Enrollment
163
Elementary
DISTRICT 352 · STATE 379
SCHOOL COMMUNITY·BOULDER VALLEY SCHOOL DISTRICT NO. RE2·NCES 080249000115
Flatirons Elementary School
1150 7TH STREET, BOULDER, CO 80302 · (720) 561-4600 · Boulder County
GRADES KG–05ELEMENTARY12-CITYREGULAR SCHOOL163 STUDENTS
Student : Teacher
13.9:1
12 FTE teachers
DISTRICT 15.7:1 · STATE 16.6:1
Free / Reduced Lunch
18%
30 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 | 26 | 16% |
| Grade 1 | 28 | 17% |
| Grade 2 | 36 | 22% |
| Grade 3 | 20 | 12% |
| Grade 4 | 25 | 15% |
| Grade 5 | 28 | 17% |
This year's kindergarten class (26) is 7% smaller than its 5th grade class (28).
Student demographics
38%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
73.8%
CO avg 44.9% . +8.0pp since 2023
Math
68.7%
CO avg 36.1% . +8.4pp since 2023
What this means: On the CMAS, Colorado's statewide test, about 74 of every 100 students at this school read and write at grade level and about 69 of 100 do math at grade level. Across all Colorado schools, those numbers are about 45 and 36. Reading and writing scores are up about 8 points since 2023, while math scores are up about 8 points.
CMAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 73.8% | 68.7% |
| 2023-24 | 65.8% | 60.3% |
% 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
65.6%
composite math + reading, all grades
Predicted
55.6%
based on CO schools with similar FRL share
Beats by
+10.1pp
above demographic expectation
What this means: About 66% of students here test proficient in math and reading, compared with the roughly 56% 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 Flatirons Elementary School
Flatirons Elementary School's state test result (65.6% proficient) is higher than 5 of the 5 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Flatirons Elementary School this school | 163 | 18.4% | 65.6% |
| Big Thompson Elementary School LOVELAND | 179 | 24.6% | 44.3% |
| Larkspur Elementary School LARKSPUR | 161 | 23.6% | 53.1% |
| King-Murphy Elementary School EVERGREEN | 151 | 17.2% | 50.4% |
| Ridgway Elementary School RIDGWAY | 149 | 22.1% | 62.6% |
| Fraser Valley Elementary School FRASER | 217 | 22.6% | 61.5% |
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 Flatirons Elementary School ranks
Among elementary schools| Measure | This school | In Colorado | In Boulder County |
|---|---|---|---|
| State test proficiency ranked highest first | 65.6% | #95 of 931 | #17 of 46 |
| Math proficiency ranked highest first | 68.7% | #60 of 940 ▲ 55 | #12 of 48 ▲ 7 |
| Reading proficiency ranked highest first | 73.8% | #55 of 946 ▲ 76 | #10 of 48 ▲ 11 |
| Enrollment ranked largest first | 163 | #928 of 1,056 | #49 of 52 |
| Free and reduced lunch ranked highest share first | 18.4% | #848 of 983 | #33 of 48 |
| Enrollment change since 2017-18 ranked steepest decline first | -33.5% | #74 of 664 | #3 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
163
-9 (-5%) vs 2020
-53% since 1990-91, when it was 349
Student : Teacher
13.9:1
was 15.6:1
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 | 163 | 11.8 | 13.9:1 | 18% (30) |
| 2023-24 | 164 | 9.5 | 17.2:1 | 15% (24) |
| 2022-23 | 182 | 11 | 16.6:1 | 15% (27) |
| 2020-21 | 172 | 11 | 15.6:1 | 7% (12) |
| 2017-18 | 245 | 13.4 | 18.2:1 | 8% (20) |
| 2015-16 | 274 | 13 | 21.1:1 | 8% (23) |
| 2010-11 | 283 | 16 | 17.7:1 | 24% (67) |
| 2000-01 | 260 | 16 | 16.3:1 | 6% (15) |
| 1990-91 | 349 | 17 | 20.5:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Flatirons Elementary School.
Since 2017-18: students down 33% (245 to 163); teachers down 12% (13.4 to 11.8).
About Flatirons Elementary School
Flatirons Elementary School is a public elementary school run by Boulder Valley School District No. Re2 in BOULDER, Colorado. A federal count lists 163 students at the school, in kindergarten through 5. An average school in this group (elementary schools in Colorado) has about 379 students.
Boulder Valley School District No. Re2 has 56 schools; together they serve 27,988 students.
At Flatirons Elementary School, White students make up 77% of the student body. The remaining shares are 11% Hispanic and 10% multiracial. County-wide, about 78% of residents are White. Pick two students at random and there is a 38% chance they belong to different racial or ethnic groups; that figure is the school's diversity index.
Dividing enrollment by its 11.8 full-time-equivalent teachers gives a ratio of about 13.9:1. That is lower than the 16.6:1 average for elementary schools in Colorado. Eligible students account for 18% of enrollment in the free or reduced-price lunch program. It compares with 33% for public schools in Boulder County.
Flatirons Elementary School's average proficiency rate on state tests of 65.6% is 10.1 points above the 55.6% the model predicts from its lunch-eligibility share.
According to the American Community Survey, in Boulder County, the median household income is $103,994, 64% of adults hold a bachelor's degree or higher, and about 4% of people live in poverty. Flatirons Elementary School is one of 86 public schools in the county.
Boulder High School is the nearest neighboring public school, about 0.7 miles away. The five-mile area around Flatirons Elementary School holds at least 8 other public schools. Nearby schools average 42.5% on proficiency, and Flatirons Elementary School is above that at 65.6%.
The National Center for Education Statistics classifies the school's location as City: Mid-size, meaning it is inside a principal city with a population between 100,000 and 250,000.
Federal data show a 5% enrollment decrease, from 172 in 2020-21 to 163 in 2024-25. Staffing shifted too: the ratio moved from 15.6:1 to 13.9:1.
Posts about school events, clubs, and volunteer needs are welcome on this page. Reviews and ratings from people who know the school are welcome.
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
- Boulder High School0.7 mi · 1,939
- Williamsburg Academy of Colorado0.7 mi · 622
- University Hill Elementary School0.7 mi · 405
- Mapleton Early Childhood Center0.8 mi · 68
- Casey Middle School1.1 mi · 363
- New Vista High School1.1 mi · 327
Frequently asked questions
About Flatirons Elementary SchoolWhat is the total enrollment at Flatirons Elementary School?
Flatirons Elementary School enrolls approximately 163 students in grades KG-05.
What age range does Flatirons Elementary School serve?
Flatirons Elementary School serves students from grade KG through grade 05.
What is the student-teacher ratio at Flatirons Elementary School?
The student-to-teacher ratio at Flatirons Elementary School is approximately 13.9:1 (12 FTE teachers).
What is the racial breakdown of students at Flatirons Elementary School?
At Flatirons Elementary School, the student body is approximately 77% White, 11% Hispanic, 1% Black, 1% Asian, 10% Two or more.
Is Flatirons Elementary School public or private?
Flatirons Elementary School is a public K-12 school, overseen by Boulder Valley School District No. Re2.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.