Is this London figure a real ONS number?

Yes — it is the published regional median gross annual pay for this occupation in the April 2025 ASHE reference period. ONS suppresses small or unreliable regional cells; only unsuppressed regions appear in this cluster, and none are estimated.

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Prison service officers (below principal officer) Salary in London

A Prison service officers (below principal officer) in London earns a median gross annual pay of £46,673 — that's £5,386 (13%) above the UK median of £41,287. Real ONS figures (SOC 3314, ASHE 2025 provisional, April 2025 reference period, ONS, OGL v3).

Quick answer

The median salary for a Prison service officers (below principal officer) in London is £46,673 gross per year, compared with £41,287 across the UK. A real ONS estimate, April 2025 — ASHE 2025 provisional, April 2025 reference period, ONS, OGL v3.

London vs UK median

Area	Median (annual)
London	£46,673
United Kingdom	£41,287

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Prison service officers (below principal officer) pay in other UK regions

Scotland£40,850

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Prison service officers (below principal officer) in London — frequently asked questions

How much does a Prison service officers (below principal officer) earn in London?: The median gross annual pay for a Prison service officers (below principal officer) in London is £46,673, per the ONS Annual Survey of Hours and Earnings (ASHE 2025 provisional, April 2025 reference period, ONS, OGL v3). The UK-wide median for this occupation is £41,287.
Is this London figure a real ONS number?: Yes — it is the published regional median gross annual pay for this occupation in the April 2025 ASHE reference period. ONS suppresses small or unreliable regional cells; only unsuppressed regions appear in this cluster, and none are estimated.

Source: Office for National Statistics — Annual Survey of Hours and Earnings (ASHE), Table 14.7a (occupation 4-digit SOC) + Table 15 (4).7a (region by occupation), Full-Time sheet. Figures are Median gross annual pay (GBP), full-time employees, April 2025 reference period (ASHE 2025 provisional, April 2025 reference period, ONS, OGL v3). Released 2025-10-23, corrected 2025-12-19. Licensed under the Open Government Licence v3.0 (OGL v3). No figure is modelled or interpolated.