Census Data

Colchester: NS-SeC

Location Type: Non-metropolitan Districts, ONS Geographic Code: E07000071

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Key Facts

All Residents 192,715
Male 94,267
Female 98,448
Households 79,710
Population Density (people/km2) 587.2
Table Codets062
Unit of MeasurePerson
Number of Response Options10

This dataset provides Census 2021 estimates that classify usual residents aged 16 years and over in England and Wales by National Statistics Socio-economic Classification (NS-SEC). The estimates are as at Census Day, 21 March 2021.


The National Statistics Socio-economic Classification (NS-SEC) indicates a person's socio-economic position based on their occupation and other job characteristics.

It is an Office for National Statistics standard classification. NS-SEC categories are assigned based on a person's occupation, whether employed, self-employed, or supervising other employees.

Full-time students are recorded in the "full-time students" category regardless of whether they are economically active.

Quality Statement

As Census 2021 was during a unique period of rapid change, take care when using this data for planning purposes.
Read more in our Labour market quality information for Census 2021 methodology.

National Statistics Socio-economic Classification (NS-SEC): Total: All usual residents aged 16 years and over 156,339
L1, L2 and L3 Higher managerial, administrative and professional occupations 20,691
L4, L5 and L6 Lower managerial, administrative and professional occupations 33,719
L7 Intermediate occupations 18,400
L8 and L9 Small employers and own account workers 16,678
L10 and L11 Lower supervisory and technical occupations 7,937
L12 Semi-routine occupations 18,530
L13 Routine occupations 15,430
L14.1 and L14.2 Never worked and long-term unemployed 9,995
L15 Full-time students 14,959

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