The top reported proficiency rate is 73% in English language arts. The lowest is 65% in Math.
Original Research by School Decision on Eldorado K-8 School
Eldorado K-8 School, part of the Boulder Valley School District, sits in the heart of Superior, a suburban community along the US 36 corridor between Boulder and Denver. The school itself reflects the character of the town it serves. Superior was historically a coal mining settlement that shrank to a small population after the mine closed, then expanded dramatically beginning in the 1990s with master-planned subdivisions. The town is primarily residential, with a growing commercial core Downtown Superior development that is adding a mixed-use center with a plaza and shops. Many residents commute to jobs in Boulder and Denver. The Marshall Fire in 2021 destroyed a significant number of structures in Superior, including the entire Sagamore subdivision, and the town is still recovering and rebuilding.
Eldorado K-8 serves students from preschool through eighth grade. It is a regular public school, not a charter or magnet. The student body is a bit under six hundred students, making it a mid-sized school for a K-8 grade span. The enrollment is predominantly white, with a noticeable share of Asian students and a smaller share of Hispanic students; Black students and students of two or more races make up a small portion each. A modest portion of students qualify for free or reduced-price lunch. The school does not report counts for students with disabilities or English learners, so a family interested in those supports would want to ask the school directly.
Academically, this is a strong school. On the Colorado Measures of Academic Success, across grades three through eight, the share of students scoring proficient or above in English language arts was well above what is typical, and in math the proficiency rate was also strong. Science results are reported separately by grade level. Among fifth graders tested, a large majority reached proficiency. Among eighth graders, the proficiency rate was lower than in fifth grade, though still a majority of students. When placed alongside other schools in Boulder County, Eldorado’s overall proficiency across tested subjects and grades sits in the top quartile among its comparison set. The school does not serve high school grades, so there is no graduation rate to report, and no chronic absenteeism data appeared in the available records.
Superior is a car-oriented suburb with an extensive network of trails connecting parks and neighborhoods. The school sits within this suburban fabric. The town has a notable amount of parkland and open space, and the recreation amenities include playgrounds, sports fields, pools, and a skate park. The civic infrastructure is spread across the town rather than concentrated in a traditional downtown, though the Downtown Superior project is beginning to create a more walkable central gathering point.
The Boulder Valley School District, which operates Eldorado, is the broader context. Voters in 2022 approved a large bond issue, the largest in district history, funding safety upgrades, mental health spaces, classroom additions, and technology improvements across all its schools. A concurrent mill levy override passed to boost teacher and staff compensation. The district has seen enrollment decline over the past decade and voted to close two small elementary schools at the end of the 2024-25 school year. Eldorado itself is not affected by those closures, but the district as a whole is managing demographic and financial pressures.
Housing in the immediate area is expensive, with a very high home value relative to the national typical. Rents are also high, and buying a home requires a substantial income. The broader economic context shows a typical unemployment rate and median household income that aligns with a high-cost area.
This is a school that fits a family seeking a strong academic environment in a suburban setting with good test scores and a relatively homogeneous student body. The K-8 structure means students stay in one building from elementary through middle school, avoiding a transition at sixth grade. Families should note that there is no high school on site; students in Superior typically attend Monarch High in neighboring Louisville. The school itself does not publicly report data on discipline or staffing, so those are areas a prospective parent may want to explore in a visit or conversation with the school.
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