Editing Derry (section)

===2021 Census===
On census day (21 March 2021) there were 85,279 people living in Derry City<ref>{{Cite web |title=Preview data for Population {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref> and of these:

* 21.11% were aged under 16, 64.36% were aged between 16 and 65 and 14.53% were aged 66 and over.<ref>{{Cite web |title=Preview data for Age {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=AGE_BAND_AGG3&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk |archive-date=29 March 2024 |archive-url=https://web.archive.org/web/20240329234517/https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=AGE_BAND_AGG3&~SETTLEMENT15=N11000243 |url-status=dead}}</ref>
* 51.65% of the usually resident population were female and 48.35% were male.<ref>{{Cite web |title=Preview data for Sex (MS-A07) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=UR_SEX&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref>
* 77.88% (66,413) were from a Catholic background, 16.98% (14,481) were from Protestant and Other Christian (including Christian related) background, 1.24% had another religious background and 3.9% had no religion.<ref>{{cite web |title=Religion belong to or brought up in |url=https://build.nisra.gov.uk/en/custom/data?d=PEOPLE&v=SETTLEMENT15&v=RELIGION_BELONG_TO_OR_BROUGHT_UP_IN_DVO&%7ESETTLEMENT15=N11000243 |work=NISRA |access-date=15 August 2023}}</ref>
* 64.55% indicated they had an Irish national identity,<ref>{{Cite web |title=Preview data for National Identity (Irish) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=NAT_ID_IRISH_AGG3&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref> 21.86% indicated they had a Northern Irish national identity,<ref>{{Cite web |title=Preview data for National Identity (Northern Irish) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=NAT_ID_NORTHERN_IRISH_AGG3&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref> 17.37% indicated they had a British national identity,<ref>{{Cite web |title=Preview data for National Identity (British) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=NAT_ID_BRITISH&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref> and 4.01% indicated they had an 'other' national identity.<ref>{{Cite web |title=Preview data for National identity (person based) – basic detail (classification 1) (MS-B15) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=NAT_ID_BASIC&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref> (respondents could select more than one national identity).
* 16.42% had some knowledge of [[Irish language|Irish]] (Gaeilge) and 4.22% had some knowledge of [[Ulster Scots dialect|Ulster Scots]].<ref>{{Cite web |title=Preview data for Knowledge of Irish (MS-B05) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=IRISH_SKILLS_INTERMEDIATE&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref><ref>{{Cite web |title=Preview data for Knowledge of Ulster-Scots (MS-B08) {{!}} NISRA Flexible Table Builder |url=https://build.nisra.gov.uk/en/custom/viewdata?d=PEOPLE&v=SETTLEMENT15&v=ULSTER_SCOTS_SKILLS_INTERMEDIATE&~SETTLEMENT15=N11000243 |access-date=2024-03-29 |website=build.nisra.gov.uk}}</ref>