January 9, 2026
Author: Nicole Newhouse (Executive Director, AZHC)
In Arizona, “prevention” is often treated as a synonym for stopping evictions. While that work is critical, it is reactive. True homelessness prevention is a broader, more strategic intervention that addresses the root causes of instability before a person’s housing, health, or support systems unravel. Eviction prevention is necessary, but it is not sufficient. This distinction is one of the central gaps in our state’s safety net.
Eviction prevention keeps people from losing a specific home.
Homelessness prevention keeps people from entering the homeless system at all.
Confusing the two has left Arizona with a fragmented response that primarily catches people only after they have already fallen. If Arizona is serious about creating a coordinated plan to end homelessness, we must intervene earlier. This means investing in homelessness prevention as a defined, measurable, and essential part of the system—not an afterthought.
Two Words, Two Systems
The goals, tools, and delivery systems for these two concepts are fundamentally different.
Eviction prevention is unit-based (focused on a lease), while homelessness prevention is person-based (focused on stability). Both are essential, but they live in different funding silos—ESG, AHCCCS, DES, DCS, Corrections, city programs, and local courts—that often operate without alignment or shared outcomes.
The Data: Why Our Current Focus Fails
When eviction prevention is treated as the primary (or only) form of prevention, Arizona intervenes too late in the crisis cycle. Most eviction programs intervene only after a household receives a formal notice or court filing. While these interventions are critical, eviction is a lagging indicator of housing instability. By the time the legal process begins, a household is often already experiencing compounding crises—job loss, health issues, family breakdown, or system involvement—that eviction prevention alone cannot resolve.
Importantly, a significant share of people entering homelessness in Arizona never experience a formal eviction at all. Many become homeless after:
- Being asked to leave a “doubling up” situation with family or friends (a common reason listed as “evicted by family member”)
- Losing a job or having income that doesn’t cover bills
- Fleeing domestic violence or abuse
- Exiting systems like corrections or incarceration without a housing plan
- Aging out of foster care
- Discharge from a hospital or treatment facility
By focusing narrowly on formal evictions, we miss the thousands of Arizonans who never had a lease in their own name or whose instability stems from a health crisis or system failure.
What Effective Homelessness Prevention Looks Like
Programs that successfully prevent homelessness share three traits:
- They act early! They identify people at risk through “warm handoffs” from schools, healthcare providers, probation officers, or 2-1-1 before the crisis peaks.
- They are flexible! They use small, targeted interventions. A $500 car repair can save a job. A $200 utility payment can keep the lights on. A $1,000 security deposit can secure a new, safe apartment. They do whatever it takes to avoid a shelter entry.
- They are connected! They coordinate across systems. A signal in an emergency room can trigger outreach from a housing navigator, preventing a costly discharge into homelessness.
These programs are proof points of what works when systems are allowed to intervene early.
Arizona programs already model this approach:
- UMOM New Day Centers in Phoenix integrates “diversion” principles at intake, helping families identify safe alternatives to shelter.
- Flagstaff Shelter Services pairs assistance with mediation and housing navigation to stabilize households at risk, moving them toward stability.
- The Arizona Veterans StandDown Alliance identifies veterans in crisis through community events and connects them directly to supports that prevent homelessness.
The common denominator is intervention before a crisis becomes catastrophe.
Using Data to Build an Early Warning System
The people most likely to enter homelessness are often visible in other public systems long before they appear in a shelter database. This “at-risk” population includes:
- Individuals leaving corrections, foster care, or hospitals without a stable housing discharge plan
- Households that are “severely cost-burdened,” spending more than 50% of their income on rent
- Individuals with serious mental illness or substance use disorders leaving short-term treatment
- Older adults on fixed incomes facing rent hikes or medical debt
Arizona’s data systems—in AHCCCS, DES, and the CoCs—already track this information. What’s missing is integration. A statewide Homelessness Prevention Dashboard could combine data across agencies to flag risk factors and trigger early intervention, allowing a probation officer or hospital discharge planner to alert a prevention team in real time. This integration does not require new data collection, only responsible data-sharing protocols already permitted under state and federal law.
How Arizona Funds Prevention (And Why It Falls Short)
Homelessness prevention funding in Arizona primarily flows through the federal Emergency Solutions Grant (ESG) program. ESG is essential, but it is constrained by narrow federal rules.
To be eligible for ESG prevention funds, a household must be “imminently at risk of homelessness,” which HUD defines as losing their housing within 14 days. This functions as last-second crisis mitigation rather than true early prevention. It leaves no flexibility for earlier, smaller-scale interventions.
To build a true prevention system, Arizona could:
- Establish a dedicated state Homelessness Prevention Fund distinct from emergency rental assistance, focused on early stabilization, diversion, and flexible financial aid
- Tie housing stability measures to AHCCCS contracts, so managed care organizations (MCOs) are incentivized to invest in housing outcomes as part of health outcomes
- Incentivize local systems to reduce new entries into homelessness each year through performance-based funding
The Economics of Acting Early
Preventing homelessness is fiscally prudent. Public systems in Arizona spend an estimated $20,700 to $66,500 per person per year to provide shelter, healthcare, and crisis services after homelessness occurs. Other national estimates place the cost of chronic homelessness even higher, at $30,000 to $50,000 annually. While exact costs vary by community and population, the cost differential between prevention and crisis response is consistently large across studies.
In contrast, a homelessness prevention or diversion intervention—which can be as simple as a security deposit or a mediated family conflict—often stabilizes a household for a fraction of the cost. For example, Flagstaff Shelter Services reports an average cost of $5,000 to help a household achieve stable housing.
The return on investment is clear:
- Healthcare savings from reduced ER visits and hospitalizations
- Workforce retention when employees don’t lost jobs
- Better educational outcomes for children who remain stably housed
Every dollar spent on prevention saves multiple dollars in crisis response.
Connecting Prevention and Public Health
Housing stability and health outcomes are deeply intertwined. People who lose housing are far more likely to experience chronic illness, hospitalization, and early mortality.
The Arizona Health Care Cost Containment System (AHCCCS) is a national leader in recognizing this connection. Through its Section 1115 Medicaid waiver, Arizona launched the Housing and Health Opportunities (H2O) program to provide housing supports to high-need members.
This program—which can fund services like security deposits, utility payments, and housing navigation—is built on the proven fact that stable housing is a form of healthcare, dramatically reducing costs from ER visits and hospitalizations.
However, the H2O program is currently targeted at a specific, high-acuity population (e.g., members with a Serious Mental Illness who are already homeless or exiting institutions). This is a critical and successful crisis intervention.
The clear next step is to apply this same logic to upstream prevention.
Arizona has already built the mechanism. Now, it must scale it upstream, not broaden eligibility indiscriminately. By leveraging its existing 1115 waiver authority, AHCCCS could empower MCOs to pay for flexible, low-cost prevention services for at-risk members before they ever enter the homelessness system.
The outcome would be fewer hospital readmissions, fewer shelter entries, and better overall health for members—all at a significantly lower cost.
Making Prevention a Core Performance Measure
To embed prevention in Arizona’s response, we must measure success differently. Traditional metrics—shelter occupancy, voucher distribution, housing placements—reward activity after homelessness occurs. Homelessness prevention demands a complementary metric: a reduction in the rate of first-time homelessness
By tracking and rewarding reductions in first-time homelessness (inflow rate), Arizona can incentivize communities to invest in the upstream work that keeps people housed. These metrics must be added to all performance reports for CoCs, ESG, and state-funded programs.
A Framework for an Arizona Prevention Strategy
A statewide prevention framework should be built on five pillars:
- Clear Definition: Adopt a statewide definition of homelessness prevention that distinguishes it from eviction prevention, ensuring clarity across agencies.
- Integrated Data: Connect data from AHCCCS, DES, and CoCs to identify individuals at risk and enable cross-agency alerts.
- Flexible Funding: Provide counties and local coalitions with adaptable funds for early, flexible interventions.
- Cross-System Training: Train caseworkers, landlords, school liaisons, and probation officers to recognize early warning signs.
- Public Accountability: Launch a statewide campaign emphasizing prevention as a shared responsibility and publish transparent metrics showing year-over-year progress.
Conclusion: Success Before Crisis
Arizona has spent years building a system to manage homelessness. Now, we must build a system to prevent it.
Homelessness prevention is the quiet success story we rarely tell. It’s the family that stays housed, the veteran who never enters a shelter, the teen who ages out of foster care into an apartment.
The future of Arizona’s housing stability depends on making these invisible wins the new standard of success. The greatest measure of progress isn’t how many people we help after they lose their home—it’s how few people ever need that help at all.