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Average

#135 of 188 private schools in CO

Sierra School of Main Street

School

820 MAIN ST, Longmont, CO 80501

Private Estimated Score

Estimated academic score. This school does not have standardized test data. Based on CO statewide data. Learn more

Enrollment

40

Student-Teacher

8:1

Score

5.7

Grades

1st – 12th

Updated 2021-22

How this school compares

In Longmont

#4 of 4

public schools

Colorado schools

#45 of 59

About Sierra School of Main Street

Sierra School of Main Street serves just 40 students in grades 1-12 in Longmont, Colorado, creating an exceptionally intimate learning environment with an 8:1 student-teacher ratio. This small regular public school maintains a close-knit atmosphere with only 5 full-time equivalent teachers, allowing for highly personalized attention and instruction across all grade levels. The school earns a solid 8.1 out of 10 rating from MySchoolScout and ranks #92 among Colorado's 188 schools, placing it in the 52nd percentile statewide.

This performance reflects steady educational quality within the state's public school system. Sierra School's unique structure spans elementary through high school grades, offering families the opportunity for their children to remain within the same supportive community throughout their K-12 education. The intimate size means students likely develop strong relationships with both peers and teachers across multiple years.

The school serves families in the 80501 area, where the median household income is $77,327 and median home values reach $432,500. The community shows strong educational values, with 38% of residents holding bachelor's degrees or higher, while maintaining a relatively low poverty rate of 9.6%. Sierra School of Main Street operates in Longmont's small suburban setting, providing a close community feel within Boulder County's educational landscape.

What Parents Should Know

With an enrollment of 40 students, Sierra School of Main Street is a smaller school where families often find a close-knit community atmosphere. Smaller settings can mean more individual attention from teachers and staff, though they may offer fewer extracurricular options than larger schools.

With a student-teacher ratio of 8:1, Sierra School of Main Street offers a notably low ratio compared to the national average. This typically means smaller class sizes and more opportunities for one-on-one interaction between students and teachers.

As a private school, Sierra School of Main Street operates independently from the local public school district. Families considering this school should inquire about tuition costs, financial aid availability, and the admissions process. Private schools are not required to follow the same curriculum standards as public schools, which can be either an advantage or a consideration depending on your priorities.

Compare to Public Schools

Beta

How Sierra School of Main Street compares to 30 public schools serving similar grades in Longmont, CO

Student-Teacher Ratio
8:1
This School
vs
15.1:1
Public Avg
Avg School Size
40
This School
vs
513
Public Avg
Avg School Scout Rating
5.7
This School
vs
6.9
Public Avg

Student Demographics

White 67.5% vs 0%
Hispanic 25% vs 0%
Asian 5% vs 0%
Black 2.5% vs 0%
Sierra School of Main Street Longmont Public Avg

Nearby Other Schools

School Rating
Sierra School of Main Street (this school) 5.7
Columbine Elementary School 7.2
Central Elementary School 8.5
St. Vrain LaunchED Virtual Academy 7.4
Timberline PK-8 6.4
Longmont High School 7.1
Mountain View Elementary School 7.1
Longs Peak Middle School 5.8
Skyline High School 6.8
Rocky Mountain Elementary School 6.5
St. Vrain Community Montessori School 6.7
Northridge Elementary School 5.7
Twin Peaks Charter Academy 5.3
Alpine Elementary School 5.6
Burlington Elementary School 5.6
Sanborn Elementary School 8.5
St. Vrain Virtual High School 8.2
New Meridian High School 4.6
Fall River Elementary School 8.3
Sunset Middle School 7.2
Indian Peaks Elementary School 7.1

Showing 20 of 30 schools. View all schools in Longmont

Demographics sourced from NCES Private School Survey (PSS) and Common Core of Data (CCD). Comparisons are based on enrollment-weighted averages.

Score Breakdown

What This Rating Measures

This rating reflects classroom size, instructional time, student diversity, community resources, and school characteristics. Private schools are ranked against other private schools in CO.

Classroom Attention
? Student-teacher ratio calibrated against other private schools. Lower ratios mean more individual attention. (30% of overall score)
B+ 7.3 / 10
View breakdown
Student-Teacher Ratio 8:1
Instructional Commitment
? Total annual instructional hours based on school day length and days per year. (15% of overall score)
C- 2.0 / 10
View breakdown
School Day Length 6 hours
Annual Instructional Hours 1,044
Diversity & Inclusion
? Racial and ethnic diversity of the student body using Simpson's diversity index. (20% of overall score)
A- 8.2 / 10
View breakdown
Diversity Index 48%
Community Context

Data Unavailable

School Profile
? Enrollment size and grade span breadth — indicators of program depth and peer community. (15% of overall score)
C 2.7 / 10
View breakdown
Enrollment 40
View data sources

Score basis: Private school model

Data coverage: 80% of scoring components had data

Components scored: 4 of 5

Ranking pool: Private schools in CO

Test Scores

Test score data not yet available for this school.

Student Demographics NCES PSS (SY 2021-22)

White 67.5%
Hispanic 25.0%
Asian 5.0%
Black 2.5%

Source: NCES Private School Survey (PSS)

Location

820 MAIN ST, Longmont, CO 80501

Nearby Alternatives

Families considering Sierra School of Main Street may also want to explore other schools in the area. LONGMONT CHRISTIAN SCHOOL (rated 7.8/10, 0.8 miles away), which scores notably higher. Another option is St. Vrain LaunchED Virtual Academy (rated 7.4/10, 0.6 miles away), which scores notably higher. Additionally, Twin Peaks Charter Academy (rated 5.3/10, 1.5 miles away), with a comparable rating. For more schools in Longmont, see our Longmont schools guide .

Nearby Schools

20 within 1.9 mi
School Distance Rating
HOPEWELL BAPTIST ACADEMY Longmont 0.4 mi
Columbine Elementary School Longmont 0.4 mi 7.2
ST JOHN THE BAPTIST CATHOLIC SCHOOL Longmont 0.5 mi 7.3
Central Elementary School Longmont 0.6 mi 8.5
St. Vrain LaunchED Virtual Academy Longmont 0.6 mi 7.4
CROSSROADS SCHOOL Longmont 0.8 mi
LONGMONT CHRISTIAN SCHOOL Longmont 0.8 mi 7.8
GATEWAY MONTESSORI SCHOOL Longmont 0.8 mi
Timberline PK-8 Longmont 0.9 mi 6.4
Mountain View Elementary School Longmont 1.0 mi 7.1
Longmont High School Longmont 1.0 mi 7.1
Longs Peak Middle School Longmont 1.1 mi 5.8
St. Vrain Community Montessori School Longmont 1.3 mi 6.7
THE COTTAGE SCHOOL - TERRY Longmont 1.4 mi
Northridge Elementary School Longmont 1.5 mi 5.7
Skyline High School Longmont 1.3 mi 6.8
Rocky Mountain Elementary School Longmont 1.3 mi 6.5
Twin Peaks Charter Academy Longmont 1.5 mi 5.3
Alpine Elementary School Longmont 1.6 mi 5.6
Burlington Elementary School Longmont 1.9 mi 5.6

Neighborhood Census ACS (2019-2023)

Census data for ZIP 80501 (ACS 2019-2023 5-Year Estimates) · Data sources

Median Income

$77,705

Median Home Value

$461,400

Median Rent

$1,586/mo

Population

43,591

College Educated

38.6%

Homeownership

58%

Avg Commute

25.3 min

Poverty Rate

10.2%

Median Age

38

Community Profile

The community surrounding Sierra School of Main Street has a median household income of $77,705. It is an area where 39% of adults hold a bachelor's degree or higher. The median home value in the area is $461,400, with a median rent of $1,586/month. The area has a poverty rate of 10.2%. The average commute for residents is 25 minutes. Source: U.S. Census ACS 2022 5-Year Estimates.

Similar Schools

Schools in the same state with comparable level, size, and ratings

School Rating
LIGHTHOUSE CHRISTIAN ACADEMY Cortez, CO 5.9
THE LIBERTY SCHOOL Durango, CO 5.9
CANON CHRISTIAN ACADEMY Canon City, CO 6.0
North Conejos Alternative Program Lajara, CO 5.4
Prairie Vista Youth Service Center Brighton, CO 6.1
BRIGHTON ADVENTIST ACADEMY Brighton, CO 5.2

Frequently Asked Questions

Common questions about Sierra School of Main Street

What grades does Sierra School of Main Street serve?

Sierra School of Main Street serves students in grades 1st through 12th.

How many students attend Sierra School of Main Street?

Sierra School of Main Street has an enrollment of approximately 40 students.

What is the student-teacher ratio at Sierra School of Main Street?

The student-teacher ratio at Sierra School of Main Street is 8:1. A lower ratio generally means more individual attention per student. The national average is approximately 11:1 for private schools.

How does Sierra School of Main Street rank in CO?

Sierra School of Main Street is ranked #135 out of 188 private schools in CO.

What is Sierra School of Main Street's MySchoolScout rating?

Sierra School of Main Street has a composite rating of 5.7 out of 10 on MySchoolScout. This score combines academic performance, student growth, and school environment into a single score. Equity data is shown separately for context.

Is Sierra School of Main Street a private school?

Yes, Sierra School of Main Street is a private coeducational school with a Nonsectarian affiliation. Private schools are not required to participate in state standardized testing, so academic performance data may be limited compared to public schools.

Is Sierra School of Main Street a religious school?

No, Sierra School of Main Street is a nonsectarian (non-religious) private school.

11 schools nearby View map →

Neighborhood Context

City Safety
High (3,112/100K)

FBI UCR 2024. City-level (Longmont). Data >1 year old.

Quick Facts NCES PSS (SY 2021-22)

Grades
1st – 12th
Enrollment
40
Gender Split
88% M / 12% F
Student-Teacher Ratio
8:1
Teachers (FTE)
5
Type
private
Coed Status
coed
Affiliation
Nonsectarian
School Day
6 hours
Days Per Year
174 days
Setting
Small Suburb
County
BOULDER
Data Year
2022–2023

How We Rate Schools

Every school receives a composite score from 1 to 10 based on four pillars: Academic Performance (50%), Student Growth (20%), Equity (15%), and Learning Environment (15%). Scores are built from publicly available data including standardized test results, enrollment figures, and school climate indicators.

Read our full methodology

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