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Fact Sheet

California’s County Jails

By Magnus Lofstrom, Brandon Martin, Andrew Skelton

The statewide jail population is significantly lower than it was before the pandemic. The population is largely male and being held for felonies.

Report

California’s County Jails in the Era of Reform

By Sonya Tafoya, Mia Bird, Ryken Grattet, Viet Nguyen

California’s county jails have been profoundly affected by several reforms over the last decade. Most importantly, in 2011, public safety realignment shifted responsibility for large numbers of non-serious, non-violent, and non-sexual offenders from state prisons to county correctional systems. This lowered the state prison population—allowing prisons to prioritize beds for more serious offenders—but increased county jail populations. Three years later, Proposition 47 downgraded a range of drug and property offenses from potential felonies to misdemeanors. The reduced population pressure has allowed jails to prioritize beds for more serious drug and property offenders who are no longer eligible for prison.

Despite the growing importance of jails, little is known about the basic characteristics of jail populations. In this report, we analyze state and local data on individuals moving through county correctional systems. Using data from 11 counties, we find that:

  • Reforms altered the offender composition of the jail population, especially among those held on drug and property crimes. After three years under realignment, the number of drug and property offenders in jails increased by 55 percent and 40 percent, respectively. One year after the passage of Proposition 47, the number of drug and property offenders fell by 35 percent and 13 percent, respectively.
  • Length of stay for felony drug and property offenders increased after realignment. For example, median time served for felony drug offenders released in October 2011 was 45 days, compared to 98 days for those released in October 2015. However, length of stay for people who served time for misdemeanors and felony crimes against persons has remained stable.
  • Releases due to overcapacity rose under realignment and dropped after Proposition 47, when jail population pressure eased.
  • The demographic composition of jails has largely remained stable. But the age distribution does show modest signs of change: the share of those ages 18–21 in jail has decreased slightly, as the share of those in their 30s has increased.

As jail populations shift toward more serious drug and property offenders, counties and the state will need to consider how jail security and rehabilitative programs might be made more effective. While researchers and policymakers continue to examine the longer-term effects of realignment and Proposition 47, it is also important to keep in mind that the recent reprioritization of jail beds may have implications for crime and recidivism.

blog post

Falling Jail Populations Have Eased Overcrowding in Most County Jails

By Brandon Martin, Magnus Lofstrom

California jails have historically faced capacity issues that required counties to release people early. However, a close look at jail populations in the wake of the pandemic shows that overcrowding is now an issue in just a handful of counties.

blog post

California Jails and COVID-19

By Heather Harris, Joseph Hayes

The jail population statewide remains below its pre-pandemic level. Still, more than 15,000 people are housed in overcrowded jail conditions associated with virus proliferation.

Report

Public Safety Realignment: Impacts So Far

By Magnus Lofstrom, Brandon Martin

Prompted by a federal court order to reduce prison overcrowding, California’s 2011 historic public safety realignment shifted many correctional responsibilities for lower-level felons from the state to counties. The reform was premised on the idea that locals can do a better job, and it was hoped that incarceration rates and corrections costs would fall. At the same time, critics predicted crime would rise. Four years since its implementation, realignment has made several important impacts:

  • Realignment significantly reduced the prison population, but the state did not reach the court-mandated population target until after the passage of Proposition 47 in November 2014, which reduced penalties for many property and drug offenses.
  • The reform challenged county jails and probation departments by making them responsible for a greater number of offenders with a broader range of backgrounds and needs.
  • The county jail population did not rise nearly as much as the prison population fell, reducing the total number of people incarcerated in California.
  • Realignment did not increase violent crime, but auto thefts rose.
  • Research so far shows no dramatic change in recidivism rates.
  • State corrections spending remains high, but there is reason to believe expenditures could drop in the future.

Realignment has largely been successful, but the state and county correctional systems face significant challenges. The state needs to regain control of prison medical care, which is now in the hands of a federal receiver. And the state and counties together must make progress in reducing stubbornly high recidivism rates.

Report

Expanding Health Coverage in California: County Jails as Enrollment Sites

By Shannon McConville, Mia Bird

In 2014, the first year of Affordable Care Act (ACA) implementation, the number of Californians with health insurance increased substantially. However, millions of state residents continue to lack comprehensive health coverage, and those who remain uninsured are likely more difficult to enroll through traditional strategies.

In this report, we find that uninsured rates are highest for young men and for those with low levels of education, income, and employment. The prevalence of these same characteristics among correctional populations suggests that the justice system—and, in particular, county jails—may offer points of contact for many uninsured individuals who would otherwise be hard to reach.

Outreach and enrollment efforts aimed at local jail populations are set within the policy context of California’s 2011 Public Safety Realignment, which created incentives and resources for local corrections agencies to improve reentry outcomes. With expansions in access to health insurance coverage under the ACA, nearly all counties are establishing programs to provide enrollment assistance to jail inmates as part of a more comprehensive reentry strategy. But resources and capacity are limited, so it is important to identify effective models to maximize the potential of county correctional systems as sites of insurance enrollment.

Report

How Has Proposition 47 Affected California’s Jail Population?

By Sonya Tafoya, Mia Bird, Ryken Grattet, Viet Nguyen

Passed by the voters in 2014, Proposition 47 reduced penalties for certain drug and property crimes. This change led to dramatic declines in the state's jail population, driven by decreases in arrests, convictions, and jail time for Proposition 47 offenders.

This research was supported with funding from The California Endowment.

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