Thunder Basin High School

Set in Gillette, Wyoming, Thunder Basin High School is a substantial high school, operated by Campbell County School District #1. It educates 1,206 students across grades 9 through 12. By comparison, Wyoming's public schools average about 346 students each, so Thunder Basin High School sits 249% bigger than that benchmark.

Within Campbell County School District #1, which oversees 23 schools and 8,459 students, Thunder Basin High School is one campus in the system.

On demographics, Thunder Basin High School records that nearly all students (84%) are White; the rest comes out to 12% Hispanic. That mix tracks the wider county fairly closely.

Looking at school resources, Staff filings list 75 full-time-equivalent teachers, which works out to roughly 16.2:1 students per teacher. Statewide, the average ratio sits near 11.4:1, putting Thunder Basin High School higher than the state norm the norm. Roughly 28% of students at Thunder Basin High School qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is south of Campbell County's rate of about 42%.

On a demographically-adjusted basis, Thunder Basin High School tracks the demographic baseline. The model predicts 63.8% given the school's FRL share; actual proficiency is 50.8%.

Across the wider county, community-level numbers for Campbell County indicate median household earnings sit near $89,869, roughly 23% of adults have completed at least a four-year degree, and roughly 6% of residents live below the federal poverty line. Across Campbell County's 25 public schools (combined enrollment of about 8,459 students), Thunder Basin High School is one campus in the mix.

The closest other public school is Westwood High School, roughly 0.5 miles away. Counting just inside five miles, 8 other public schools cluster around Thunder Basin High School. Among the 7 schools in that immediate cluster with test data (this one included), Thunder Basin High School ranks 6th on composite proficiency, below the local average of 56.1%.

Geographically, the school is in a small-town area.

Over the past 7-year window. Over the past 7-year window, the student count grew 12%: 1,076 students in 2018 compared to 1,206 in 2025. The Hispanic share of enrollment increased from 8% to 12% over that span.

Within the allk12 community for this school, members of the Thunder Basin High School community share and discuss enrollment questions, classroom assignments, and PTA news. Parents, students, alumni, and staff are welcome to weigh in.