Castle A1
NeighbourhoodNorth Belfast. 534 people (mid-2024 estimate) in 0.6 square kilometres.
Gigabit coverage by neighbourhood
Connected Nations (Ofcom) · January 2026
In Castle A1, 97.3% 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 A1. See deprivation across Belfast
How Castle A1 compares
Each dot is a neighbourhood. The black line marks the middle one.
What is the population of Castle A1?
Castle A1 had 517 usual residents at the census.
Castle A1 is the joint 2,829th least populated of 46,844 in the UK.
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
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.