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Onslow

Ward

South west Guildford. About 9,387 people (mid-2024 estimate) in 2.0 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 68% of people in Onslow live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
8,874
Joint 2,974th most populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
68%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
88.0%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
1.5%
UK 3.9%
ONS via Nomis · Aug 2026

How Onslow compares

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

OnslowMiddle
Population21 wards, Guildford · 2021
Population: every ward in Guildford21 areas from 2,590 to 10,620. The middle area is 6,578. Onslow is 8,874.
8,8745th most populated
People in radon Affected Area squares21 wards, Guildford · 2022
People in radon Affected Area squares: every ward in Guildford21 areas from 0.0% to 100.0%. The middle area is 33.0%. Onslow is 68.0%.
68%7th most people in radon Affected Areas
Gigabit broadband coverage21 wards, Guildford · Jan 2026
Gigabit broadband coverage: every ward in Guildford21 areas from 20.1% to 99.1%. The middle area is 81.6%. Onslow is 88.0%.
88.0%10th highest
Claimant rate21 wards, Guildford · Aug 2026
Claimant rate: every ward in Guildford21 areas from 1.3% to 4.6%. The middle area is 1.7%. Onslow is 1.5%.
1.5%joint 5th lowest

Is Onslow safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Onslow at a rate of 204.4 per 1,000 people.

That compares with 80.6 per 1,000 people across Guildford.

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

In August 2026 alone, 183 cases of crime and anti-social behaviour were recorded in Onslow.

In the 12 months to August 2026, the most common types were violence and sexual offences (851), other crime (386) and anti-social behaviour (247).

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 Guildford

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

Average house price
£532,917
Down 2.2% in a year
HM Land Registry · Jul 2026
Median full-time pay
£46,801
33rd highest paid of 348
ONS earnings survey · 2025
House price to pay
11.4×
28th least affordable of 348
Worked out by Open Index
Deprivation score
9.5
Joint 15th least deprived of 296
MHCLG · England only
Onslow in brief

Onslow had 8,874 usual residents at the census.

About 68% of people in Onslow live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Onslow, 88.0% of homes and businesses could get gigabit-capable broadband in January 2026.

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