Castle J5
NeighbourhoodNorth Belfast. 527 people (mid-2024 estimate) in 0.5 square kilometres.
Gigabit coverage by neighbourhood
Connected Nations (Ofcom) · January 2026
In Castle J5, 98.8% of homes and businesses could get gigabit-capable broadband in January 2026.
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 J5. See deprivation across Belfast
How Castle J5 compares
Each dot is a neighbourhood. The black line marks the middle one.
Is Castle J5 safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Castle J5 at a rate of 45.5 per 1,000 people.
That compares with 40.7 per 1,000 people across Castle J.
Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people.
In August 2026 alone, 1 case of crime and anti-social behaviour was recorded in Castle J5.
In the 12 months to August 2026, the most common types were anti-social behaviour (7), violence and sexual offences (5) and other crime (4).
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 J5 alone. See Belfast
Castle J5 in brief
Castle J5 had 516 usual residents at the census.
In Castle J5, 98.8% of homes and businesses could get gigabit-capable broadband in January 2026.
65.3% of residents in Castle J5 were aged 15 to 64 at the census.
15.5% of residents in Castle J5 were aged 65 or over at the census.