GDP per head vs mean vs median wage — Isle of Man

GDP per head has historically been used as a proxy for household wealth. In most economies, that is a reasonable shortcut — output and income track each other fairly closely. In the Crown Dependencies, they don't. The Isle of Man's GDP per head is roughly £69,000. The median full-time employee earns around £38,000. That gap — between what is produced on the island and what residents take home — is structural. It reflects profits flowing to capital, not labour: to shareholders and beneficial owners who largely live elsewhere. This page shows the earnings side of that equation.

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The median is the wage at which half of workers earn more and half earn less — it is a better measure of the typical worker than the mean, which is pulled upward by high earners. In 2024, the Isle of Man median full-time wage was £765/week (~£39,800/year). The island's GDP per head in 2023 was roughly £69,000. That gap — between what the economy produces and what the median employee takes home — is not a measurement error. It is profits flowing to capital rather than labour. Jersey median was an estimated £850/week against GDP/head of ~£65,500. Guernsey's median annual earnings of £42,672 tell a similar story. The UK median was £709/week — and UK GDP per head was roughly £36,400. In the UK, wages and output per head are within a few percent of each other. Here, they are not.
⚠ These series are not strictly comparable: different reference periods, different definitions of full-time, and different coverage. Treat as directionally informative.
Series

Comparability caveats

The four series on this chart are sourced from different national surveys with different designs. They should be read as indicating the order of magnitude of earnings differences, not as precise cross-jurisdiction comparisons.

IoM methodological break (2012)

From 2015, the IoM Earnings Survey stopped "trimming" high earners from the average calculation, aligning with ONS methodology. Average earnings figures have been restated from 2012 onwards. Pre-2012 figures are not directly comparable and are shown as a dashed line.

Jersey median estimation

Statistics Jersey's IAE is a firm-level survey and cannot produce an individual-level median. The median shown here is an uprated estimate from the 2021/22 LCHIS, with uncertainty increasing as the uprating period extends. Statistics Jersey notes the estimate as ±£20 confidence interval.

Guernsey annual-to-weekly conversion

Guernsey reports median annual earnings; converted here to weekly (÷52.18). The annual figure covers all employed and self-employed workers, not just full-time employees — this will tend to pull the figure down relative to full-time-only IoM and UK series.

Sources

  • IoM: gov.im/about-the-government/departments/cabinet-office/statistics-isle-of-man/earnings-survey/ (reports 2009–2024)
  • Jersey: Statistics Jersey Index of Average Earnings, June releases 2009–2025; median uprated from 2021/22 LCHIS
  • Guernsey: States of Guernsey Quarterly Population, Employment and Earnings Bulletin (Revenue Service data)
  • UK: ONS ASHE Table 1 (median weekly gross pay, full-time employee jobs, April each year)