- Enrollment
- 1,923
- Students per teacher
- 21.4:1
- Resource Index
- 32/100
Other / mixed grade configuration · Littleton, CO
Mortensen Elementary School
Federal NCES profile for Mortensen Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 46/100.
2024-25 NCES dataOther / mixed grade configurationNCES 080480000991
👥 S:T ratio 53
🌟 Gifted program 70
🎓 Counselors 48
📋 Attendance 13
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mortensen Elementary School earns 46/100 on the Resource Investment Index, with class sizes smaller than 84% of Colorado schools.
- #12 of 22
- schools in Littleton · Resource Index
- 46
- Resource Index · Typical
- 11.8:1
- small classes for Colorado
- 27.7%
- free-lunch eligible
Mortensen Elementary School has class sizes smaller than 84% of Colorado schools. Computed live against every Colorado school reporting to NCES.
By Resource Investment Index, Mortensen Elementary School ranks #12 of 22 schools in Littleton, CO.
School address
District: Jefferson County School District No. R-1 · Colorado
NCES ID 080480000991 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-16 students YoY
Mortensen Elementary School shrank from 303 students in 2022-23 to 287 in 2023-24 (-5.3%).
Teacher FTE lost 22.3 → 19.6 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Shrinking CCD campus
-16 students YoY 080480000991 · Littleton, CO Other · SMALL · TRAD
260 enr · 11.8:1 · 27.7% lunch · RII 46
Nearest enrollment peer: Arvada West High School (1,923 students)
Mortensen Elementary School shrank from 303 students in 2022-23 to 287 in 2023-24 (-5.3%). Teacher FTE lost 22.3 → 19.6 across the same CCD years. Read with this school → · District book → · Colorado schools → · Find another →
Mortensen Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Arvada West Hi
Arvada West High School
1,923 students
- Ralston Valley
Ralston Valley Senior High School
1,875 students
- Chatfield High
Chatfield High School
1,808 students
- Lakewood High
Lakewood High School
1,735 students
- Columbine High
Columbine High School
1,710 students
- This school 260
Mortensen Elementary School
260 students
What this shows Mortensen Elementary School reports 260 students on the CCD universe file.
How Mortensen Elementary School compares
Mortensen Elementary School is a shrinking campus on CCD: ratios and free-lunch share vs Colorado and U.S. means.
| Metric | This school | vs Colorado | Colorado avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.8:1 | ▼ 29% | 16.6:1 | 15.7:1 |
| Free-lunch eligible | 27.7% | ▼ 28% | 38.5% | 51.7% |
| Enrollment | 260 | top 68% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.8:1
Leaner classes than 77% of US schools, among the more generously staffed nationally.
260
Bigger than 27% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
27.7%
free-lunch eligible
- 28% below the Colorado average of 38.5%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
11.8:1
students per teacher
- 29% below state mean
Top 16% in Colorado - lower ratio than 84% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
34.6%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$14,483
per pupil, district-wide
- below Colorado avg of $17,910
Somewhat below the U.S. average per-pupil spend; funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 260 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 1 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.4 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 67.3%
Hispanic or Latino 22.3%
Two or More 5.4%
African American 2.3%
Asian 1.5%
American Indian / Alaska Native 0.8%
Native Hawaiian / Pacific Islander 0.4%
Largest group: White at 67.3% of enrollment.
Student-body diversity index 49.4/100
Simpson diversity index - at 49.4, Mortensen Elementary School is more mixed than the Colorado school average of 47.1.
Programs
Gifted & talented Yes
District finance for Jefferson County School District No. R-1 reports $14,483 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mortensen Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Arvada West High School | Larger | Similar economic need | Higher S:T ratio |
| Ralston Valley Senior High School | Larger | Lower economic need | Higher S:T ratio |
| Chatfield High School | Larger | Lower economic need | Higher S:T ratio |
| Lakewood High School | Larger | Similar economic need | Higher S:T ratio |
| Columbine High School | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Mortensen Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,875
- Students per teacher
- 21.6:1
- Resource Index
- 35/100
- Enrollment
- 1,808
- Students per teacher
- 20.1:1
- Resource Index
- 34/100
- Enrollment
- 1,735
- Students per teacher
- 17.4:1
- Resource Index
- 52/100
- Enrollment
- 1,710
- Students per teacher
- 19.9:1
- Resource Index
- 31/100
Nationwide other schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~260 students)
Frequently asked questions about Mortensen Elementary School
How many students attend Mortensen Elementary School?
Mortensen Elementary School has 260 students enrolled. It is a public school in Littleton, CO. CCD year-over-year: 303 (2022-23) → 287 (2023-24), down 16.
What is the student-teacher ratio at Mortensen Elementary School?
The student-teacher ratio at Mortensen Elementary School is 11.8:1, which is 29% lower than the Colorado average of 16.6:1 and 25% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Mortensen Elementary School?
27.7% of students at Mortensen Elementary School are eligible for free lunch, compared to the Colorado average of 38.5%.
What is the racial and ethnic makeup of Mortensen Elementary School?
The largest demographic group at Mortensen Elementary School is White at 67.3% of enrollment, in Littleton, CO.
What is the Resource Investment Index for Mortensen Elementary School?
Mortensen Elementary School has a Resource Investment Index of 46/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Mortensen Elementary School rank among schools in Littleton?
By Resource Investment Index, Mortensen Elementary School ranks #12 of 22 schools in Littleton, CO. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Littleton on the city page.
What other schools are in Jefferson County School District No. R-1?
Besides Mortensen Elementary School, Jefferson County School District No. R-1 also operates Arvada West High School (1,923 students), Ralston Valley Senior High School (1,875 students), and Chatfield High School (1,808 students). See the Jefferson County School District No. R-1 district page for the complete list.