Thornhill
Middle areaNorth Cardiff. 5,689 people in 1.3 square kilometres.
Gigabit coverage by ward
Connected Nations (Ofcom) · January 2026
Under 60%98% or more
There is no gigabit broadband coverage figure for Thornhill’s wards yet.
How Thornhill compares
Each dot is a middle area. The black line marks the middle one.
ThornhillMiddle
Median sale price48 middle areas, Cardiff · 2025
£268,00024th lowest
Population48 middle areas, Cardiff · 2021
5,7002nd lowest
Gigabit broadband coverage48 middle areas, Cardiff · Jan 2026
99.6%4th highest
Claimant rate48 middle areas, Cardiff · Aug 2026
1.7%joint 10th lowest
Figures for the whole of Cardiff
These figures are published for the whole of Cardiff, not for each middle area, so they describe all of Cardiff and not Thornhill alone. See Cardiff
Thornhill in brief
The median price paid for a home in Thornhill was £268,000 in 2025.
Thornhill had 5,700 usual residents at the census.
In Thornhill, 99.6% of homes and businesses could get gigabit-capable broadband in January 2026.
In Thornhill, 1.7% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.