Enrollment
209
Elementary
DISTRICT 467 · STATE 379
SCHOOL COMMUNITY·ST. VRAIN VALLEY SCHOOL DISTRICT NO. RE1J·NCES 080537001396
Sanborn Elementary School
2235 VIVIAN STREET, LONGMONT, CO 80501 · (303) 772-3838 · Boulder County
GRADES PK–05ELEMENTARY22-SUBURBTITLE IREGULAR SCHOOL209 STUDENTS
Student : Teacher
12.3:1
17 FTE teachers
DISTRICT 15.6:1 · STATE 16.6:1
Free / Reduced Lunch
63%
131 students
DISTRICT 39% · STATE 50%
Community
0
0 members
Enrollment and student:teacher ratio compared against other elementary schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Pre-K | 16 | 8% |
| Kindergarten | 32 | 15% |
| Grade 1 | 26 | 12% |
| Grade 2 | 26 | 12% |
| Grade 3 | 37 | 18% |
| Grade 4 | 35 | 17% |
| Grade 5 | 37 | 18% |
This year's kindergarten class (32) is 14% smaller than its 5th grade class (37).
Student demographics
55%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 55% · STATE 62% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
CMAS 2024-25 . % Met or Exceeded ExpectationsEnglish Language Arts
42.9%
CO avg 44.9% . -0.1pp since 2023
Math
33.7%
CO avg 36.1% . +3.5pp since 2023
What this means: On the CMAS, Colorado's statewide test, about 43 of every 100 students at this school read and write at grade level and about 34 of 100 do math at grade level. Across all Colorado schools, those numbers are about 45 and 36. Reading and writing scores have held steady since 2023, while math scores are up about 4 points.
CMAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 42.9% | 33.7% |
| 2023-24 | 43.0% | 30.2% |
% Met or Exceeded Expectations, all students and all tested grades.
Source: CMAS. All students, all grades. See all years and grades →
BeatsExpectations
Demographically-adjusted score · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
37.5%
composite math + reading, all grades
Predicted
28.7%
based on CO schools with similar FRL share
Beats by
+8.8pp
above demographic expectation
What this means: About 37% of students here test proficient in math and reading, compared with the roughly 29% typical for Colorado schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Colorado's top nor bottom 10%.
BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →
Schools most like Sanborn Elementary School
Sanborn Elementary School's state test result (37.5% proficient) is higher than 4 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Sanborn Elementary School this school | 209 | 62.7% | 37.5% |
| La Jara Elementary School LA JARA | 195 | 65.6% | 45.2% |
| Winona Elementary School LOVELAND | 246 | 58.9% | 24.2% |
| Sedalia Elementary School SEDALIA | 212 | 58.5% | 32.8% |
| Laurene Edmondson Elementary School LOVELAND | 235 | 63.8% | 25.8% |
| Del Norte Elementary School DEL NORTE | 187 | 56.7% | 24.1% |
Matched among Colorado elementary schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.
Where Sanborn Elementary School ranks
Among elementary schools| Measure | This school | In Colorado | In Boulder County |
|---|---|---|---|
| State test proficiency ranked highest first | 37.5% | #472 of 931 | #37 of 46 |
| Math proficiency ranked highest first | 33.7% | #486 of 940 ▲ 28 | #38 of 48 ▲ 1 |
| Reading proficiency ranked highest first | 42.9% | #468 of 946 ▼ 12 | #37 of 48 ▲ 1 |
| Enrollment ranked largest first | 209 | #888 of 1,056 | #47 of 52 |
| Students per teacher ranked fewest first | 12.3:1 | #74 of 896 | #5 of 47 |
| Diversity index ranked most diverse first | 54.9% | #312 of 896 | #8 of 47 |
| Free and reduced lunch ranked highest share first | 62.7% | #344 of 983 | #9 of 48 |
| Enrollment change since 2017-18 ranked steepest decline first | -50.9% | #6 of 664 | #1 of 44 |
Ranked against other public elementary schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
209
-100 (-32%) vs 2020
-62% since 1990-91, when it was 547
Student : Teacher
12.3:1
was 15.4:1
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 209 | 17 | 12.3:1 | 63% (131) |
| 2023-24 | 239 | 19.5 | 12.3:1 | 56% (134) |
| 2022-23 | 267 | 19 | 14.1:1 | 60% (161) |
| 2020-21 | 309 | 20 | 15.4:1 | 55% (169) |
| 2017-18 | 426 | 25.8 | 16.5:1 | 53% (227) |
| 2015-16 | 479 | 26 | 18.4:1 | 49% (237) |
| 2010-11 | 451 | 23 | 19.6:1 | 39% (176) |
| 2000-01 | 441 | 20 | 22.1:1 | 3% (14) |
| 1990-91 | 547 | 22 | 24.9:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Sanborn Elementary School.
Since 2017-18: students down 51% (426 to 209); teachers down 34% (25.8 to 17).
About Sanborn Elementary School
In LONGMONT, Colorado, Sanborn Elementary School is a low-enrollment elementary school. Total enrollment is 209 students, and the grades served are pre-K through 5. Elementary schools in Colorado have about 379 students on average; enrollment here is 45% lower.
A total of 54 schools make up St. Vrain Valley School District No. Re1J, with 31,607 students enrolled.
White students are 50% of those enrolled at Sanborn Elementary School. Next come 45% Hispanic and 3% multiracial. That compares with about 78% White among all Boulder County residents. A diversity index of 55% means there is a 55% chance two randomly chosen students at Sanborn Elementary School are from different groups.
Its ratio of 12.3:1 is based on 17 full-time-equivalent teachers. Elementary schools in Colorado average 16.6:1, 4.3 more students per teacher than here. The share of students eligible for free or reduced-price lunch is 63%. That rate is above the 33% average among public schools in Boulder County.
The BeatsExpectations prediction for Sanborn Elementary School is 28.7%, and its average proficiency rate across its state test results is 37.5%.
In Boulder County, where the school is located, median household income comes to about $103,994, about 64% of adults have at least a bachelor's degree, and roughly 4% of residents are in poverty. There are 86 public schools in the county, enrolling about 42,200, Sanborn Elementary School among them.
Northridge Elementary School is the nearest public school to Sanborn Elementary School, about 0.7 miles away. Counting only straight-line distance, at least 8 other public schools are within five miles. Of 8 schools in the immediate area with test results, Sanborn Elementary School ranks 4th on average proficiency.
NCES lists the school's locale as Suburb: Mid-size. That means it sits in a suburban area outside a principal city, within an urbanized area with a population between 100,000 and 250,000.
Enrollment was 209 in 2024-25. In 2020-21, it was 309. The student-to-teacher ratio went down from 15.4:1 to 12.3:1.
This page is set up for the Sanborn Elementary School community to discuss open houses, carpools, and field trips. Members of the school community can share what they know.
Boulder County at a glance
View full county profilePopulation
328,961
Census ACS
Median income
$103,994
Household, ACS
Bachelor's+
64%
Adults 25+
Poverty rate
4%
Below federal line
Schools in county
86
42,200 students
Quick facts
Related schools
Other schools in St. Vrain Valley School District No. Re1J
- Erie High SchoolHigh · 1,727 students
- Niwot High SchoolHigh · 1,509 students
- Frederick Senior High SchoolHigh · 1,491 students
- Longmont High SchoolHigh · 1,268 students
- Soaring Heights PK-8Elementary · 1,211 students
- Silver Creek High SchoolHigh · 1,208 students
Other schools in LONGMONT
- Longmont High SchoolHigh · 1,268 students
- Silver Creek High SchoolHigh · 1,208 students
- Mead High SchoolHigh · 1,174 students
- Skyline High SchoolHigh · 1,082 students
- Twin Peaks Classical AcademyCombined · 879 students
- Timberline PK-8Elementary · 762 students
Other Sanborn Elementary schools
3 other US public schools in 4 states are named Sanborn Elementary. Sanborn Elementary School is the 3rd largest of the 4.
- Sanborn Elementary SchoolCHANDLER, AZ · 526 students
- Sanborn Elementary SchoolAMARILLO, TX · 404 students
- Sanborn ElementaryOSSINEKE, MI · 201 students
Nearby schools
- Northridge Elementary School0.7 mi · 318
- Longs Peak Middle School1.1 mi · 381
- Mountain View Elementary School1.2 mi · 321
- Longmont High School1.6 mi · 1,268
- Longmont Estates Elementary School1.8 mi · 365
- Alpine Elementary School1.8 mi · 388
Frequently asked questions
About Sanborn Elementary SchoolHow many students attend Sanborn Elementary School?
Sanborn Elementary School enrolls approximately 209 students in grades PK-05.
What grades does Sanborn Elementary School serve?
Sanborn Elementary School serves grades PK-05.
What is the student-teacher ratio at Sanborn Elementary School?
The student-to-teacher ratio at Sanborn Elementary School is approximately 12.3:1 (17 FTE teachers).
What is the student diversity at Sanborn Elementary School?
Student demographics at Sanborn Elementary School are roughly 50% White, 45% Hispanic, 1% Asian, 3% Two or more.
What district is Sanborn Elementary School in?
Sanborn Elementary School is part of St. Vrain Valley School District No. Re1J.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.