Shenley & South Mimms
Middle areaNorth Hertsmere. 5,323 people (mid-2024 estimate) in 35 square kilometres.
Radon Affected Area by middle area
Worked out by Open Index · 2022
About 43% of people in Shenley & South Mimms live in a 1 km square that the radon atlas marks as a radon Affected Area.
Recorded crime in Shenley & South Mimms
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Shenley & South Mimms at a rate of 125.7 per 1,000 people.
That compares with 89.1 per 1,000 people across Hertsmere.
Worked out by Open Index from police.uk crime records and ONS and NISRA population estimates.
| Kind of crime | Recorded |
|---|---|
| Other crime | 301 |
| Violence and sexual offences | 127 |
| Anti-social behaviour | 101 |
| Vehicle crime | 48 |
| Criminal damage and arson | 36 |
| Drug offences | 19 |
| Shoplifting | 17 |
| Burglary | 11 |
| Robbery | 6 |
| Theft from the person | 3 |
Source: police.uk, 12 months to August 2026
How Shenley & South Mimms compares
Each dot is a middle area. The black line marks the middle one.
Is Shenley & South Mimms safe? What police records show
In the 12 months to August 2026, police recorded crimes and anti-social behaviour in Shenley & South Mimms at a rate of 125.7 per 1,000 people.
That compares with 89.1 per 1,000 people across Hertsmere.
Across England as a whole, the recorded crime rate was 96.3 per 1,000 people.
In August 2026 alone, 75 cases of crime and anti-social behaviour were recorded in Shenley & South Mimms.
In the 12 months to August 2026, the most common types were other crime (301), violence and sexual offences (127) and anti-social behaviour (101).
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 Hertsmere
These figures are published for the whole of Hertsmere, not for each middle area, so they describe all of Hertsmere and not Shenley & South Mimms alone. See Hertsmere
Shenley & South Mimms in brief
The median price paid for a home in Shenley & South Mimms was £580,000 in 2025.
Shenley & South Mimms had 5,391 usual residents at the census.
About 43% of people in Shenley & South Mimms live in a 1 km square that the radon atlas marks as a radon Affected Area.
In Shenley & South Mimms, 84.0% of homes and businesses could get gigabit-capable broadband in January 2026.