Derryaghy
WardNorth Lisburn and Castlereagh. About 4,431 people (mid-2024 estimate) in 3.4 square kilometres.
Radon Affected Area by ward
Worked out by Open Index · 2022
About 0% of people in Derryaghy live in a 1 km square that the radon atlas marks as a radon Affected Area.
How Derryaghy compares
Each dot is a ward. The black line marks the middle one.
Is Derryaghy safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Derryaghy at a rate of 60.6 per 1,000 people.
That compares with 52.4 per 1,000 people across Lisburn and Castlereagh.
Across Northern Ireland as a whole, the recorded crime rate was 70.2 per 1,000 people.
In August 2026 alone, 16 cases of crime and anti-social behaviour were recorded in Derryaghy.
In the 12 months to August 2026, the most common types were anti-social behaviour (108), violence and sexual offences (46) and criminal damage and arson (25).
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 Lisburn and Castlereagh
These figures are published for the whole of Lisburn and Castlereagh, not for each ward, so they describe all of Lisburn and Castlereagh and not Derryaghy alone. See Lisburn and Castlereagh
Derryaghy in brief
Derryaghy had 3,823 usual residents at the census.
About 0% of people in Derryaghy live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Derryaghy, 96.5% of homes and businesses could get gigabit-capable broadband in January 2026.
65.2% of residents in Derryaghy were aged 15 to 64 at the census.