Sanborn Elementary School

Set in LONGMONT, Colorado, Sanborn Elementary School is a modestly sized K-5 school, one of the schools within St. Vrain Valley School District No. Re1J. It serves 209 students across grades pre-K through 5. Compared to the state average of about 379 students per school, that is 45% leaner than typical.

St. Vrain Valley School District No. Re1J runs 54 schools in total, collectively educating 31,607 students. Sanborn Elementary School is one of those campuses.

On demographics, Sanborn Elementary School lists that 50% of students identify as White, with the remaining enrollment distributed across several groups. Other groups include 45% Hispanic, 3% multiracial. That is visibly less White than the county at large, where the share is closer to 78%.

In terms of school funding signals, Sanborn Elementary School lists 17 full-time-equivalent teachers, putting the student-to-teacher ratio at about 12.3:1. That figure is tighter than the state norm's 16.6:1 average. Roughly 63% of students at Sanborn Elementary School qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is north of Boulder County's rate of about 33%.

On a residual basis (actual vs predicted given the student mix), Sanborn Elementary School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 28.7%, the actual is 37.5%, a residual of +8.8 points.

Across the wider county, census data for Boulder County shows median household earnings sit near $103,994, roughly 64% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 4%. Across Boulder County's 86 public schools (combined enrollment of about 42,200 students), Sanborn Elementary School is one campus in the mix.

The closest other public school is Northridge Elementary School, roughly 0.7 miles away. Counting just inside five miles, 8 other public schools cluster around Sanborn Elementary School. Ranking that nearby cluster on reported proficiency puts Sanborn Elementary School at 4th of 8; the average score across the group is 33.3%.

Sanborn Elementary School operates from an outer-ring location.

Looking at the recent track record. Over the past 7-year window, the student count decreased 51%: 426 students in 2018 compared to 209 in 2025. Over the same period, the White share edged down from 61% to 50%. The student-to-teacher ratio tightened from 16.5:1 in 2018 to 12.3:1 today.

In the discussion threads here, posts here usually surface around pickup logistics, teacher feedback, and after-school programs. The community welcomes input from current and former families.