1 in 10 Arizona Students Is Now an English Learner

Fri, 22 May 2026 12:00:00 GMT

Part of the Arizona Enrollment Series. Updated weekly.

Arizona added 19,501 English learner students between 2021-22 and 2025-26. Over the same four years, the state lost 59,272 students overall. That divergence pushed the English learner share past 10% of total enrollment for the first time in 2024-25, a threshold it held in 2025-26 at 10.3%.

Then, in 2025-26, the count fell. Arizona recorded 110,548 English learners, down 2,977 from the prior year's peak of 113,525. It was the first annual decline in the four-year window during which the state tracks this subgroup. Whether the dip reflects reclassification exits, immigration enforcement effects, or normal fluctuation is not yet clear. What is clear: the structural shift in who Arizona's schools serve has already happened.

The four-year surge

The scale of the growth is difficult to overstate. In 2021-22, Arizona enrolled 91,047 English learners across 1,132,803 total students, an 8.0% share. By 2024-25, the count had climbed to 113,525 out of 1,099,529, a 10.3% share. The 21.4% increase in EL enrollment happened against a 5.2% decline in total enrollment. No other student subgroup grew at anything close to that pace.

The growth was front-loaded. The single largest annual gain came in 2022-23, when 11,672 new EL students appeared in the data, a 12.8% year-over-year jump. Growth slowed to 3.1% the following year, then re-accelerated to 7.2% in 2024-25 before the 2025-26 reversal.

One way to gauge how much of this reflects new arrivals versus broader identification of existing students: EL enrollment as a share of Hispanic enrollment rose from 17.1% in 2021-22 to 20.9% in 2025-26. Hispanic enrollment itself was essentially flat over this period (532,421 to 528,122). That ratio shift, nearly four percentage points, is faster than immigration alone would explain, suggesting that expanded screening or slower reclassification is contributing alongside new enrollment.

The data cannot distinguish between a student who arrived from another country and a student who was already enrolled but newly identified as an English learner. Both appear identically in the EL count. This is a fundamental limitation: a 21% surge could be driven entirely by new arrivals, entirely by identification changes, or by some combination. The most likely answer is both, in unknown proportions.

The districts absorbing the load

Half of Arizona's English learners attend school in just 20 districts. The top 10 alone account for 38,077 EL students, 34.4% of the statewide total, though they enroll a much smaller share of Arizona's overall student body.

Mesa Unified District leads with 6,378 EL students, 12.0% of its enrollment. Tucson Unified District follows at 5,034, or 12.9%. But the districts where EL students constitute the largest share of the student body are smaller, inner-ring Phoenix elementary districts and border communities that operate with far fewer total resources.

Cartwright Elementary District, a west Phoenix district, enrolls 4,622 EL students, 36.5% of its 12,665 total. Isaac Elementary District is at 44.8%. Alhambra Elementary District reached 35.6%, up from 25.8% in 2021-22, a 9.9 percentage-point climb in four years.

At the border, Gadsden Elementary District near San Luis now enrolls more EL students than non-EL: 53.0% of its 5,109 students are classified as English learners.

The Yuma corridor doubled

The most striking district-level shift is at Yuma Union High School District. In 2021-22, 911 of its 11,035 students were English learners, an 8.3% rate. By 2025-26, that count had nearly doubled to 1,799, pushing the EL share to 16.3%. Unlike the inner-ring Phoenix districts, where high EL rates have been the norm for decades, Yuma Union's transformation happened in a compressed window.

The Yuma corridor as a whole shows sustained growth. Somerton Elementary went from 33.9% to 41.0% EL. Yuma Elementary rose from 15.3% to 18.3%. These are border districts where cross-border enrollment and new immigration flow directly into the school system.

Arizona's English-only paradox

These students enter a policy environment unlike any other state's. Arizona is the only state that still mandates structured English immersion under Proposition 203, passed in 2000, which requires English learners to receive instruction primarily in English with limited native-language support. The law has survived two and a half decades while California and Massachusetts repealed their similar measures.

The outcomes are stark. In 2024, 4% of English learners passed the state ELA assessment and 7% passed math, compared to 42% and 34% for all students. The EL graduation rate stands at 55%, 22 points below the statewide 77%.

"It's terrible. It's the worst thing you could do to kids. It really truly is." — Virginia Collier, George Mason University researcher, on Arizona's English-only approach, AZ Luminaria, Nov. 2024

Tucson Unified has pushed against the grain, operating dual language programs at 12 schools where students reportedly outperform mainstream peers in English language arts and math. A legislative effort to repeal Proposition 203's statutory framework, H.C.R. 2021, proposed replacing the English-only model with research-based dual-language options. It was held in committee.

The staffing equation

More EL students require more specialized instruction, and Arizona's teacher pipeline is already depleted. More than 1,000 teachers left the profession since July 2025, with over 4,000 positions covered by long-term substitutes or other part-time arrangements and nearly 1,400 completely vacant. The state does not publish EL-specific vacancy data, but districts where a third or more of students are English learners face the additional challenge of finding certified staff with structured English immersion endorsements.

The instructional programs these students receive carry higher per-pupil costs than general education, including smaller class sizes during immersion blocks, AZELLA testing administration, and monitoring for two years after reclassification. In a state where total enrollment is falling and per-pupil funding follows students out the door, the districts with the fastest-growing EL populations are often the ones losing the most total enrollment.

A broader structural shift

English learners are not the only service population growing as Arizona's overall enrollment contracts. Special education enrollment rose from 144,496 (12.8%) in 2021-22 to 153,898 (14.3%) in 2025-26, a 6.5% increase. The two categories overlap: students can be both English learners and special education recipients, and the data does not permit separating them cleanly. But the directional signal is clear.

Arizona's schools are not simply getting smaller. They are getting smaller and more complex. The students who remain are, on average, more likely to need instructional programs that cost more per pupil than general education. That structural mismatch, fewer students generating less base funding alongside growing demand for specialized services, is the fiscal reality that follows from these enrollment trends.

The 2025-26 dip

The 2,977-student drop in EL enrollment in 2025-26 deserves careful interpretation. Three mechanisms are plausible. First, reclassification: students who passed the AZELLA proficiency assessment in spring 2025 would exit EL status. A strong reclassification year could reduce the count without any change in arrivals. Second, immigration enforcement: the Department of Homeland Security ended its "sensitive locations" policy in January 2025, removing the longstanding restriction on ICE activity near schools. Arizona educators have reported attendance drops and family withdrawals in districts with high immigrant populations. Third, the dip could simply be statistical noise after four years of rapid growth.

The inner-ring Phoenix districts that drove much of the statewide growth also drove the 2025-26 decline. Alhambra Elementary lost 446 EL students, Cartwright lost 344, Mesa Unified lost 297, and Phoenix Union lost 285. Whether those students were reclassified, moved, or stopped attending is not visible in the enrollment snapshot.

The next year's data will clarify whether 2025-26 was a plateau or a turning point. If immigration enforcement continues to intensify, the EL count may fall further, not because fewer students need language services but because fewer families feel safe sending their children to school.

Detailed code that reproduces the analysis and figures in this article is available exclusively to EdTribune subscribers.

Yuma Union High School District - EdTribune AZ - Arizona Education Data