The headline
Hundreds of US public schools still operate with fewer than 25 students. A smaller number operate with fewer than 10. The smallest in the country routinely report enrollments of 1 to 5 students.
Most of these are not "small schools" in the conventional sense. They are alternative-program schools, juvenile-detention schools, hospital schools, online-academy storefronts, and area technology centers reported under their own NCES ID. The genuinely small brick-and-mortar schools (the one-teacher schoolhouses still serving rural communities) are a smaller subset.
What "smallest" actually captures
The smallest-enrollment list in NCES data is dominated by:
- Alternative learning programs reported as separate schools: credit-recovery centers, drop-out reengagement programs, juvenile detention education programs.
- Career and technology centers that operate as shared facilities serving students from multiple home schools, with very few students officially "enrolled" at the CTC itself.
- Virtual charter storefronts registered as schools but actually serving as enrollment points for students dispersed across the state.
- Genuine rural one-room and two-room schools in Alaska, Montana, Wyoming, the Dakotas, Vermont, Maine, and remote islands.
The genuine small schools
The genuine small schools (those with a building, a teacher, and a small cohort of students) remain a distinctive piece of US K-12 infrastructure. Alaska's bush schools, Vermont's small village schools, Montana's prairie schools, and a handful of island and reservation schools each serve communities where the alternative would be a 60+ minute bus ride or no school at all.
Per-pupil costs at these schools are very high. The student-teacher ratios are necessarily low. The educational experience is different from a typical American elementary or secondary school, for better and for worse.
What gets lost in consolidation
The conversation about US school consolidation rarely engages seriously with what is lost when a 12-student schoolhouse closes and the students are bussed an hour to a 200-student building. The data on these small schools is useful both for that conversation and for tracking the continued attrition of America's rural school infrastructure.
Methodology
Source: NCES Common Core of Data 2024-25. Genuinely small brick-and-mortar schools are flagged separately from alternative programs and administrative shell entries by cross-referencing school level, grade range, and reported teacher count.