Campbell County High School
Gillette, WY · High School · Grades 9-12
Campbell County High School is a high school in Gillette, WY with 1,187 students enrolled and a 56% proficiency rate. Part of Campbell County School District #1. NCES data from the U.S. Department of Education.
Campbell County High School is a high school in Gillette, WY, enrolling 1,187 students in grades 9-12 within the Campbell County School District #1. That headcount is above the 375-student average for schools in the district.
EDFacts assessment data puts 56% of students at or above grade level in combined math and reading, a little above the national midpoint where roughly half of tested students clear the bar. That tracks the 56% district average closely, within a few points either way. That is in line with the 55% Wyoming statewide average.
Over the last three reported years the district proficiency rate this school inherits has risen by about 21 points. As a high school, it reports a 84% adjusted-cohort graduation rate, the share of first-time ninth-graders who earn a regular diploma within four years.
The student-teacher ratio is 15.8 to 1, close to the U.S. average of about 16 to 1. 39% of students qualify for free or reduced-price lunch.
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About This School
Campbell County High School is a high school located in Gillette, Wyoming. The school serves 1,187 students in grades 9-12. The student-to-teacher ratio is 15.8:1.
According to EDFacts assessment data, 56% of students meet grade-level proficiency standards in combined math and reading. The school reports a 84% graduation rate.
39% of students qualify for free or reduced-price lunch.
Campbell County High School is part of the Campbell County School District #1 in Wyoming.
How This School Compares
Campbell County High School has 1,187 students enrolled, making it larger than the average school in Campbell County School District #1 (375 students). Its 56% proficiency rate is 0 percentage points below the district average of 56%. Compared to the Wyoming state average of 55%, the school performs 1 points higher.
Frequently Asked Questions
Campbell County High School has 1,187 students enrolled in grades 9-12. The student-to-teacher ratio is 15.8:1.
According to EDFacts data, 56% of students at Campbell County High School meet grade-level proficiency standards in combined math and reading assessments.
Campbell County High School has a 84% graduation rate, measuring the percentage of students who graduate within four years.
Campbell County High School is part of the Campbell County School District #1 in Gillette, Wyoming. You can view all schools in this district on the district page.
All data on this page comes from the National Center for Education Statistics (NCES) Common Core of Data and EDFacts assessment results. These are official federal datasets published by the U.S. Department of Education.
School profiles are built from NCES directory data and EDFacts assessment results. Proficiency rates reflect combined math and reading performance. Graduation rates are reported for high schools with available data.
Source: NCES Common Core of Data, 2026.