By Aaron Allen, The Seattle Medium
New data from King County’s Department of Community and Human Services shows that providing permanent supportive housing significantly reduces involvement with the criminal legal system. But the findings also reveal that racial disparities persist, highlighting both the promise and limitations of housing as a tool for advancing equity.
According to an analysis of 5,371 residents between 2021 and 2025, jail bookings declined nearly 27% during the first year after individuals moved into permanent supportive housing. The reduction continued over time, reaching 37.6% within three years of placement. Overall, 81% of residents with a recent jail booking experienced a decline after obtaining stable housing.
For Seattle’s Black community, the findings are particularly significant.
While the study found reductions in jail bookings across all racial and ethnic groups, Black residents entered supportive housing with significantly higher rates of prior jail involvement than white, Asian and Hispanic/Latinx residents. The findings underscore a reality long recognized by community advocates: homelessness and criminal legal system involvement are deeply intertwined, and both are shaped by longstanding racial inequities.
“Breaking the cycle of homelessness starts with providing housing,” said King County Executive Girmay Zahilay. “Every person deserves the stability of a safe place to call home. This data shows that when people have a stable place to live, they’re less likely to cycle through our jail system. That’s better for individuals, better for the broader community, and a reminder that housing is one of the most effective investments we can make.”
Advocates have long argued that Black residents face heightened risks of becoming trapped in a cycle involving homelessness, law enforcement contact and incarceration. People living unsheltered often experience increased interactions with police through low-level offenses such as trespassing, sleeping in public spaces or loitering. Because Black residents are disproportionately represented among the region’s unhoused population, they are more likely to encounter those systems.
“Homelessness and jail involvement can reinforce each other,” said Jelani Jackson, acting director of Housing and Community Development for King County’s Department of Community and Human Services. “When people are living outside, they are more likely to be cited or arrested for low-level offenses like trespassing, sleeping in public spaces. What we want to do is provide an actual solution to that problem, which is housing.”
“When folks have the stability of housing, they’re not out on the streets. They’re not going to be victimized by crime, and can break that cycle of homelessness and cycling in and out of shelters through the criminal legal system and the medical system,” Jackson continued.
For Derrick Belgarde, chief executive officer of the Chief Seattle Club, the findings reinforce both the value of supportive housing and the need for culturally grounded investments.
“These findings reflect what providers see every day,” said Belgarde . “When people have a stable home and access to supportive services, they are better able to move beyond crisis and focus on their health, relationships, and future.”
Belgarde said the data should also serve as a reminder that Native and other communities of color continue to face disproportionate barriers because of generations of systemic inequities.
“While these findings show that stable housing and supportive services can help create greater stability, they also remind us that we must continue investing in culturally grounded housing and services so that Native communities and other communities of color have equitable opportunities to thrive,” said Belgarde.
The findings have been incorporated into King County’s public Health Through Housing dashboard. While many dashboard metrics focus specifically on county-funded Health Through Housing properties, the jail booking analysis examined residents across all adult-serving permanent supportive housing programs throughout King County.
County officials said the findings can help inform future investments in supportive housing and other interventions designed to address homelessness and housing instability.
“We wanted to find this data and try to understand it, and really it’s rooted in trying to just do better governance,” said Jackson. “We need to look at available data to inform how we’re programming public dollars. We’re just pleased to see that jail bookings do go down when folks have stable housing.”
The findings build on data released last year showing that permanent supportive housing also reduces emergency room visits, hospital stays and other indicators of crisis.
“The data confirms what residents, providers, and communities experience every day: housing creates the stability people need to move forward,” said Dr. Susan McLaughlin, director of the Department of Community and Human Services. “Many people enter supportive housing after years of navigating homelessness, health challenges, and repeated crises. When people have a safe place to live and access to support, they are better able to focus on their health, reconnect with their communities, and build a more stable future.”
To compile the study, county researchers matched Homeless Management Information System records with jail booking records from seven local correctional facilities, including five municipal jails and two county facilities.
County officials noted that the bookings analyzed included administrative and court-related matters and do not necessarily indicate new criminal activity.
The data also revealed an important challenge.
Although Black residents experienced reductions in jail involvement after securing housing, those declines were not as pronounced as those experienced by white and American Indian/Alaska Native residents. The findings suggest that while supportive housing reduces legal system involvement, housing alone cannot fully eliminate disparities rooted in broader social and institutional inequities.
The results are particularly notable given the level of instability many residents faced before entering housing. County data shows that 38% of residents analyzed had at least one jail booking during the five years before entering permanent supportive housing. Once housed, however, residents maintained a 93% housing retention rate.
As King County leaders continue to address homelessness, housing affordability and public safety, officials say the findings provide further evidence that permanent supportive housing remains one of the region’s most effective interventions.
“What we’re seeing is this convergence of when you build solutions that meet the needs of the community, the community will accept those solutions and choose housing over homelessness,” said Jackson. “When you look at all of these data points holistically, what we’re seeing is a higher quality of life for residents, better outcomes for the community, and an efficient use of public dollars to address the homelessness crisis that our region has.”
