New data from the Census Bureau reveals that the U.S. median age rose to a high of 38.9 years: an increase of three and half years in the last 23 years. The U.S. prison population is aging, too, and at a much faster rate than the nation as a whole — and older adults represent a growing portion of people who are arrested and incarcerated each year. The aging of the prison population is the result of a series of disastrous policy decisions in policing, sentencing, and reentry over roughly the last half-century. And while prisons and jails are unhealthy for people of all ages, older adults’ interactions with these systems are particularly dangerous, if not outright deadly.

Aging throughout the criminal legal system

Older adults are increasingly ensnared in all parts of the criminal legal process: in arrests, pretrial detention, and imprisonment. In 2000, 3% of all adult arrests involved people aged 55 or older, and by 2021, this older population accounted for 8% of all adult arrests. According to the most recent available data on local jails across the U.S., from 2020 to 2021 — during the COVID-19 pandemic, which was particularly dangerous for older adults — the segment of the jail population aged 55 and older expanded by a greater proportion than any other age group, growing 24% compared to an average increase of 15% across all other age groups.

Meanwhile, older people make up five times as much of the prison population as they did three decades ago. From 1991 to 2021, the percentage of the state and federal prison population nationwide aged 55 or older swelled from 3% to a whopping 15%. This growth is seen even more acutely when looking at people serving life sentences: by 2020, 30% of people serving life sentences were at least 55 years old, with more than 61,400 older adults sentenced to die in prison.

The dangers of aging in prison

Prisons are unhealthy places for anyone of any age, but keeping older adults locked up is particularly dangerous. A robust body of research shows that incarceration itself accelerates aging: people face more chronic and life-threatening illnesses earlier than we would expect outside of prison, and physiological signs of aging occur in people younger than expected.

The high costs of incarcerating older people

State and federal governments spend increasingly more money on consistently inadequate healthcare for their growing populations of older adults. While most studies on the steep costs of incarcerating older people date back at least a decade, their findings are consistently dramatic. For example, in California prisons in the 1990s, the state spent three times as much money to incarcerate an older person than someone of any other age group.

Low risk of re-arrest and re-incarceration for older adults

The older someone is, the less likely they are to be arrested following release from prison, according to the most recent government study of recidivism. In fact, people released at age 65 or older are the least likely of any age group to be re-arrested in the five years following release.

Tools to reduce the aging prison population remain underutilized

While attention to this crisis has grown in recent years, many of the available tools — such as parole and compassionate release — have been underutilized. The failure to release older adults from prison has deadly repercussions: from 2001 to 2018, over 30,500 people aged 55 or older died in prison and almost all of these deaths (97%) were due to illnesses.

Read the full article about the aging prison population by Emily Widra at Prison Policy Initiative.