In this series: Connecticut 2025-26 Enrollment.

Correction (April 18, 2026): An earlier version of this article described a 2023-24 enrollment "jump" of 18,643 students. That figure reflected a reporting artifact in the state's TOTAL enrollment row, not a real enrollment gain. LEP enrollment figures have also been corrected. See the milestone article correction for full details.

The Connecticut State Department of Education updated EdSight with 2025-26 enrollment data, and the numbers confirm an accelerating decline: 497,760 students statewide, down 10,640 from the prior year. That is the largest single-year decline since 2007, and it pushed the state below 500,000 students for the first time in more than two decades. After a brief post-COVID plateau from 2022 through 2024, when year-over-year changes were small (+536, -102, -862), the decline has resumed in force.

What the numbers open up

The enrollment data covers roughly 218 districts, from the suburban towns of Fairfield County to the shrinking cities of the Connecticut River Valley. Over the coming weeks, The CTEdTribune will unpack it in a series of data-driven articles. Here is what jumps out first.

Connecticut crossed below 500,000 students for the first time in a generation. The state peaked at 564,499 students in 2011. Fifteen years later, it has lost 66,739 students, an 11.8% decline. Enrollment hovered just above 500,000 during the post-COVID plateau (513,613 in 2022, 513,511 in 2023, 512,649 in 2024) before the 2025-26 cliff broke through.

Hartford lost one in four students and its #1 ranking. The capital city enrolled 21,365 students in 2011. By 2026, that number had fallen to 15,563 — a 27.2% collapse that dropped Hartford from the state's largest district to fourth, behind Bridgeport, Waterbury, and New Haven. The district now faces a $45 million deficit and has hired consultants to recruit 500 students back.

Kindergarten enrollment is down 21% since 2011. Connecticut enrolled 6,543 fewer kindergartners in 2026 than it did in 2011, a pipeline collapse that is now working its way through every grade level. The state's K-to-12th-grade ratio has inverted, with more seniors than kindergartners in a growing number of districts.

By the numbers: 497,760 students statewide in 2025-26 — down 10,640 from the prior year, a 2.1% decline and the largest single-year loss since 2007.

The threads we are following

English learners nearly doubled, then declined. Connecticut's LEP population grew from 30,635 to 57,447 between 2010-11 and 2024-25, an 87.5% increase that reshaped dozens of districts. Then the 2025-26 numbers arrived: LEP enrollment fell by 2,157 to 55,290, the first meaningful decline in over a decade. Advocates point to federal immigration enforcement as a factor.

One in five students now receives special education. The special education share climbed from 12.0% to 19.1% over 15 years, approaching the one-in-five threshold. The growth continued even as total enrollment fell, meaning SpEd is absorbing an ever-larger share of a shrinking system.

White students fell below 50% in 2021 and the gap keeps widening. Connecticut's white student share dropped from 61.5% in 2011 to 44.7% in 2026, a 16.8 percentage point decline. The state lost 124,518 white students in 15 years. The majority-minority wave that began in cities like Hartford and Bridgeport has reached the suburbs.

What comes next

This is the first in a series of articles examining what the 2025-26 enrollment data reveals about Connecticut's public schools. New articles publish weekly on Thursdays.

The enrollment figures come from the CSDE EdSight portal. The data covers headcount enrollment for public school districts statewide.

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