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Chalk

Ward

North Gravesham. About 2,980 people (mid-2024 estimate) in 4.5 square kilometres.

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Radon Affected Area by ward

Worked out by Open Index · 2022

Under 1%90% or more

About 100% of people in Chalk live in a 1 km square that the radon atlas marks as a radon Affected Area.

Population
2,920
1,036th least populated of 8,397
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
97.2%
UK 87.8%
Ofcom · Jan 2026
Claimant rate
2.8%
UK 3.9%
ONS via Nomis · Aug 2026

How Chalk compares

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

ChalkMiddle
Population17 wards, Gravesham · 2021
Population: every ward in Gravesham17 areas from 2,920 to 9,648. The middle area is 6,013. Chalk is 2,920.
2,920least populated
People in radon Affected Area squares17 wards, Gravesham · 2022
People in radon Affected Area squares: every ward in Gravesham17 areas from 71.0% to 100.0%. The middle area is 100.0%. Chalk is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage17 wards, Gravesham · Jan 2026
Gigabit broadband coverage: every ward in Gravesham17 areas from 58.7% to 99.4%. The middle area is 89.5%. Chalk is 97.2%.
97.2%6th highest
Claimant rate17 wards, Gravesham · Aug 2026
Claimant rate: every ward in Gravesham17 areas from 1.4% to 8.0%. The middle area is 4.2%. Chalk is 2.8%.
2.8%6th lowest

Is Chalk safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Chalk at a rate of 44.9 per 1,000 people.

That compares with 92.3 per 1,000 people across Gravesham.

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

In August 2026 alone, 9 cases of crime and anti-social behaviour were recorded in Chalk.

In the 12 months to August 2026, the most common types were violence and sexual offences (31), anti-social behaviour (19) and other crime (18).

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 Gravesham

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

Average house price
£344,923
Up 3.3% in a year
HM Land Registry · Jul 2026
Median full-time pay
£42,199
100th highest paid of 348
ONS earnings survey · 2025
House price to pay
8.2×
Joint 123rd least affordable of 348
Worked out by Open Index
Deprivation score
23.6
97th most deprived of 296
MHCLG · England only
Chalk in brief

Chalk had 2,920 usual residents at the census.

About 100% of people in Chalk live in a 1 km square that the radon atlas marks as a radon Affected Area.

In Chalk, 97.2% of homes and businesses could get gigabit-capable broadband in January 2026.

In Chalk, 2.8% of residents aged 16 to 64 were claiming out-of-work benefits in August 2026.