- Enrollment
- 4,411
- Students per teacher
- 17:1
- Resource Index
- 57/100
Other / mixed grade configuration · Fairfax, VA
Mosaic Elementary
Federal NCES profile for Mosaic Elementary, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 49/100.
2024-25 NCES dataOther / mixed grade configurationNCES 510126000539
👥 S:T ratio 35
🌟 Gifted program 70
🎓 Counselors 7
📋 Attendance 83
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mosaic Elementary earns 49/100 on the Resource Investment Index, with class sizes larger than 85% of Virginia schools.
- #14 of 19
- schools in Fairfax · Resource Index
- 49
- Resource Index · Higher
- 16.3:1
- large classes for Virginia
- 21.7%
- free-lunch eligible
Mosaic Elementary has class sizes larger than 85% of Virginia schools. Computed live against every Virginia school reporting to NCES.
By Resource Investment Index, Mosaic Elementary ranks #14 of 19 schools in Fairfax, VA.
School address
District: Fairfax County Public Schools · Virginia
NCES ID 510126000539 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+8 students YoY
Mosaic Elementary held near 966 students from 2022-23 to 2023-24 (+8 headcount).
Teacher FTE added 57.3 → 58.1 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+8 students YoY 510126000539 · Fairfax, VA Other · MID · TRAD
927 enr · 16.3:1 · 21.7% lunch · RII 49
Nearest enrollment peer: Lake Braddock Secondary (4,411 students)
Mosaic Elementary held near 966 students from 2022-23 to 2023-24 (+8 headcount). Teacher FTE added 57.3 → 58.1 across the same CCD years. Read with this school → · District book → · Virginia schools → · Find another →
Mosaic Elementary in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Lake Braddock
Lake Braddock Secondary
4,411 students
- Robinson Secon
Robinson Secondary
3,710 students
- Hayfield Secon
Hayfield Secondary
3,256 students
- Chantilly High
Chantilly High
2,937 students
- West Springfie
West Springfield High
2,799 students
- This school 927
Mosaic Elementary
927 students
What this shows Mosaic Elementary reports 927 students on the CCD universe file.
How Mosaic Elementary compares
Mosaic Elementary held steady on CCD headcount: ratios and free-lunch share vs Virginia and U.S. means.
| Metric | This school | vs Virginia | Virginia avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.3:1 | ▲ 17% | 13.9:1 | 15.7:1 |
| Free-lunch eligible | 21.7% | ▼ 62% | 57.6% | 51.7% |
| Enrollment | 927 | top 17% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.3:1
Leaner classes than 36% of US schools, a middle-of-the-pack class size.
927
Bigger than 90% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
21.7%
free-lunch eligible
- 62% below the Virginia average of 57.6%
Below the 40% Title I threshold; federal aid targets individual qualifying students rather than schoolwide programs.
Staffing depth
16.3:1
students per teacher
- 17% above state mean
Top 85% in Virginia - lower ratio than 15% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
6.9%
chronically absent (missed 10%+ of school days)
In the 5-10% range, close to the pre-pandemic national baseline.
Funding equity
$18,975
per pupil, district-wide
- above Virginia avg of $15,892
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors2.0 FTE
Per 464 students, the combined health-and-guidance staffing load for this school.
Discipline context
3
in-school suspensions + 4 out-of-school
Suspension rate: 0.3 per 100 students. Combined in-school and out-of-school rate: 0.8 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
White 35.5%
Asian 32.7%
Hispanic or Latino 16.5%
African American 8.3%
Two or More 6.7%
American Indian / Alaska Native 0.2%
Native Hawaiian / Pacific Islander 0.1%
Largest group: White at 35.5% of enrollment.
Student-body diversity index 72.8/100
Simpson diversity index - at 72.8, Mosaic Elementary is more mixed than the Virginia school average of 53.7.
Programs
Gifted & talented Yes
District finance for Fairfax County Public Schools reports $18,975 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mosaic Elementary Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lake Braddock Secondary | Larger | Similar economic need | Similar S:T ratio |
| Robinson Secondary | Larger | Lower economic need | Similar S:T ratio |
| Hayfield Secondary | Larger | Similar economic need | Similar S:T ratio |
| Chantilly High | Larger | Similar economic need | Similar S:T ratio |
| West Springfield High | Larger | Similar economic need | Higher S:T ratio |
Comparisons are relative to Mosaic Elementary's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,710
- Students per teacher
- 17.1:1
- Resource Index
- 54/100
- Enrollment
- 3,256
- Students per teacher
- 17.3:1
- Resource Index
- 53/100
- Enrollment
- 2,937
- Students per teacher
- 16.2:1
- Resource Index
- 47/100
- Enrollment
- 2,799
- Students per teacher
- 18.5:1
- Resource Index
- 45/100
Similar other schools in Fairfax
6 comparable other schools (grades Mixed) serving the same city.
Robinson Secondary
Standard public school
3,710 students 17.1:1 students per teacher
Providence Elementary
Standard public school
954 students 15.6:1 students per teacher
Greenbriar East Elementary
Standard public school
922 students 15.9:1 students per teacher
Mantua Elementary
Standard public school
909 students 15.4:1 students per teacher
Navy Elementary
Standard public school
848 students 15.7:1 students per teacher
Laurel Ridge Elementary
Standard public school
835 students 14.9:1 students per teacher
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 (~927 students)
Similar student-teacher ratio (~16.3:1)
Frequently asked questions about Mosaic Elementary
How many students attend Mosaic Elementary?
Mosaic Elementary has 927 students enrolled. It is a public school in Fairfax, VA. CCD year-over-year: 958 (2022-23) → 966 (2023-24), nearly flat (+8).
What is the student-teacher ratio at Mosaic Elementary?
The student-teacher ratio at Mosaic Elementary is 16.3:1, which is 17% higher than the Virginia average of 13.9:1 and 4% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mosaic Elementary?
21.7% of students at Mosaic Elementary are eligible for free lunch, compared to the Virginia average of 57.6%.
What is the racial and ethnic makeup of Mosaic Elementary?
The largest demographic group at Mosaic Elementary is White at 35.5% of enrollment, in Fairfax, VA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 72.8/100.
What is the Resource Investment Index for Mosaic Elementary?
Mosaic Elementary has a Resource Investment Index of 49/100 (higher 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 Mosaic Elementary rank among schools in Fairfax?
By Resource Investment Index, Mosaic Elementary ranks #14 of 19 schools in Fairfax, VA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Fairfax on the city page.
What other schools are in Fairfax County Public Schools?
Besides Mosaic Elementary, Fairfax County Public Schools also operates Lake Braddock Secondary (4,411 students), Robinson Secondary (3,710 students), and Hayfield Secondary (3,256 students). See the Fairfax County Public Schools district page for the complete list.