Age of arrival in the UK classifications: Census 2021

Use these groups of categories to research and analyse Census 2021 age of arrival in the UK data.

Last updated:
25 September 2023

Applicability: Person
Type: Derived variable

Overview

The age of arrival in the UK variable has three classifications that can be used when analysing Census 2021 data.

When data are sorted, we group categories about the same topic together into a variable. A group of categories is called a “classification.” There can be more than one classification about the same topic and each one is different. You should choose the one that is the most suitable for your research and analysis.

Age of arrival in the UK classification 23a

Mnemonic: age_arrival_uk_23a

Total number of categories: 23

Code Name
1 Born in the UK
2 Arrived in the UK: Aged 0 to 4 years
3 Arrived in the UK: Aged 5 to 7 years
4 Arrived in the UK: Aged 8 to 9 years
5 Arrived in the UK: Aged 10 to 14 years
6 Arrived in the UK: Aged 15 years
7 Arrived in the UK: Aged 16 to 17 years
8 Arrived in the UK: Aged 18 to 19 years
9 Arrived in the UK: Aged 20 to 24 years
10 Arrived in the UK: Aged 25 to 29 years
11 Arrived in the UK: Aged 30 to 34 years
12 Arrived in the UK: Aged 35 to 39 years
13 Arrived in the UK: Aged 40 to 44 years
14 Arrived in the UK: Aged 45 to 49 years
15 Arrived in the UK: Aged 50 to 54 years
16 Arrived in the UK: Aged 55 to 59 years
17 Arrived in the UK: Aged 60 to 64 years
18 Arrived in the UK: Aged 65 to 69 years
19 Arrived in the UK: Aged 70 to 74 years
20 Arrived in the UK: Aged 75 to 79 years
21 Arrived in the UK: Aged 80 to 84 years
22 Arrived in the UK: Aged 85 years and over
-8 Does not apply*

*Students and schoolchildren living away during term-time.

Age of arrival in the UK classification 18a

Mnemonic: age_arrival_uk_18a

Total number of categories: 18

Code Name
1 Born in the UK
2 Arrived in the UK: Aged 0 to 4 years
3 Arrived in the UK: Aged 5 to 7 years
4 Arrived in the UK: Aged 8 to 9 years
5 Arrived in the UK: Aged 10 to 14 years
6 Arrived in the UK: Aged 15 years
7 Arrived in the UK: Aged 16 to 17 years
8 Arrived in the UK: Aged 18 to 19 years
9 Arrived in the UK: Aged 20 to 24 years
10 Arrived in the UK: Aged 25 to 29 years
11 Arrived in the UK: Aged 30 to 44 years
12 Arrived in the UK: Aged 45 to 59 years
13 Arrived in the UK: Aged 60 to 64 years
14 Arrived in the UK: Aged 65 to 74 years
15 Arrived in the UK: Aged 75 to 84 years
16 Arrived in the UK: Aged 85 to 89 years
17 Arrived in the UK: Aged 90 years and over
-8 Does not apply*

*Students and schoolchildren living away during term-time.

Age of arrival in the UK classification 8a

Mnemonic: age_arrival_uk_8a

Total number of categories: 8

Code Name
1 Born in the UK
2 Arrived in the UK: Aged 0 to 15 years
3 Arrived in the UK: Aged 16 to 24 years
4 Arrived in the UK: Aged 25 to 34 years
5 Arrived in the UK: Aged 35 to 49 years
6 Arrived in the UK: Aged 50 to 64 years
7 Arrived in the UK: Aged 65 years and over
-8 Does not apply*

*Students and schoolchildren living away during term-time.