In the Kau-Keaau-Pahoa complex area on Hawaii Island, half of the students in foster care who entered high school four years ago did not walk at graduation. The overall rate there is 82.6%. For students in foster care, it is 50%.

That 32.6 percentage point gap is not the worst in the state. In Leilehua-Mililani-Waialua, a suburban stretch of central Oahu where 92.5% of all students graduate, the foster care rate is 53.3%, a gap of 39.2 points. The complex area's overall rate is among the highest in Hawaii. Its foster care rate is among the lowest.

The only line going down

Statewide, Hawaii's foster care graduation rate has fallen from 76.3% in 2018 to 60.4% in 2025. That is a 15.9 percentage point decline across seven years.

During the same period, the overall graduation rate climbed 3.2 points to 85.8%. The gap between students in foster care and their peers widened from 6.3 points in 2018 to 25.4 points in 2025. Put differently, the chasm quadrupled.

No other student group in Hawaii moved in this direction. Students who are currently homeless gained 15.0 points over the same span, rising from 61.7% to 76.7%. Special education students gained 9.9 points since 2010. English learners gained 2.5 points. Foster care is the only subgroup the state tracks where graduation rates fell over this period, and the decline was not small.

A gap unlike any other

At 25.4 points below the state average, foster care produces the widest graduation gap of any subgroup Hawaii reports, wider than special education (17.7 points below), wider than Pacific Islander students (17.4 points), wider than English learners (14.5 points).

The comparison to students who are currently homeless is instructive. In 2018, students in foster care graduated at 76.3% while youth who were homeless trailed at 61.7%. By 2025, students who are currently homeless had climbed to 76.7% while students in foster care fell to 60.4%. The group that was 14.6 points ahead is now 16.3 points behind. Whatever support structures lifted outcomes for students who are currently homeless over the past seven years did not reach, or did not work for, students cycling through foster placements.

Six of nine complex areas below 60%

Only nine of Hawaii's 16 complex areas reported enough students in foster care for the state to publish a graduation rate in 2025. In six of those nine, fewer than 60% of students in foster care graduated.

Kau-Keaau-Pahoa, at the southern tip of Hawaii Island, posted 50.0%. Hilo-Waiakea was close behind at 52.6%. Leilehua-Mililani-Waialua, covering suburban Oahu from Wahiawa to the North Shore, posted 53.3%. The urban Honolulu complex area of Kaimuki-McKinley-Roosevelt graduated 54.5%. On the west side, Campbell-Kapolei posted 58.3%. On Maui, Baldwin-Kekaulike-Kulanihakoi came in at 58.8%.

The one outlier: Honokaa-Kealakehe-Kohala-Konawaena, the West Hawaii complex area, posted 91.6%. Small sample sizes at the complex area level can produce swings this large from year to year, and this area's foster care rate has bounced from 50.0% in 2023 to 61.9% in 2024 to 91.6% in 2025. Single-year rates for individual complex areas should be read with caution.

Why the trajectory diverged

The year-over-year data reveals how volatile this population is. Foster care graduation rates dropped 19.4 points between 2018 and 2019, then fell another 13.2 points to a nadir of 43.7% in 2020. The pandemic year hit students in foster care far harder than any other group: the overall rate that year was 85.1%.

A partial rebound to 69.3% arrived in 2021, but the recovery stalled. Since then, the rate has declined each year: 67.3% in 2022, 63.1% in 2023, 63.0% in 2024, 60.4% in 2025. Four consecutive years of decline after a partial COVID recovery suggests something structural, not just pandemic aftershock.

School placement instability is the most widely documented mechanism. Federal guidance updated in November 2024 from the U.S. Department of Education notes that "adverse academic outcomes are often connected to the unique experiences of students in foster care, most notably the high rates of residential and school instability." Each placement change can mean a new school, new teachers, lost credits, and broken relationships with the adults who track academic progress.

Hawaii's child welfare system has faced acute staffing shortages that compound this instability. Honolulu Civil Beat reported in January 2025 that 37% of all child welfare positions were vacant, with assessment worker vacancies at 46%. The statewide average caseload was 34 cases per worker. On Maui, assessment workers averaged 80 cases each.

"Hawaiʻi is relieved that the number of children in foster care has been declining, but CWSB is not confident that this number will continue to decline." -- Hawaii Department of Human Services, APSR FFY 2025

Understaffed caseworkers carrying caseloads that dwarf national benchmarks have less time to coordinate with schools on credit transfers, enrollment continuity, and educational best-interest determinations. The Every Student Succeeds Act requires a designated point of contact at each local educational agency for youth in foster care, but Hawaii's single-district structure means those roles are distributed across complex areas. When caseworker capacity drops, the school-side coordination it depends on frays.

A population that is shrinking but struggling more

The number of children in Hawaii's foster care system has dropped significantly, from approximately 5,200 two decades ago to 1,959 in fiscal year 2023, a 20-year low. The state attributes this decline to a "shift in mindset among staff" and the Family First Hawaii initiative, which prioritizes keeping children with families.

This creates a paradox: the foster care population is smaller, but the students who remain in the system are graduating at worse rates than when the population was larger. One possible explanation is that as the state diverts lower-acuity cases to family preservation, the children who do enter foster care have more severe circumstances, more disrupted home lives, more placement changes, more barriers to educational continuity.

There is also a racial dimension. Native Hawaiians make up about one-third of the state's child population but roughly half of foster care cases. Native Hawaiian students already graduate at 80.3%, 5.5 points below the state average. When foster care layered on top of existing disparities pushes a student's expected graduation probability below 60%, the compounding effect is severe.

What the legislature is watching

The 2026 legislative session has several bills targeting the child welfare system. Honolulu Civil Beat reported in April 2026 that HB 1565, sponsored by Rep. Lisa Marten, would create a pilot program assigning lawyers to represent youth in foster care. SB 3204 would fund five "peer support resource navigators" through $600,000 in federal TANF dollars. HB 1805, co-sponsored by 20 lawmakers, would have established an Office of the Child Advocate, though it failed after a dispute over where to house it.

None of these bills directly addresses educational outcomes. The graduation rate gap is not invisible to policymakers: Hawaii is one of 16 states that report graduation rates for youth in foster care on school report cards. But the data flows into report cards while the legislative energy flows toward child welfare staffing, family preservation, and legal representation.

Patty Chin, who spent six years in foster care across multiple homes and shelters on Oahu before aging out, now manages HI H.O.P.E.S. (Hawaii Helping Our People Envision Success), a program serving youth ages 14 to 26 with foster care experience. Her assessment of what families need is simpler than any policy framework: "the ability to know where to go to break their own generational cycle."

Placement instability and the numbers behind it

Graduation rates for students in foster care are published only when enough students are in the cohort for the rate to be reportable without identifying individuals. Seven of Hawaii's 16 complex areas did not have enough seniors in foster care in 2025 to publish a rate. The statewide rate of 60.4% is the aggregated figure, but it obscures severe variation: from 50.0% in Kau-Keaau-Pahoa to 91.6% in Honokaa-Kealakehe-Kohala-Konawaena. Without cohort counts, which the state does not publish, it is impossible to calculate how many individual students these rates represent.

What is clear is directionality. The foster care graduation rate has declined in four of the last five years. The gap to the state average has widened every year since 2021. Every other vulnerable student group that Hawaii tracks has improved or held steady. Foster care is moving the wrong way.

The question for the 2026-27 school year is whether the legislative attention on family preservation and caseworker staffing eventually translates into educational stability for the students who are still in the system. The graduation data suggests those students are not waiting.

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