x 330Occupation by birthplaceEmployed labour force
U2514 x 570Industry by hours workedEmployed labour force
U2610 x 440Occupation by status of workerEmployed labour force
U275 x 210Industry sectorEmployed labour force
U285 x 2 + 714Hours workedEmployed labour force

 

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