CAPITAL SENIOR HIGH SCHOOL

CAPITAL SENIOR HIGH SCHOOL is one of the sizable secondary schools in BOISE, Idaho, operated by BOISE INDEPENDENT DISTRICT, with 1,170 students on its rolls from grades 9 through 12. Compared to the state average of about 455 students per school, that is 157% larger than typical.

BOISE INDEPENDENT DISTRICT comprises 52 schools with combined enrollment of 22,134 students; CAPITAL SENIOR HIGH SCHOOL is among them.

For racial and ethnic makeup, CAPITAL SENIOR HIGH SCHOOL logs that 59% of the student body identifies as White. Other groups include 25% Hispanic, 7% Black, 5% multiracial, 4% Asian. That is meaningfully less White than the county at large, where the share is closer to 83%.

Looking at the economic backdrop, On paper, CAPITAL SENIOR HIGH SCHOOL has 73 full-time-equivalent teachers, translating to a class-load average of around 16.0:1. That tracks the state average closely. An estimated 36% of students are eligible for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal.

In the broader community, census data for Ada County shows median household income runs about $91,502, roughly 45% of adults have completed at least a four-year degree, and roughly 5% of residents live below the federal poverty line. Across Ada County's 156 public schools (combined enrollment of about 80,006 students), CAPITAL SENIOR HIGH SCHOOL is one campus in the mix.

Nearest neighbor: IDAHO CONNECTS ONLINE SCHOOL, around 0.4 miles off. Counting just inside five miles, 8 other public schools cluster around CAPITAL SENIOR HIGH SCHOOL.

The campus sits in an urban setting.

Looking at the recent track record. Over the past 7-year window, the student count shrank 12%: 1,325 students in 2018 compared to 1,170 in 2025. The White share of enrollment edged down from 71% to 59% over that span. The student-to-teacher ratio tightened from 17.0:1 in 2018 to 16.0:1 today.

On this page, members of the CAPITAL SENIOR HIGH SCHOOL community share and discuss open house dates, ride-share offers, and field-trip permission slips. Contributors range from current parents to recent graduates and teachers.