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Castleton

Ward

South west Rochdale. About 11,066 people (mid-2024 estimate) in 8.0 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 97% of people in Castleton live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
10,459
Joint 2,258th most populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
97%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
96.5%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
5.8%
UK 3.9%
ONS via Nomis · Aug 2026

How Castleton compares

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

CastletonMiddle
Population20 wards, Rochdale · 2021
Population: every ward in Rochdale20 areas from 9,373 to 12,833. The middle area is 11,213. Castleton is 10,459.
10,4595th least populated
People in radon Affected Area squares20 wards, Rochdale · 2022
People in radon Affected Area squares: every ward in Rochdale20 areas from 29.0% to 100.0%. The middle area is 100.0%. Castleton is 97.0%.
97%joint 6th fewest people in radon Affected Areas
Gigabit broadband coverage20 wards, Rochdale · Jan 2026
Gigabit broadband coverage: every ward in Rochdale20 areas from 78.3% to 99.3%. The middle area is 94.5%. Castleton is 96.5%.
96.5%joint 4th highest
Claimant rate20 wards, Rochdale · Aug 2026
Claimant rate: every ward in Rochdale20 areas from 1.9% to 11.0%. The middle area is 5.6%. Castleton is 5.8%.
5.8%10th highest

What is the population of Castleton?

Castleton had 10,459 usual residents at the census.

Castleton is the joint 2,258th most populated of 8,397 in the UK.

Figures for the whole of Rochdale

These figures are published for the whole of Rochdale, not for each ward, so they describe all of Rochdale and not Castleton alone. See Rochdale

Average house price
£209,389
Up 4.5% in a year
HM Land Registry · Jul 2026
Median full-time pay
£34,660
46th lowest paid of 348
ONS earnings survey · 2025
House price to pay
6.0×
Joint 93rd most affordable of 348
Worked out by Open Index
Deprivation score
34.3
17th most deprived of 296
MHCLG · England only
Castleton in brief

Castleton had 10,459 usual residents at the census.

About 97% of people in Castleton live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Castleton, 96.5% of homes and businesses could get gigabit-capable broadband in January 2026.

In Castleton, 5.8% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.