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United Kingdom · East of England · March, Cambridgeshire

HMP Whitemoor

Category AMaximummaleOvercrowded (100%)LowHigh
Verified 29 May 2026 · Data dated 1 Apr 2024
Fresh · 0d ago

Data is aggregated from public sources and may be incomplete or out of date. Always verify with primary sources before acting on any figure. See data sources.

For families

How to send mail, money, and visit HMP Whitemoor

Step-by-step guidance using the United Kingdom system — addresses, money services, visit booking, what to bring on your first visit.

Open toolkit
Photograph of HMP Whitemoor

Gallery

From Wikimedia Commons (CC-BY-SA where not otherwise stated).

  • Walls of Whitemoor Prison, March - geograph.org.uk - 660641.jpg

    Photo by dennis smith via Wikimedia Commons (CC BY-SA 2.0)

  • Whitemoor.jpg

    Photo by Penningtonuk via Wikimedia Commons (CC BY-SA 3.0)

Dispersal prison holding the highest-security Category A inmates including those convicted of terror offences. Houses one of the prison estate's separation centres.

Background

HM Prison Whitemoor is a Category A men's prison near March, Cambridgeshire, England, operated by His Majesty's Prison Service.

Source: Wikipedia article lead, CC-BY-SA.

Capacity

458

Current population

458

Occupancy

100%

Year opened

1991

Operational

Facility profile

Operator

HM Prison & Probation Service

Population held

male

Opened

1991

Region

East of England

Security level

Maximum

Death-row facility

No

Conditions

HMI noted concerns about radicalisation dynamics in the high-security estate; separation centre opened 2017 as policy response.

Visiting

Pre-approved visits via Prison Visits Booking system.

Mailing

Format: Prisoner Name & Number, HMP Whitemoor, Longhill Road, March, Cambridgeshire PE15 0PR.

Practical info

Visiting families housed at on-site Family Visits Centre run by Pact.

Known issues

January 2020 attack on prison officer led to changes in separation-centre management.

Notable inmates

Various terror-related convicts (names withheld). Historically: Reggie Kray (1990s).

Contact & address

Longhill Road, March, Cambridgeshire PE15 0PR

Conditions Risk Score

Derived signal — not a judgement. How it's calculated

5/100
Low concern5/100
Overcrowding
5/30
Oversight reports
0/30
Structural flags
0/15
Death signals
0/15
Conditions text
0/10

What the score is responding to:

  • · Operating at 100% of design capacity

Compared to other facilities in United Kingdom

583 peers
Conditions risk scorethis: 5/100 · peers avg: 4/100 (+28%)

Higher risk than 75% of peer facilities in United Kingdom.

Occupancythis: 100% · peers avg: 114% (12%)
Capacity (beds)this: 458 · peers avg: 638 (28%)

Data completeness

100%

How many of our profile fields are populated. We surface this so families and researchers know the limits.

Sources