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New Orleans’ post-Katrina school reforms were followed by substantial improvements in average achievement, graduation, and college outcomes, and recent local data show gains well above early-2000s levels on several measures. The record is not a simple charter-school success story or a ready-made blueprint: the evidence concerns a broad reform package, results have stabilized on some measures, disparities remain, and researchers say the city’s unusual conditions make its effects unlikely to transfer wholesale to most districts.
What changed after Katrina
Hurricane Katrina devastated New Orleans in 2005. In its aftermath, Louisiana reshaped who governed the city’s public schools and how they operated. According to NOLA Public Schools’ 2025 Katrina20 chronology, the Legislature passed Act 35 that year, transferring 112 of the city’s 128 schools to the state-run Recovery School District (RSD). Many were converted into charter schools as the city worked to reopen its schools.
Governance later returned to local control. NOLA Public Schools describes the contemporary system as made up almost entirely of charter schools under a single authorizer, the Orleans Parish School Board. A 2025 Cowen Institute report summary counted 73 charter schools among 74 public schools—a dated snapshot, not a permanent count.
The district describes its system’s design principles as educator autonomy, accountability standards, family access to schools, and equity. Those are stated aims, not proof that each has been fully achieved.
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What the outcome evidence says
The evidence is strongest when two kinds of results are kept distinct: research estimates of the reforms’ effects and administrative comparisons of outcomes at different points in time. The first try to estimate what changed because of the reform package; the second describe what happened to particular cohorts or scores, without by themselves establishing why.
Estimated effects in the first decade
The Education Research Alliance for New Orleans (ERA-New Orleans), in a policy brief published in 2018, reported estimated reform effects of 11–16 percentile points in student achievement, 3–9 percentage points in high-school graduation, 8–15 percentage points in college entry, 4–7 percentage points in college persistence, and 3–5 percentage points in college graduation. Achievement estimates varied by subject and analytical method. These are ranges from the brief’s estimates, not a single result for every student or school.
ERA-New Orleans’ 2025 synthesis of two decades of lessons says average achievement, high-school graduation, college entry, and college graduation improved substantially in the first decade after implementation, while student outcomes later stabilized. The findings concern the reform package and a changing school system; they do not establish that charter conversion alone caused the gains.
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Longer-run local comparisons
NOLA Public Schools’ K20 dashboard, accessed in 2026 and based on Louisiana Department of Education data, reports a 79% graduation rate for the class of 2023, compared with 54% for the class of 2004. It reports that 65% of 2023 graduates enrolled in college the following fall, compared with 37% of 2004 graduates; the dashboard defines college enrollment as entering in the fall semester after graduation. These cohort comparisons show how the reported rates changed, not the isolated causal effect of a particular policy.
A 2025 Cowen Institute report summary says 65% of New Orleans eighth graders scored Basic or above in English language arts in 2024, up from 26% in 2004. This is a descriptive comparison across years and assessments, not the same measure as ERA-New Orleans’ estimated achievement effects.
NOLA Public Schools reports that from 2021 to 2024, the share of students reaching “Mastery and Above” on LEAP assessments rose by 8 percentage points in ELA and 10 percentage points in math. The district says those rates of improvement were double the state’s. For the 2024–25 school year, its K20 dashboard reports no failing schools, compared with 61% of New Orleans public schools rated failing or “Academically Unacceptable” in 2005. The rating labels and accountability systems changed, so those school-rating figures are not a like-for-like measure.
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How the reforms may have contributed
ERA-New Orleans identifies the gradual closure and takeover of low-performing schools as a key factor behind average academic improvement. Its research also emphasizes the importance of how schools are held accountable. Ratings based heavily on average scores can disadvantage schools serving students who begin at lower achievement levels; value-added measures instead account for students’ growth from an initial level.
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Who benefited, and what remains unresolved
ERA-New Orleans finds that opportunity gaps narrowed for Black and low-income students in graduation and college outcomes. Evidence on test-score gaps is mixed, and wide gaps by race and socioeconomic status remain. Its synthesis also identifies unintended consequences involving discipline and income-based school segregation. Citywide averages therefore cannot stand in for outcomes across student groups.
The local student population also changed. NOLA Public Schools’ K20 dashboard reports that Hispanic students rose from 1% of enrollment in 2004 to 13% in 2024. It reports that economically disadvantaged students increased from 77% in 2004 to 82% currently, while cautioning that Louisiana changed its poverty indicator in 2014; the measures are similar, but not identical.
The dashboard says the city has roughly 20,000 fewer students than in 2005. Enrollment fell sharply after Katrina, recovered to a 2019 high, and has since declined. NOLA Public Schools attributes the current picture partly to the city’s post-Katrina population decline and nationwide falling birth rates. The Cowen Institute’s 2025 account also names declining enrollment, a citywide teacher shortage, and economic disparities in student outcomes as current challenges.
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Why New Orleans is not a plug-and-play model
ERA-New Orleans cautions that the substantial estimated effects are unlikely to be reproduced in most other districts because New Orleans had unusual advantages for implementing its reforms. The evidence makes the city a useful case for studying system change, not a guarantee that copying its governance structure or charter-school arrangements will deliver the same results elsewhere.
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For another district, the practical questions are whether it has the governance capacity, workforce stability, funding, and implementation conditions to sustain major changes—and how it will monitor both outcomes and harms. A fair comparison should examine achievement, graduation, college entry and completion over time; results by student group; school closures and transitions; discipline and segregation; and whether accountability measures capture growth as well as average performance.
New Orleans offers evidence that large-scale change can coincide with sizable gains across important student outcomes. It also shows why a recovery should be judged over time, across groups, and alongside the costs and conditions that shape it.
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