Bozeman HS Grew 32% While Montana Shrank

Mon, 30 Mar 2026 12:00:00 GMT

In 2017, Bozeman voters approved a $125 million bond to build a second high school. By the time Gallatin High opened its doors in fall 2020, the city's population had grown 43% in a decade. The bet was that the students would keep coming.

Eight years into the data, they have. Bozeman H S^↗ district, which operates both Bozeman High and Gallatin High, has grown every single year since 2018, adding 687 students for a 31.8% gain. No other district in Montana has matched that streak. The second-longest current growth run, six years, belongs to Denton Elem, a district of 44 students in rural Fergus County.

A staircase in a state that's falling

Montana lost 8,502 public school students between 2023 and 2026, the sharpest three-year decline in the nine years of available data. Statewide enrollment sits at 142,071, its lowest point on record.

Bozeman HS went the other direction. Its enrollment climbed from 2,157 in 2018 to 2,844 in 2026. The biggest single-year jump, 146 students, came in 2021, the year Gallatin High opened and absorbed freshmen, sophomores, and juniors from the newly divided attendance boundaries. But the growth did not stop after that redistribution settled. The district added 109 more students in 2022, 126 in 2023, and 112 in 2024.

The pace slowed in 2025 to 45 students, then ticked back up to 63 in 2026. Even at its weakest, the district grew. The state, by contrast, lost 4,068 students in 2025 alone.

But the recent growth isn't entirely organic. In 2025, Montana mandated open enrollment, removing districts' ability to turn away nonresident students. Bozeman now enrolls 177 nonresident students, 124 of them from Belgrade. "Without that change, overall enrollment in Bozeman would have decreased, not increased," Waterman said. A similar dynamic exists at the elementary level: recent legislation allowing public schools to serve three- and four-year-olds has padded K-5 numbers. "Without those newly authorized programs," Waterman said, "this year's Bozeman's K-5 enrollment would have decreased — not increased — overall."

The growth streak is real. But its most recent chapters owe as much to legislative changes as to population growth.

Bozeman HS now accounts for 2.0% of all Montana public school enrollment, up from 1.47% in 2018. That number is small in absolute terms, but the trajectory is striking: a district growing 35 percentage points faster than the state it sits in.

Two Bozemans

Montana's split-district structure, a legacy of rural governance where communities created separate elementary and high school districts, makes Bozeman's story unusually legible. The elementary district and the high school district serve the same community, but their enrollment curves have diverged sharply.

Bozeman Elem^↗ peaked at 4,888 students in 2020. It has since fallen to 4,587, a decline of 301 students from that peak, and sits 118 below its 2018 level. While not at an all-time low (that was 4,496 in the COVID year of 2021), the elementary district has been flat or declining for four of the last six years.

The indexed view makes the divergence visible. Bozeman HS has climbed to 131.8 on an index where 2018 equals 100. Bozeman Elem hovers near 97.5. The same city, the same housing market, the same population boom, two different enrollment stories.

Mike Waterman, the district's executive director of business and operations, put a number on it. "Kindergarten classes for the four years immediately preceding the pandemic averaged 517 students, but in the years since, that average has dropped to 467 students," Waterman said. "We have this information well in advance, so these smaller class sizes are something we've long been anticipating."

The birth rates behind those smaller classes have been visible for years. "Local birth rates dropped every year from 2016-2020," Waterman said. A pandemic-era spike produced temporarily larger cohorts, but births have since resumed their decline. Those pre-pandemic children are the ones filling Bozeman and Gallatin High right now. When the smaller post-2016 cohorts reach ninth grade around 2030, the high school pipeline narrows.

The district sees the math clearly. "We expect enrollment to flatten out at all grade bands and, as a result, our building capacity will likely be sufficient for the foreseeable future," Waterman said.

The housing market reinforces this pattern. Median home prices in Bozeman reached $711,000 as of spring 2025, with single-family homes averaging $932,000. Between 2018 and 2023, Montana's median home sales price rose 89.6% while median household income rose only 27.9%. New families with young children are a different economic proposition than the established households whose teenagers are already enrolled.

The Gallatin Valley corridor

Bozeman did not grow in isolation. East Helena K-12^↗, about 90 miles northwest and increasingly a commuter community for workers priced out of both Bozeman and Helena, has surged 57.6% since 2018, from 1,230 students to 1,938. Voters there approved a $12 million bond to build a new elementary school and add classrooms at the middle school. As of late 2024, the community had roughly 980 new homes proposed in subdivisions over the next five to 10 years.

Belgrade^↗, the community closest to Bozeman and once part of the same growth story, has reversed. Combined Belgrade Elem and Belgrade H S^↗ enrollment peaked at 3,489 in 2020 and has since fallen 13.0% to 3,036 by 2026. Part of that drop is now quantifiable: 124 Belgrade students currently attend Bozeman under the new open enrollment mandate. The Bozeman Daily Chronicle reported Belgrade's population growth rate dropped from 8.1% in 2021 to 2.3% by 2024, but the open enrollment mandate means some of Belgrade's enrollment loss is literally Bozeman's gain.

Two campuses, one identity

Bozeman and Gallatin High are more alike than their rivalries suggest. "Each building has its own unique culture and identity, which creates healthy competition and rivalry," Waterman said. "At the same time, they're both extremely collaborative and row together on key district initiatives."

The district invested heavily in making the split equitable. "Great foresight and planning went into establishing enrollment boundaries that made the buildings as equitable as possible in terms of student numbers, demographics," Waterman said. The gap between the two schools has narrowed from 92 students last year to 87 this fall, and free and reduced lunch rates are comparable — 16% at Bozeman High, 20% at Gallatin. The current junior class represents the widest enrollment disparity between the buildings; once that cohort graduates, future classes are expected to be roughly the same size.

Bozeman against the field

Among Montana's major high school districts, Bozeman's 31.8% growth since 2018 stands alone. The next-closest, Missoula HS, gained 6.1%. Billings HS, the state's largest, barely moved: up 1.1%, or 58 students, over eight years. Great Falls HS grew 1.0%. Helena HS lost 15.7%, shedding 451 students.

The elementary picture across those same cities is uniformly bleak. Billings Elem (10,737), Great Falls Elem (6,668), Missoula Elem (4,962), Helena Elem (4,836), and Butte Elem (2,834) are all at their lowest enrollment on record. Belgrade Elem (2,129) also hit its all-time low. Six of Montana's eight largest elementary districts are at record lows simultaneously.

Bozeman Elem is not among them. It sits 91 students above its 2021 trough. But the direction since 2020 has been consistently down.

What powers the streak

Gallatin County added roughly 1,055 residents between 2023 and 2024 and about 8,000 over the four-year span since 2020. Notably, about a quarter of Gallatin County's recent population growth came from natural increase, with births (1,141) exceeding deaths (686). The county's younger demographic profile distinguishes it from Flathead County, where migration drove virtually all growth.

Bozeman's tech sector has been a pull factor. The Montana High Tech Business Alliance has consistently ranked Bozeman among the state's leading employment centers for technology jobs, attracting the kind of young professionals whose children are now aging into the high school pipeline.

But Waterman sees a broader flattening across the valley. "K-12 enrollment has leveled off, even though the area continues to grow," he said. That holds across public, private, and home school enrollment in Gallatin County — all three have been flat since 2020. "We don't have data to support this claim," Waterman said, "but believe it's largely a cost of living issue: families with school-aged children simply can't afford to live here."

The growth engine is cooling. Montana Free Press reported that domestic in-migration to Montana fell 75% in 2024 compared to 2021. Bozeman's population growth rate dropped from nearly 3% in 2021 to 1.4% by 2024. The year-over-year enrollment gains at Bozeman HS tell a similar story of deceleration: from triple-digit annual additions in 2021-2024 to 45 and 63 in the last two years.

What the elementary numbers signal

Montana's school funding formula ties most of its budget calculations to ANB, the average number of students belonging to a district on two count days. For Bozeman HS, eight years of growth have meant eight years of expanding budgets. The district could afford a $125 million bond and a second high school because the students were there to justify it.

The elementary numbers are a leading indicator of what comes next. The cohorts now filling Bozeman's K-5 classrooms are smaller than the ones graduating from Gallatin and Bozeman High. When those smaller elementary classes reach ninth grade around 2030 or 2031, the high school district will face the same arithmetic that has already caught up with Great Falls, Helena, and Billings. Bozeman's administrators have said as much publicly.

Whether the streak ends at eight years or stretches a few more depends on variables no enrollment dataset fully captures: how many families can still afford to move to a city where the average single-family home costs nearly a million dollars, and how much of the recent growth reflects real demand versus legislative artifacts that redistributed students who were already in the system.

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

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