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Castle Cary

Ward

East Somerset. About 10,954 people (mid-2024 estimate) in 124 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 83% of people in Castle Cary live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
10,550
2,211th most populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
83%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
85.9%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
1.5%
UK 3.9%
ONS via Nomis · Aug 2026

How Castle Cary compares

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

Castle CaryMiddle
Population55 wards, Somerset · 2021
Population: every ward in Somerset55 areas from 7,922 to 13,128. The middle area is 10,418. Castle Cary is 10,550.
10,55023rd most populated
People in radon Affected Area squares55 wards, Somerset · 2022
People in radon Affected Area squares: every ward in Somerset55 areas from 0.0% to 100.0%. The middle area is 62.0%. Castle Cary is 83.0%.
83%joint 19th most people in radon Affected Areas
Gigabit broadband coverage55 wards, Somerset · Jan 2026
Gigabit broadband coverage: every ward in Somerset55 areas from 22.1% to 99.6%. The middle area is 82.3%. Castle Cary is 85.9%.
85.9%23rd highest
Claimant rate55 wards, Somerset · Aug 2026
Claimant rate: every ward in Somerset55 areas from 1.5% to 4.5%. The middle area is 2.3%. Castle Cary is 1.5%.
1.5%joint lowest

Is Castle Cary safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Castle Cary at a rate of 51.2 per 1,000 people.

That compares with 90.4 per 1,000 people across Somerset.

Across England as a whole, the recorded crime rate was 96.3 per 1,000 people.

In August 2026 alone, 44 cases of crime and anti-social behaviour were recorded in Castle Cary.

In the 12 months to August 2026, the most common types were violence and sexual offences (285), other crime (138) and criminal damage and arson (55).

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 Somerset

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

Average house price
£282,062
Up 3.1% in a year
HM Land Registry · Jul 2026
Median full-time pay
£36,279
103rd lowest paid of 348
ONS earnings survey · 2025
House price to pay
7.8×
Joint 143rd least affordable of 348
Worked out by Open Index
Deprivation score
19.1
Joint 143rd most deprived of 296
MHCLG · England only
Castle Cary in brief

Castle Cary had 10,550 usual residents at the census.

About 83% of people in Castle Cary live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Castle Cary, 85.9% of homes and businesses could get gigabit-capable broadband in January 2026.

In Castle Cary, 1.5% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.