Home Office · Immigration system statistics: immigration detention detailed datasets · 1 values
People in immigration detention by length of detention
The number of people held in immigration detention on the last day of the quarter, split by how long they had been detained. This is a stock, not a flow.
at June 2026 · total 2,152 people · published 27 August 2026
| Length of detention | Latest | Share | A year earlier | Change |
|---|---|---|---|---|
| Not available | 2,152 | 100% | 1,808 | ▲ 19% |
Source
- Dataset
- Immigration system statistics: immigration detention detailed datasets · sheet Data_Det_D02
- Rows
- all rows; values are the sum of the published rows for each length of detention and period.
- Caveat
- Entries to or exits from detention during the quarter; since March 2023 the Home Office publishes length of detention as "Not available" for everyone in detention.
- Parent metric
- People in immigration detention
- API
- /api/metrics/detention_population_by_length/vintages