Sierra Elementary School

Sierra Elementary School is an average-sized elementary-level community in ARVADA, Colorado, one of the schools within Jefferson County School District No. R-1. The school hosts 493 students in grades pre-K through 5. Compared to the state average of about 379 students per school, that is 30% above typical.

Jefferson County School District No. R-1 comprises 148 schools with combined enrollment of 74,935 students; Sierra Elementary School is among them.

On demographics, Sierra Elementary School reports that 79% of the student body identifies as White. Beyond that, the school reports 16% Hispanic, 4% multiracial. That composition is broadly in line with Jefferson County as a whole.

In terms of school funding signals, Sierra Elementary School records 28 full-time-equivalent teachers, putting the student-to-teacher ratio at about 17.6:1. Statewide, the average ratio sits near 16.6:1, putting Sierra Elementary School higher than the state norm the norm. An estimated 13% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Jefferson County runs at roughly 32%, so the school's eligibility rate is lower than the surrounding baseline.

With demographic context factored in, Sierra Elementary School performs roughly as the BeatsExpectations model predicts for a school with this FRL share. The predicted value is around 59.1%, the actual is 65.4%, a residual of +6.3 points.

In the area at large, census data for Jefferson County shows median household income runs about $110,656, roughly 52% of adults have completed at least a four-year degree, and census figures put the poverty rate at about 4%. Across Jefferson County's 168 public schools (combined enrollment of about 74,739 students), Sierra Elementary School is one campus in the mix.

The closest other public school is Oberon Middle School, roughly 0.6 miles away. 8 of the 8 nearest public schools sit inside a five-mile radius. Ranking that nearby cluster on reported proficiency puts Sierra Elementary School at 1st of 8; the average score across the group is 48.6%.

Sierra Elementary School operates from a commuter-belt location.

Trend over the last 7 years. Over the past 7-year window, the student count edged down 9%: 541 students in 2018 compared to 493 in 2025. White enrollment moved from 84% to 79% across the same window. Class-load math has tightened: from 19.2:1 in 2018 to 17.6:1 in 2025.

Within the allk12 community for this school, posts here usually surface around enrollment questions, classroom assignments, and PTA news. The community welcomes input from current and former families.