Help End Prison Gerrymandering Prison gerrymandering funnels political power away from urban communities to legislators who have prisons in their (often white, rural) districts. More than two decades ago, the Prison Policy Initiative put numbers on the problem and sparked the movement to end prison gerrymandering.

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Maine correctional populations of Census 2020 vintage

We recommend using these addresses only for guidance in identifying prison populations in the Census data and warn against assuming that the prisons were in fact counted at that particular location.

Facility Name Prisoners Type Address City Zip County Survey Date
Androscoggin Co. Jail 149 Local 12/31/2013
Aroostook Co. Jail 73 Local 12/31/2013
Bolduc Correctional Facility 232 State 516 Cushing Road Warren 04864 Knox 6/30/2012
Central Maine Pre Release Center 63 State 87 Winthrop Street Hallowell 04347 Kennebec 6/30/2012
Charleston Correctional Facility 151 State Rte 15, 1202 Dover Road Charleston 04422 Penobscot 6/30/2012
Downeast Correctional Facility 149 State 64 Base Road Machiasport 04655 Washington 6/30/2012
Hancock Co. Jail 30 Local 12/31/2013
Kennebec Co. Jail 153 Local 12/31/2013
Knox Co. Jail 70 Local 12/31/2013
Maine Coastal Regional Reentry Center 26 Local 12/31/2013
Maine Correctional Center 704 State 17 Mallison Falls Road Windham 04062 Cumberland 6/30/2012
Maine State Prison - Warren 821 State 807 Cushing Road Warren 04864 Knox 6/30/2012
Penobscot Co. Jail 162 Local 12/31/2013
Pharos House 20 Private 5 Grant St Portland 04101 Cumberland 6/30/2012
Piscataquis Co. Jail 33 Local 12/31/2013
Somerset Co. Jail 162 Local 12/31/2013
Southern Maine Women's Re-Entry Center 13 State 106 Hogan Road, Ste 8 Bangor 04401 Penobscot 6/30/2012
Two Bridges Regional Jail 177 Local 12/31/2013
Washington Co. Jail 38 Local 12/31/2013

This table draws data from four sources:

  • Federal prisons on April 2, 2020: The Prison Policy Initiative downloaded the weekly population list from the Bureau of Prisons for that date.
  • State and federal correctional facilities on June 30, 2012 were extracted from: United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics. Census of State and Federal Adult Correctional Facilities, 2012. ICPSR37294-v1. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2020-02-06. doi:10.3886/ICPSR37294.v1. County data retrieved from postal service database.
  • Local jails' average daily populations from January 1, 2013 to December 31, 2013 were extracted from: United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics. Census of Jail Facilities, 2013. ICPSR36128-V4. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2018-04-25. doi:10.3886/ICPSR36128.v4
  • Jails in Indian Country populations on June 30, 2016 were extracted from: United States Department of Justice. Office of Justice Programs. Bureau of Justice Statistics. Annual Survey of Jails in Indian Country, 2016. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 2018-05-23. doi:10.3886/ICPSR37006.v1

Military prisons and state halfway houses are not included in the above table as we were not able to locate an appropriate national database of these types of facilities. Juvenile facilities are not included in the above because the Census Bureau counts these facilities separately from the adult correctional institutions that are the focus of our work. Where necessary, state-specific sources will be more useful for identifying juvenile facilities.

We do, however, have a list (without population information) of all federal halfway houses as of April 2, 2020 [XLSX].

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