Annual Survey of Jails, 2021

The Annual Survey of Jails (ASJ) is the only data collection effort that provides an annual source of data on local jails and jail inmates. Data on the size of the jail population and selected inmate characteristics are obtained every five to six years from the Census of Jails. In each of the years between the complete censuses, a sample survey of jails is conducted to estimate baseline characteristics of the nation's jails and inmates housed in these jails. The 2021 Annual Survey of Jails is the 33rd such survey in a series begun in 1982. The ASJ supplies data on characteristics of jails such as admissions and releases, growth in the number of jail facilities, changes in their rated capacities and level of occupancy, growth in the population supervised in the community, changes in methods of community supervision, and crowding issues. The ASJ also provides information on changes in the demographics of the jail population, supervision status of persons held, and a count of non-U.S. citizens in custody. The data presented in this study were collected in the Annual Survey of Jails, 2021. These data are used to track growth in the number of jails and the capacities nationally, changes in the demographics of the jail population and supervision status of persons held, the prevalence of crowding issues, and a count of non-U.S. citizens within the jail population. The data are intended for a variety of users, including Federal and State agencies, local officials in conjunction with jail administrators, researchers, planners, and the public. The reference date for the survey is June 30, 2021. The 2021 ASJ included a special module to collect data on the impact of the COVID-19 pandemic on local jails from July 1, 2020, to December 31, 2020. Items included: number of jail inmates at the end of each month from July 2020 to December 2020 number of expedited releases from jail due to the pandemic number of COVID-19 tests conducted on confined inmates number of positive tests number of jail staff that tested positive number of jail inmates and staff that died from COVID-19 The data on COVID-19 tests and deaths are in the restricted-use version of the 2021 ASJ data file only

《年度监狱调查》（ASJ）是唯一一项提供关于地方监狱及囚犯年度数据的收集工作。每隔五至六年，从监狱普查中获取有关监狱人口规模及精选囚犯特征的数据。在全面普查年份之间，对监狱进行抽样调查，以估算全国监狱及关押在这些监狱中的囚犯的基线特征。2021年度监狱调查是该系列自1982年开始的第33次调查。ASJ提供了关于监狱特征的数据，例如接纳和释放情况、监狱设施数量的增长、其额定容量及入住率的变动、社区监管人口的增长、社区监管方法的变动以及拥挤问题。ASJ还提供了关于监狱人口人口统计特征的变化、被监管人员的监管状态以及被拘留的非美国公民数量的信息。本研究中呈现的数据均来自2021年度监狱调查。这些数据用于追踪全国监狱数量及容量的增长、监狱人口人口统计特征及被监管人员监管状态的变动、拥挤问题的普遍性以及监狱中非美国公民数量的统计。数据旨在服务于多种用户，包括联邦和州级机构、与监狱管理员协同的地方官员、研究人员、规划者和公众。调查的参考日期为2021年6月30日。2021年ASJ包含一个特别模块，用于收集2020年7月1日至2020年12月31日期间COVID-19大流行对地方监狱影响的数据。包括以下内容：从2020年7月到12月每月末的监狱囚犯人数、因大流行而加速释放的囚犯数量、对被关押囚犯进行的COVID-19检测数量、阳性检测数量、检测呈阳性的监狱工作人员数量、因COVID-19去世的囚犯和工作人员数量。COVID-19检测和死亡数据仅包含在2021年ASJ数据文件的受限制使用版本中。