Best Public Schools in Mosca, CO

Mosca, Colorado is served by two public schools in the Sangre de Cristo School District No. Re-22J—Sangre de Cristo Elementary School (grades PK–5) and Sangre de Cristo Undivided High School (grades 6–12)—together enrolling 256 students in this small, rural community. The elementary school is the clear standout, earning a 4-star rating and ranking in the 76th percentile of Colorado elementary schools in 2025–2026. It has improved steadily for three years, and its English Language Arts proficiency is 59.2%, well above the state’s 44.7%. Fourth-grade ELA hits 66.7%, and fifth-grade science reaches 43.8%, both above state averages. With a low student–teacher ratio of 11.8:1, this school offers strong literacy foundations despite serving a majority low-income population.

The high school, while more volatile in rankings, posts impressive science and reading results. Its 11th-grade science proficiency of 53.8% is more than double the state’s 24.8%, and its PSAT10 Reading/Writing score of 77% easily beats the state’s 64%. However, math is a serious weakness across both schools. The elementary school’s math proficiency is just 32.7% versus 59.2% in ELA, and the high school’s SAT Math proficiency is only 19% compared to 65% in SAT Reading/Writing. This consistent “strong ELA, weak math” pattern is the district’s biggest challenge, especially because low math scores can limit college readiness and STEM pathways despite solid reading skills.

Both schools share a campus and similar demographics, with free/reduced lunch rates of 56.4% (elementary) and 63.7% (high school). Chronic absenteeism affects about one in four students at each school, though both remain below the state average of 28.4%. Small class sizes are a district asset, especially the high school’s 9.3:1 ratio. The district itself ranks in the top 15% of Colorado districts with a 4-star rating, and it maintains a 0.0% dropout rate in the most recent reported year. For parents, this is a small, tightly connected district where elementary students are thriving and high schoolers excel in science and reading, but targeted math support is clearly needed to round out an otherwise strong educational experience.