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Castle A1

Neighbourhood

North Belfast. 534 people in 0.6 square kilometres.

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Gigabit coverage by neighbourhood

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In Castle A1, 97.3% of homes and businesses could get gigabit-capable broadband in January 2026.

Population
517
2,829th lowest of 46,844
ONS Census 2021 · 2021
Gigabit broadband coverage
97.3%
UK 87.8%
Ofcom · Jan 2026
Aged 15 to 64
67.1%
11,842nd highest of 46,844
ONS Census 2021 · 2021
Aged 65 and over
15.6%
17,108th lowest of 46,844
ONS Census 2021 · 2021

Northern Ireland Multiple Deprivation Measure 2017 is published for the Super Output Areas (2001), whose boundaries differ from this neighbourhood’s, so it has no figure for Castle A1. See deprivation across Belfast

How Castle A1 compares

Each dot is a neighbourhood. The black line marks the middle one.

Castle A1Middle
Population735 neighbourhoods, Belfast · 2021
Population: every neighbourhood in Belfast735 areas from 154 to 2,149. The middle area is 450. Castle A1 is 517.
517joint 246th highest
Gigabit broadband coverage735 neighbourhoods, Belfast · Jan 2026
Gigabit broadband coverage: every neighbourhood in Belfast735 areas from 48.0% to 100.0%. The middle area is 99.2%. Castle A1 is 97.3%.
97.3%joint 207th lowest
Aged 15 to 64735 neighbourhoods, Belfast · 2021
Aged 15 to 64: every neighbourhood in Belfast735 areas from 28.0% to 97.3%. The middle area is 65.1%. Castle A1 is 67.1%.
67.1%joint 281st highest
Aged 65 and over735 neighbourhoods, Belfast · 2021
Aged 65 and over: every neighbourhood in Belfast735 areas from 0.1% to 67.8%. The middle area is 14.7%. Castle A1 is 15.6%.
15.6%joint 325th highest

Figures for the whole of Belfast

These figures are published for the whole of Belfast, not for each neighbourhood, so they describe all of Belfast and not Castle A1 alone. See Belfast

Average house price
£184,768
Up 7.7% in a year
HM Land Registry · Jul 2026
Female life expectancy
80.5years
UK 83.0 years
ONS life expectancy · 2022 to 2024
Full-fibre broadband coverage
92.3%
UK 81.0%
Ofcom · Jan 2026
Claimant rate
3.9%
UK 3.9%
ONS via Nomis · Aug 2026
Castle A1 in brief

Castle A1 had 517 usual residents at the census.

In Castle A1, 97.3% of homes and businesses could get gigabit-capable broadband in January 2026.

67.1% of residents in Castle A1 were aged 15 to 64 at the census.

15.6% of residents in Castle A1 were aged 65 or over at the census.