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Castle U2

Neighbourhood

North Belfast. 524 people (mid-2024 estimate) in 0.1 square kilometres.

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Gigabit coverage by neighbourhood

Connected Nations (Ofcom) · January 2026

Under 60%98% or more

In Castle U2, 98.0% of homes and businesses could get gigabit-capable broadband in January 2026.

Population
477
Joint 2,095th least populated of 46,844
ONS Census 2021 · 2021
Gigabit broadband coverage
98.0%
UK 87.8%
Ofcom · Jan 2026
Aged 15 to 64
63.3%
Joint 23,082nd highest of 46,844
ONS Census 2021 · 2021
Aged 65 and over
8.1%
Joint 4,165th 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 U2. See deprivation across Belfast

How Castle U2 compares

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

Castle U2Middle
Population735 neighbourhoods, Belfast · 2021
Population: every neighbourhood in Belfast735 areas from 154 to 2,149. The middle area is 450. Castle U2 is 477.
477joint 318th most populated
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 U2 is 98.0%.
98.0%joint 242nd 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 U2 is 63.3%.
63.3%joint 273rd lowest
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 U2 is 8.1%.
8.1%joint 127th lowest

Is Castle U2 safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Castle U2 at a rate of 131.7 per 1,000 people.

That compares with 127.7 per 1,000 people across Castle U.

Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people.

In August 2026 alone, 7 cases of crime and anti-social behaviour were recorded in Castle U2.

In the 12 months to August 2026, the most common types were violence and sexual offences (23), anti-social behaviour (21) and other crime (9).

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Rates are per resident, so places that many people work in or visit, such as Westminster, the City of London and other city centres, have far higher rates than their residents alone would suggest.

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 U2 alone. See Belfast

Average house price
£184,768
Up 7.7% in a year
HM Land Registry · Aug 2026
Population estimate
351,927
Down 0.1% in a year
ONS population estimates · 2025
Female life expectancy
80.5years
UK 83.0 years
ONS life expectancy · 2022 to 2024
People in radon Affected Area squares
14%
UK 44%
Worked out by Open Index
Castle U2 in brief

Castle U2 had 477 usual residents at the census.

In Castle U2, 98.0% of homes and businesses could get gigabit-capable broadband in January 2026.

63.3% of residents in Castle U2 were aged 15 to 64 at the census.

8.1% of residents in Castle U2 were aged 65 or over at the census.