Census by Geographic County

Geographic county profile

Antrim

Northern Ireland — northern-ireland-census-2021-v1. The county dossier covers geographic history and place; this profile presents detailed contemporary Census statistics. Open the interactive map.

At a glance

Population: 645,351
Population density
Aged 65+: 16.59%

Census context within Northern Ireland. Ranks descend by value; equal values share a rank and names sort alphabetically only for deterministic table order.
Measure	Value	Jurisdiction rank
Population	645,351	1 of 6
Population density		2 of 6
Aged 65+	16.59%	4 of 6

View all 14 Census measures

Available Census observations
Topic	Measure	Value
Population & demography	Aged 0–14	18.47%
Population & demography	Aged 65+	16.59%
Population & demography	Population density
Health, disability & care	Good or very good health	77.47%
Households & relationships	Households with dependent children	29.64%
Households & relationships	Lone-parent households	16.08%
Households & housing	Households with no car or van	24.26%
Migration & mobility	Born outside the UK	8.28%
Households & housing	Owner-occupied households	61.77%
Population & demography	Population	645,351
Households & housing	Private rented	16.78%
Work, education & travel	Level 4+ qualifications	30.78%
Households & housing	Social rented	19.25%
Migration & mobility	Born in the UK	91.72%

Sources and methodology

Observations come from the versioned Northern Ireland Census adapter release. Use the release-specific source notes before drawing cross-jurisdiction conclusions.

Change over time

Historical observations are shown in Census-year order. Published change is limited to the declared release pairs; this is not an annual series.

Published Census history for Antrim

Measure	2001 Census	2011 Census	2021 Census	Published change
Usual resident population	585,298	614,688	645,351	2001 to 201129,3905.02% 2011 to 202130,6634.99%
Usual resident population density				2001 to 201125.0 people per sq mi (9.66 people per km²)5.02% 2011 to 202126.1 people per sq mi (10.08 people per km²)4.99%
Residents aged 65 and over	13.50%	14.72%	16.59%	2001 to 20111.22 percentage points 2011 to 20211.87 percentage points
Households with no car or van	31.75%	27.91%	24.26%	2001 to 2011Household observations retain the published all-households denominator and category wording; no public change pair is published. 2011 to 2021Household category definitions and disclosure control differ by release; observations are informative but no public change artefact is permitted.
Owner-occupied households	64.26%	63.55%	61.77%	2001 to 2011Shared ownership, social rent, other rent and rent-free categories are excluded; no public change pair is published. 2011 to 2021Household category definitions and disclosure control differ by release; observations are informative but no public change artefact is permitted.
Private-rented households	6.80%	13.04%	16.78%	2001 to 2011Other rent, social rent, shared ownership and rent-free categories are excluded; no public change pair is published. 2011 to 2021Household category definitions and disclosure control differ by release; observations are informative but no public change artefact is permitted.

Historical sources and methodology: 2001 to 2011

Historical release: Northern Ireland Census 2001 (ni-census-2001-v2). Official source: Northern Ireland Statistics and Research Agency Census 2001 KS01, KS02, KS17 and KS18.

Official Census small-area data are reproducibly allocated to the fixed Definition A geographic counties using the locked historical methodology. Source statistical areas are not themselves geographic counties.

Paired current release: Northern Ireland Census 2011 (ni-census-2011-v1). Official source: Northern Ireland Statistics and Research Agency Census 2011.

Comparability: Comparable with qualifications.

Historical sources and methodology: 2011 to 2021

Historical release: Northern Ireland Census 2011 (ni-census-2011-v1). Official source: Northern Ireland Statistics and Research Agency Census 2011.

Paired current release: Northern Ireland Census 2021 (northern-ireland-census-2021-v1). Official source: NISRA Census 2021.

Comparability: Comparable with qualifications.

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Choose a county for its release-specific profile. This provides a non-map way to select any available county.

Sources, releases and methodology

England and Wales — Census 2021 (ONS Census 2021 via Nomis bulk data)
Scotland — Census 2022 (NRS / Scotland's Census 2022)
Northern Ireland — Census 2021 (NISRA Census 2021)

Versioned provenance and adapter artifacts support these values. The map is Definition A geometry simplified only for thematic display.