HELP US END MASS INCARCERATION The Prison Policy Initiative uses research, advocacy, and organizing to dismantle mass incarceration. We’ve been in this movement for 22 years, thanks to individual donors like you.

Can you help us sustain this work?

Thank you,
Peter Wagner, Executive Director Donate

Number of people in prison in 2020 from each Maryland county

FIPS code, 2020 Maryland counties Number of people in state prison from each county, 2020 Census population, 2020 Total population, 2020 Imprisonment rate per 100,000
24001 Allegany 105 68,106 65,852 159
24003 Anne Arundel 825 588,261 585,432 141
24005 Baltimore 2,138 854,535 856,673 250
24009 Calvert 142 92,783 92,925 153
24011 Caroline 121 33,293 33,414 362
24013 Carroll 162 172,891 172,640 94
24015 Cecil 238 103,725 103,963 229
24017 Charles 321 166,617 166,836 192
24019 Dorchester 189 32,531 32,720 578
24021 Frederick 268 271,717 271,985 99
24023 Garrett 40 28,806 28,846 139
24025 Harford 541 260,924 261,465 207
24027 Howard 217 332,317 331,804 65
24029 Kent 41 19,198 19,239 213
24031 Montgomery 649 1,062,061 1,062,710 61
24033 Prince George's 1,571 967,201 968,772 162
24035 Queen Anne's 73 49,874 49,834 146
24037 St. Marys 181 113,777 113,958 159
24039 Somerset 125 24,620 21,807 573
24041 Talbot 72 37,526 37,598 192
24043 Washington 411 154,705 150,517 273
24045 Wicomico 639 103,588 104,227 613
24047 Worcester 147 52,460 52,607 279
24510 Baltimore City 6,025 585,708 589,579 1,022

Sources and methodology

FIPS code, 2020
FIPS (Federal Information Processing Series) Codes are codes used by the Census Bureau to uniquely identify counties and county equivalents in the US. The first two digits are the FIPS state code (e.g., 36=NY); and the last three digits are the FIPS county code within the state (e.g., 001=Albany County). These are the FIPS Codes used in the 2020 Census.
Maryland counties
This is the county or county equivalent as defined by the Census Bureau for Census 2020.
Number of people in state prison from each county, 2020
This is the number of people from each county in state prison as of 2020. See the methodology section of the report.
Census population, 2020
This is the population of the county as reported in the 2020 Census.
Total population, 2020
This is the total population of the county as reflected in the 2020 Census plus the imprisoned population.
Imprisonment rate per 100,000
This is the number of imprisoned people divided by the total population and then multiplied by 100,000. It allows ready comparison of the frequency of imprisonment between each county of different population sizes.


Stay Informed


Get the latest updates:



Share on 𝕏 Donate