Isle of Anglesey

Wales · Wales
-15.0pp WBI 96.3% → 81.3% by 2051 (v2, SNPP-constrained, bias-corrected)
68,879 Population (2021 Census)
96.3% White British (2021)
87.2% White British (2041 projected)
81.3% White British (2051 projected)

Ethnic composition

Census 2021 observed data with Hamilton-Perry projections to 2061.

white british 96.3%
white other 1.8%
asian 0.6%
black 0.5%
mixed 0.5%
other 0.2%

Projected 2051

white british 81.3%
white other 5.3%
asian 6.0%
black 2.6%
mixed 2.8%
other 2.1%

What's driving change?

Shift-share decomposes demographic change into national trend, structural composition, and local factors. Dominant driver: local migration.

-0.2pp Total WBI change
-6.4pp National effect
-1.3pp Structural effect
+7.4pp Local effect

Diversity index

low diversity Shannon entropy: 0.12 · Dissimilarity: 21.8

Religion

Census 2021 religious composition with projections.

2021 [object Object]
2031 [object Object]
2041 [object Object]
2051 [object Object]

Country of birth

UK-born (2021) 96.7%
Foreign-born (2021) 3.3%
Foreign-born (2051 projected) 12.6%

English proficiency

mainLanguageEnglishPct 99.1%
notEnglishPct 1.9%
cannotSpeakEnglishPct 0.0%

Service demand pressure

20/100 Stable Rank 281 of 320
Ethnic change14/20
Asylum2/20
School0/20
Language0/20
Housing5/20

Economic profile

Avg employment rate53.4%
Avg home ownership67.8%
Avg social rent15.5%
Degree or above31.9%
No qualifications17.8%

Housing demand projection

Census 2021 tenure patterns by ethnicity, projected to 2041 from demographic composition change.

Ownership (2021)67.8%
Social rent (2021)15.5%
Private rent (2021)15.6%
Ownership (2041)64.1%
Social rent (2041)14.7%
Social rent change-0.8pp

Housing demand growth from demographic change is moderate.

English proficiency

mainLanguageEnglishPct 99.1%
notEnglishPct 1.9%
cannotSpeakEnglishPct 0.0%
Projected non-English growth+9.1pp

Interpreter demand is manageable at current levels.

Updated 14 Apr 2026 · Census 2021, ONS SNPP, DfE School Census