Semper Elementary School

Set in WESTMINSTER, Colorado, Semper Elementary School is a small elementary school, part of Jefferson County School District No. R-1. It educates 314 students across grades pre-K through 5.

Within Jefferson County School District No. R-1, which oversees 148 schools and 74,935 students, Semper Elementary School is one campus in the system.

For racial and ethnic makeup, Semper Elementary School records that 49% of students identify as White, with the remaining enrollment distributed across several groups; the rest comes out to 35% Hispanic, 8% Asian, 5% multiracial. The wider county runs roughly 80% White, putting the school's mix noticeably less White than the area baseline.

Looking at school resources, Staff filings list 18 full-time-equivalent teachers, which works out to roughly 17.4:1 students per teacher. The state averages around 16.6:1, so this campus is higher than the state norm typical. An estimated 45% of students are eligible for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. Set against Jefferson County (around 32%), the school's rate is somewhat above typical.

With demographic context factored in, Semper Elementary School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 39.3%; this one delivers 27.8%.

Across the wider county, community-level numbers for Jefferson County indicate median household income runs about $110,656, roughly 52% of adults have completed at least a four-year degree, and roughly 4% of residents live below the federal poverty line. Semper Elementary School is one of 168 public schools in Jefferson County (combined enrollment of about 74,739 students).

Nearest neighbor: Mandalay Middle School, around 0.3 miles off. Within five miles, there are 8 other public schools. Among the 8 schools in that immediate cluster with test data (this one included), Semper Elementary School ranks 6th on composite proficiency, beneath the local average of 38.3%.

Semper Elementary School operates from a bedroom-community location.

Over the past 7-year window. Over the past 7-year window, the student count ticked down 22%: 403 students in 2018 compared to 314 in 2025. Over the same period, the White share edged down from 58% to 49%.

In the discussion threads here, members of the Semper Elementary School community share and discuss pickup logistics, teacher feedback, and after-school programs. Members of the school community can share what they know.