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Blackbrook

Middle area

Central St. Helens. 9,133 people in 1.8 square kilometres.

Open in map

Radon Affected Area by middle area

Worked out by Open Index · 2022

Under 1%90% or more

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

Median sale price
£170,000
Joint 810th cheapest of 7,259
Worked out by Open Index
Population
9,259
Joint 1,850th most populated of 9,448
ONS Census 2021 · 2021
People in radon Affected Area squares
100%
UK 44%
Worked out by Open Index
Gigabit broadband coverage
99.8%
UK 87.8%
Ofcom · Jan 2026

Recorded crime in Blackbrook

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Blackbrook at a rate of 78.8 per 1,000 people.

That compares with 94.3 per 1,000 people across St. Helens.

Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.

Recorded by police, 12 months to August 2026
Kind of crimeRecorded
Violence and sexual offences336
Other crime111
Anti-social behaviour88
Criminal damage and arson73
Shoplifting33
Drug offences32
Burglary21
Vehicle crime20
Robbery5
Theft from the person1

Source: police.uk, 12 months to August 2026

How Blackbrook compares

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

BlackbrookMiddle
Median sale price24 middle areas, St. Helens · 2025
Median sale price: every middle area in St. Helens24 areas from £128,750 to £265,750. The middle area is £190,000. Blackbrook is £170,000.
£170,0006th cheapest
Population24 middle areas, St. Helens · 2021
Population: every middle area in St. Helens24 areas from 5,443 to 11,883. The middle area is 7,117. Blackbrook is 9,259.
9,2596th most populated
People in radon Affected Area squares24 middle areas, St. Helens · 2022
People in radon Affected Area squares: every middle area in St. Helens24 areas from 0.0% to 100.0%. The middle area is 90.0%. Blackbrook is 100.0%.
100%joint most people in radon Affected Areas
Gigabit broadband coverage24 middle areas, St. Helens · Jan 2026
Gigabit broadband coverage: every middle area in St. Helens24 areas from 86.8% to 99.8%. The middle area is 97.1%. Blackbrook is 99.8%.
99.8%joint highest

Is Blackbrook safe? What police records show

In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Blackbrook at a rate of 78.8 per 1,000 people.

That compares with 94.3 per 1,000 people across St. Helens.

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

In August 2026 alone, 54 cases of crime and anti-social behaviour were recorded in Blackbrook.

In the 12 months to August 2026, the most common types were violence and sexual offences (336), other crime (111) and anti-social behaviour (88).

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 St. Helens

These figures are published for the whole of St. Helens, not for each middle area, so they describe all of St. Helens and not Blackbrook alone. See St. Helens

Average house price
£185,154
Up 7.3% in a year
HM Land Registry · Jul 2026
Median full-time pay
£37,306
136th lowest paid of 348
ONS earnings survey · 2025
House price to pay
5.0×
Joint 43rd most affordable of 348
Worked out by Open Index
Deprivation score
29.0
46th most deprived of 296
MHCLG · England only
Blackbrook in brief

The median price paid for a home in Blackbrook was £170,000 in 2025.

Blackbrook had 9,259 usual residents at the census.

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

In Blackbrook, 99.8% of homes and businesses could get gigabit-capable broadband in January 2026.