Connecticut Prison Populations

Source Dataset

SQL Console

ChartLab in ATSD

Total Connecticut Prison Population by Quarter (2009 - 2017)

SELECT date_format(time, 'yyyy-MM') AS "Time", sum(value)/1000 AS "Total Population (1000 Persons)"
  FROM average_inmate_population
GROUP BY time
  ORDER BY time, 'Total Population (1000 Persons)'
Time Total Population (1000 Persons)
2009-09 18.83
2009-12 18.47
2010-03 18.31
2010-06 18.33
2010-09 18.51
2010-12 18.21
2011-03 17.80
2011-06 17.67
2011-09 17.71
2011-12 17.55
2012-03 17.15
2012-06 16.79
2012-09 16.64
2012-12 16.64
2013-03 16.62
2013-06 16.79
2013-09 17.09
2013-12 16.93
2014-03 16.70
2014-06 16.54
2014-09 16.55
2014-12 16.51
2015-03 16.22
2015-06 16.10
2015-09 16.12
2015-12 15.95
2016-03 15.71
2016-04 0.60
2016-04 4.06
2016-06 15.38
2016-09 15.12
2016-12 14.12
2017-03 13.87

Average Connecticut Prison Population by Facility (2009 - 2017)

SELECT tags.facility_name AS "Facility Name", avg(value) AS "Population"
  FROM average_inmate_population
GROUP BY 'Facility Name'
   ORDER BY 'Population' DESC, 'Facility Name'
Facility Name Population
MacDougall/Walker 2069
Osborn 1925
Corrigan-Radgowski 1564
CRCI 1443
Cheshire 1410
Willard-Cybulski 1152
York 1097
Hartford 1069
Bridgeport 936
New Haven 779
Enfield 741
Garner 590
MYI 555
Brooklyn 481
Niantic Annex* 434
Bergin* 360
Northern 279
Gates* 205
Webster* 22

* Bergin, Gates, Niantic Annex, and Webster Prisons closed in 2011, 2011, 2016, and 2010 respectively.

Current Connecticut Prison Population by Facility (2017)

SELECT tags.facility_name AS "Facility Name", last(value) AS "Population"
  FROM average_inmate_population
GROUP BY 'Facility Name'
   ORDER BY 'Facility Name', 'Population'
Facility Name Population
Bergin 0
Bridgeport 791
Brooklyn 455
CRCI 1459
Cheshire 1312
Corrigan-Radgowski 1414
Enfield 720
Garner 551
Gates 0
Hartford 950
MYI 581
MacDougall/Walker 1965
New Haven 646
Niantic Annex 0
Northern 275
Osborn 1392
Webster 0
Willard-Cybulski 1145
York 1005

Average Connecticut Prison Population Density by Facility (2009 - 2017)

Density is defined as [(Number of Prisoners)/(Number of Beds)]

SELECT tags.facility_name AS "Facility Name", avg(value) AS "Density"
  FROM inmate_population_density
WHERE tags.facility_name NOT IN ('Bergin', 'Gates', 'Niantic Annex', 'Webster')
  GROUP BY 'Facility Name'
ORDER BY 'Density' DESC
Facility Name Density
Hartford 109
Brooklyn 105
Corrigan-Radgowski 105
Willard-Cybulski 104
Enfield 102
New Haven 102
MacDougall/Walker 97
Cheshire 97
Osborn 94
CRCI 93
York 93
Bridgeport 92
Garner 79
MYI 78
Northern 48

Non-operational prisons have been removed from this query.

The five most densely-populated Connecticut prisons are shown above.

Current Connecticut Prison Population Density by Facility (2017)

Density is defined as [(Number of Prisoners)/(Number of Beds)]

SELECT tags.facility_name AS "Facility Name", last(value) AS "Density"
  FROM inmate_population_density
WHERE tags.facility_name NOT IN ('Bergin', 'Gates', 'Niantic Annex', 'Webster')
  GROUP BY 'Facility Name'
ORDER BY 'Density' DESC, 'Facility Name'
Facility Name Density
Brooklyn 100
Willard-Cybulski 100
Enfield 100
Osborn 99
CRCI 99
Hartford 97
Corrigan-Radgowski 94
MacDougall/Walker 92
Bridgeport 90
MYI 88
York 88
New Haven 87
Cheshire 86
Garner 82
Northern 49