Correction (October 8, 2026): The growth comparison now uses a defined population of complete organization histories, rather than an unverified traditional-district classification. Unsupported relocation explanations and forecasts have been removed, and demographic changes use matching school-year endpoints.

School District 27J^↗ET recorded 24,290 students in 2025–2026, last school year's membership and the most recent published data. That was 7,187 more students than the 17,103 reported in 2014–2015, an increase of 42.0%.

Over the same original annual-file history, Colorado lost 18,213 students, or 2.0%. These contrasting totals show that enrollment did not move in the same direction everywhere. They do not show that students lost elsewhere moved into 27J.

The Colorado Department of Education's membership page links the annual enrollment collection. This comparison keeps each year's original file vintage rather than inserting later landing-page revisions into the history.

Annual growth varied

The district added 2,085 students between 2014–2015 and 2020–2021, then another 5,102 between 2020–2021 and 2025–2026. Those intervals contain different numbers of annual comparisons, so their cumulative gains should not be treated as directly comparable annual rates.

Membership fell by 60 students in 2020–2021, then grew by 1,150 in 2021–2022 and 2,349 in 2022–2023. The latter was the largest annual gain in the checked history.

Later additions varied: 421 students in 2023–2024, 906 in 2024–2025 and 276 in 2025–2026. The final gain was smaller than the preceding year's, but the recent sequence was not a steady annual slowdown. It does not establish a housing cycle or approaching enrollment ceiling.

A defined comparison population

Among 185 reported organizations with complete histories for the same identifiers throughout the checked period, 27J had the second-largest absolute net gain. This population includes different kinds of reporting organizations; the ranking is not a claim about a separately verified group of traditional districts.

27J's share of published statewide membership rose from 1.9% to 2.8% between the endpoints. Both shares use the state's independently published total for the corresponding year.

Selected peers also gained membership over that full window. Weld RE-4^↗ET increased by 74.1%. Greeley 6^↗ET gained 1,595 students, and Johnstown-Milliken RE-5J^↗ET increased by 12.7%. These are named comparisons, rather than proof of a complete geographic growth corridor or a common transfer mechanism.

Category counts and shares changed together

Between 2015–2016 and 2025–2026, Hispanic membership increased from 7,609 to 12,782 students, a gain of 5,173. Its share rose from 44.6% to 52.6% of the district's published total.

White membership also increased, from 8,056 to 8,599, a gain of 543 students. Its share nevertheless declined from 47.3% to 35.4%, because the overall district count grew faster over those matching endpoints.

The reported racial categories reconcile to published district membership in each checked year. The percentages use that published total, rather than a subtotal of selected categories.

These records establish changes in total and category membership. They do not identify the contribution of residential construction, transfers or changes in how families report a student's category. Future enrollment likewise requires future annual records; the size of an earlier gain does not determine what comes next.

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