Quick statistics

We provide inmate quick statistics by gender.

Male jurisdiction population

Updated monthly (1/1/2020)

  • 7,988 total males in the jurisdiction population: 7,348 criminally sentenced, 64 pre-trial detainees, and 576 civil commitments 
  • Average age of inmate was 42 years old (youngest inmate was 18 years old and oldest inmate was 90 years old)
  • 96% were serving a sentence of more than three years 
  • 73% had a violent governing offense 
  • 561 were serving a governing mandatory drug sentence 

Updated annually (1/1/2019)

  • 42% entered the Massachusetts DOC with less than a 9th grade reading level 
  • 44% entered the Massachusetts DOC with less than a 6th grade math level 
  • The 2014 three year recidivism rate was 32% for the total male population 
  • 35% were open mental health cases, 8% had a serious mental illness (SMI), and 25% were on psychotropic medication for the Custody Population as of 12/31/2018 Note: Information provided by Health Services Division

Female jurisdiction population

Updated monthly (1/1/2020)

  • 304 total females in the jurisdiction population: 254 criminally sentenced, 45 pre-trial detainees, and 5 civil commitment
  • Average age of inmate was 40 years old (youngest inmate was 19 years old and oldest inmate was 75 years old) 
  • 83% were serving a sentence of more than three years 
  • 66% had a violent governing offense 
  • 15 were serving a governing mandatory drug sentence 

Updated annually (1/1/2019)

  • 29% entered the Massachusetts DOC with less than a 9th grade reading level 
  • 34% entered the Massachusetts DOC with less than a 6th grade math level 
  • The 2014 three year recidivism rate was 32% for the total female population 
  • 74% were open mental health cases, 15% had a serious mental illness (SMI), and 56% were on psychotropic medication for the Custody Population as of 12/31/2018 
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