Enrollment
358
Elementary
DISTRICT 352 · STATE 379
SCHOOL COMMUNITY·BOULDER VALLEY SCHOOL DISTRICT NO. RE2·NCES 080249006199
Horizons K-8 School
4545 SIOUX DRIVE, BOULDER, CO 80303 · (720) 561-5580 · Boulder County
GRADES KG–08ELEMENTARY12-CITYCHARTERALTERNATIVE EDUCATION SCHOOL358 STUDENTS
Student : Teacher
14.1:1
25 FTE teachers
DISTRICT 15.7:1 · STATE 16.6:1
Free / Reduced Lunch
18%
63 students
DISTRICT 30% · 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 |
|---|---|---|
| Kindergarten | 28 | 8% |
| Grade 1 | 39 | 11% |
| Grade 2 | 42 | 12% |
| Grade 3 | 43 | 12% |
| Grade 4 | 43 | 12% |
| Grade 5 | 43 | 12% |
| Grade 6 | 40 | 11% |
| Grade 7 | 43 | 12% |
| Grade 8 | 37 | 10% |
This year's kindergarten class (28) is 24% smaller than its 8th grade class (37).
Student demographics
30%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 53% · 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
70.7%
own-school result
Math
54.6%
own-school result
State assessment results for this school reflect a specialized student population. The figures above are the school's own reported scores; they are not directly comparable to state averages or to general-enrollment schools, so the usual state-average comparison line is suppressed here.
CMAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 70.7% | 54.6% |
| 2023-24 | 66.8% | 52.7% |
% Met or Exceeded Expectations, all students and all tested grades.
Source: CMAS. All students, all grades. See all years and grades →
BeatsExpectations
Not computed for this schoolBeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →
Where Horizons K-8 School ranks
Among elementary schools| Measure | This school | In Colorado | In Boulder County |
|---|---|---|---|
| Enrollment ranked largest first | 358 | #543 of 1,056 | #25 of 52 |
| Students per teacher ranked fewest first | 14.1:1 | #236 of 896 | #12 of 47 |
| Diversity index ranked most diverse first | 29.9% | #801 of 896 | #40 of 47 |
| Free and reduced lunch ranked highest share first | 17.6% | #859 of 983 | #34 of 48 |
| Enrollment change since 2017-18 ranked fastest growth first | +2.9% | #167 of 200 | N/A |
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
358
+10 (+3%) vs 2020
+17% since 2000-01, when it was 306
Student : Teacher
14.1:1
was 13.9:1
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 | 358 | 25.5 | 14.1:1 | 18% (63) |
| 2023-24 | 361 | 24.7 | 14.6:1 | 13% (47) |
| 2022-23 | 348 | 28.4 | 12.2:1 | 11% (37) |
| 2020-21 | 348 | 25 | 13.9:1 | 9% (32) |
| 2017-18 | 348 | 22.8 | 15.3:1 | 5% (17) |
| 2015-16 | 348 | 20 | 17.4:1 | 7% (25) |
| 2010-11 | 332 | 19 | 17.5:1 | 7% (23) |
| 2000-01 | 306 | 20 | 15.3:1 | 6% (17) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Horizons K-8 School.
Since 2017-18: students up 3% (348 to 358); teachers up 12% (22.8 to 25.5).
About Horizons K-8 School
Horizons K-8 School is an elementary school located in BOULDER, Colorado, in Boulder County. The school has 358 students in 2024-25 across kindergarten through 8.
Horizons K-8 School is a school in Boulder Valley School District No. Re2. The district has 56 schools and 27,988 students.
At Horizons K-8 School, 83% of students are White. The remaining students are 8% multiracial and 6% Hispanic. On the diversity index, which measures the chance that two random students are from different groups, Horizons K-8 School scores 30%.
Its staff includes 25.5 full-time-equivalent teachers, for about 14.1 students per teacher. Compared with the 16.6:1 average for elementary schools in Colorado, this school's ratio is lower. Roughly 18% of students at Horizons K-8 School can receive free or reduced-price lunch. Among public schools in Boulder County, the average eligibility rate is 33%.
In Boulder County, home to about 328,961 people, median household income comes to about $103,994, 64% of adults hold a bachelor's degree or higher, and about 4% of residents live below the federal poverty line. Boulder County's 86 public schools enroll about 42,200 students and include Horizons K-8 School.
Horizons K-8 School is about 0.5 miles from Manhattan Middle School of the Arts and Academics, its nearest public school. Horizons K-8 School has at least 8 other public schools within five miles.
Its NCES locale code is City: Mid-size: the school is inside a principal city with a population between 100,000 and 250,000. The school is classified as a charter school in federal data.
A 3% rise took enrollment from 348 in 2020-21 to 358 in 2024-25.
This page collects posts and questions about Horizons K-8 School, such as athletics, class schedules, and weather closures. 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 Boulder Valley School District No. Re2
- Boulder High SchoolHigh · 1,939 students
- Fairview High SchoolHigh · 1,863 students
- Broomfield High SchoolHigh · 1,693 students
- Centaurus High SchoolHigh · 1,557 students
- Peak to Peak Charter SchoolCombined · 1,447 students
- Monarch High SchoolHigh · 1,431 students
Other schools in BOULDER
- Boulder High SchoolHigh · 1,939 students
- Fairview High SchoolHigh · 1,863 students
- Williamsburg Academy of ColoradoHigh · 622 students
- Centennial Middle SchoolMiddle · 598 students
- Southern Hills Middle SchoolMiddle · 502 students
- Nevin Platt Middle SchoolMiddle · 483 students
Nearby schools
- Manhattan Middle School of the Arts and Academics0.5 mi · 482
- Creekside Elementary School at Martin Park0.7 mi · 359
- Summit Middle Charter School0.7 mi · 366
- High Peaks Elementary School0.8 mi · 257
- Boulder Community School/Integrated Studies0.8 mi · 255
- Eisenhower Elementary School1.0 mi · 308
Frequently asked questions
About Horizons K-8 SchoolWhat is the total enrollment at Horizons K-8 School?
Horizons K-8 School enrolls approximately 358 students in grades KG-08.
What grades does Horizons K-8 School serve?
Horizons K-8 School serves grades KG-08.
How many teachers does Horizons K-8 School have?
Horizons K-8 School employs 25 FTE teachers, for a student-to-teacher ratio of 14.1:1.
What is the student diversity at Horizons K-8 School?
Student demographics at Horizons K-8 School are roughly 83% White, 6% Hispanic, 1% Black, 2% Asian, 8% Two or more.
Who oversees Horizons K-8 School?
Horizons K-8 School is overseen by Boulder Valley School District No. Re2 in Boulder County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.