- Enrollment
- 3,535
- Students per teacher
- 17.1:1
- Resource Index
- 46/100
High school (grades 9-12) · Arlington, TX
Lamar H S
Federal NCES profile for Lamar H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 54/100.
2024-25 NCES dataHigh school (grades 9-12)NCES 480870000253
👥 S:T ratio 40
🌟 Gifted program 70
🎓 Counselors 50
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Lamar H S earns 54/100 on the Resource Investment Index, with class sizes near the Texas median. It is also one of the largest schools in Texas.
- #2 of 13
- high schools in Arlington · Resource Index
- 54
- Resource Index · Higher
- 14.9:1
- students per teacher
- 69.2%
- free-lunch eligible
Lamar H S has class sizes near the Texas median. Computed live against every Texas school reporting to NCES.
By Resource Investment Index, Lamar H S ranks #2 of 13 high schools in Arlington, TX.
School address
District: Arlington Isd · Texas
NCES ID 480870000253 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-67 students YoY
Lamar H S held near 2,479 students from 2022-23 to 2023-24 (-67 headcount).
Teacher FTE added 165.1 → 167.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-67 students YoY 480870000253 · Arlington, TX High · LARGE · TRAD
2,457 enr · 14.9:1 · 69.2% lunch · RII 54
Nearest enrollment peer: Martin H S (3,535 students)
Lamar H S held near 2,479 students from 2022-23 to 2023-24 (-67 headcount). Teacher FTE added 165.1 → 167.4 across the same CCD years. Read with this school → · District book → · Texas schools → · Find another →
Lamar H S in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Martin H S
Martin H S
3,535 students
- Sam Houston H
Sam Houston H S
3,208 students
- Arlington H S
Arlington H S
2,580 students
- This school
Lamar H S
2,457 students
- Bowie H S
Bowie H S
2,140 students
- Seguin H S
Seguin H S
1,554 students
What this shows Lamar H S reports 2,457 students on the CCD universe file.
How Lamar H S compares
Lamar H S held steady on CCD headcount: ratios and free-lunch share vs Texas and U.S. means.
| Metric | This school | vs Texas | Texas avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 14.9:1 | ▲ 1% | 14.7:1 | 15.7:1 |
| Free-lunch eligible | 69.2% | ▲ 12% | 61.9% | 51.7% |
| Enrollment | 2,457 | top 2% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
14.9:1
Leaner classes than 48% of US schools, a middle-of-the-pack class size.
2,457
Bigger than 99% of US schools by enrollment, a large campus nationally.
Equity indicators methodology
Economic need
69.2%
free-lunch eligible
- 12% above the Texas average of 61.9%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
14.9:1
students per teacher
- 1% above state mean
Top 58% in Texas - lower ratio than 42% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Funding equity
$11,746
per pupil, district-wide
- below Texas avg of $14,348
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors9.9 FTE
Per 248 students, the combined health-and-guidance staffing load for this school.
Discipline context
233
in-school suspensions + 250 out-of-school
Suspension rate: 9.5 per 100 students. Combined in-school and out-of-school rate: 19.7 per 100 students. Reported via the Civil Rights Data Collection. Includes 26 expulsions.
Student demographics
Hispanic or Latino 48.6%
African American 33.4%
White 12.1%
Two or More 3.5%
Asian 1.9%
American Indian / Alaska Native 0.4%
Native Hawaiian / Pacific Islander 0.2%
Largest group: Hispanic or Latino at 48.6% of enrollment.
Student-body diversity index 63.6/100
Simpson diversity index - at 63.6, Lamar H S is more mixed than the Texas school average of 44.7.
Programs
AP courses offered 25
Gifted & talented Yes
District finance for Arlington Isd reports $11,746 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Lamar H S Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Martin H S | Larger | Lower economic need | Higher S:T ratio |
| Sam Houston H S | Larger | Higher economic need | Similar S:T ratio |
| Arlington H S | Similar size | Similar economic need | Similar S:T ratio |
| Bowie H S | Similar size | Lower economic need | Similar S:T ratio |
| Seguin H S | Smaller | Similar economic need | Lower S:T ratio |
Comparisons are relative to Lamar H S's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 3,208
- Students per teacher
- 15.5:1
- Resource Index
- 52/100
- Enrollment
- 2,580
- Students per teacher
- 15.9:1
- Resource Index
- 50/100
- Enrollment
- 2,140
- Students per teacher
- 13.7:1
- Resource Index
- 42/100
- Enrollment
- 1,554
- Students per teacher
- 13.4:1
- Resource Index
- 46/100
Nationwide high 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 (~2,457 students)
Similar student-teacher ratio (~14.9:1)
Frequently asked questions about Lamar H S
How many students attend Lamar H S?
Lamar H S has 2,457 students enrolled. It is a high school in Arlington, TX. CCD year-over-year: 2,546 (2022-23) → 2,479 (2023-24), nearly flat (-67).
What is the student-teacher ratio at Lamar H S?
The student-teacher ratio at Lamar H S is 14.9:1, which is 1% higher than the Texas average of 14.7:1 and 5% lower than the national average of 15.7:1.
What percentage of students receive free lunch at Lamar H S?
69.2% of students at Lamar H S are eligible for free lunch, compared to the Texas average of 61.9%.
What is the racial and ethnic makeup of Lamar H S?
The largest demographic group at Lamar H S is Hispanic or Latino at 48.6% of enrollment, in Arlington, TX. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 63.6/100.
What is the Resource Investment Index for Lamar H S?
Lamar H S has a Resource Investment Index of 54/100 (higher reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Lamar H S rank among high schools in Arlington?
By Resource Investment Index, Lamar H S ranks #2 of 13 high schools in Arlington, TX. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Arlington on the city page.
What other schools are in Arlington Isd?
Besides Lamar H S, Arlington Isd also operates Martin H S (3,535 students), Sam Houston H S (3,208 students), and Arlington H S (2,580 students). See the Arlington Isd district page for the complete list.