Colorado

Colorado's K-12 public education system serves approximately 877,014 students across 1,958 schools organized within 184 school districts. The state operates with 53,469 teachers, resulting in a student-to-teacher ratio of approximately 16:1. District structure ranges from small rural districts to large urban systems, with significant variation in organizational capacity and resources across regions.

Student demographics show that 44.9% of Colorado's public school population qualifies for free or reduced-price lunch, indicating substantial economic disadvantage within the state's student body. English learners comprise 11.6% of enrollment, while 13.7% of students have identified disabilities. These subpopulations reflect both demographic diversity and varying support needs across Colorado's schools.

Academic performance data from the 2022-23 school year indicates that 28.4% of students demonstrated proficiency in mathematics and 37.9% in reading, both figures below typical national ranges. The state's four-year graduation rate stands at 86.4%, positioning Colorado within the mid-range nationally. Average per-pupil spending was $8,178, which is below the national median in most state comparisons.

Colorado employs the Colorado Measures of Academic Performance (CMAS) as its state assessment system. The state uses performance levels ranging from partially met to exceeded to categorize student achievement. Colorado's accountability framework includes school performance ratings and indicators related to student academic growth, English learner progress, and graduation rates. Districts and schools receive designations based on overall performance, with varying levels of state intervention depending on classification. The state also tracks longitudinal growth metrics to contextualize individual school and district results within broader achievement patterns.