Inmate to Institutional Staff Ratio. 'Institutional Staff' refers to full time (or equivalent) staff working in prisons/correctional institutions, including all categories or staff in prisons/correctional institutions, but excluding those working in headquarters and training colleges. Data is retrieved at end June yearly.
Inmate to Prison Staff Ratio
Data explorer
InmatetoPrisonStaffRatio.csv (13 rows, 140 B)
Year
Year (YYYY)
Inmate To Staff Ratio
Numeric
(Null)0.0%
(Null)0.0%
2006
7.5
2007
6.7
2008
6.9
2009
7.2
2010
7.6
2011
7.5
2012
6.7
2013
6
2014
6.1
2015
5.9
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Column legend
Title
Column name
Data type
Unit of measure
Description
Year
year
Year (YYYY)
-
-
Inmate To Staff Ratio
inmate_to_staff_ratio
Numeric
Number of Inmate to Number of Staff
-
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This dataset can be reused and cited in research publications.
Singapore Prison Service. (2016). Inmate to Prison Staff Ratio (2024) [Dataset]. data.gov.sg. Retrieved October 26, 2025 from https://data.gov.sg/datasets/d_888311df97e3d7d1402435bf4a57daf8/view