- Enrollment
- 1,774
- Students per teacher
- 23.3:1
- Resource Index
- 12/100
Elementary school (grades K-5) · Nogales, AZ
Mary L Welty Elementary School
Federal NCES profile for Mary L Welty Elementary School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 22/100.
2024-25 NCES dataElementary school (grades K-5)NCES 040553000454
👥 S:T ratio 20
🌟 Gifted program 70
🎓 Counselors 0
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Mary L Welty Elementary School earns 22/100 on the Resource Investment Index, with class sizes larger than 77% of Arizona schools. It is also less racially and ethnically mixed than most Arizona schools.
- #4 of 7
- elementary schools in Nogales · Resource Index
- 22
- Resource Index · Lower
- 20.1:1
- large classes for Arizona
- 86.8%
- free-lunch eligible
Mary L Welty Elementary School has class sizes larger than 77% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Mary L Welty Elementary School ranks #4 of 7 elementary schools in Nogales, AZ.
School address
District: Nogales Unified District (4457) · Arizona
NCES ID 040553000454 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
+15 students YoY
Mary L Welty Elementary School held near 379 students from 2022-23 to 2023-24 (+15 headcount).
Teacher FTE added 19.0 → 20.0 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
+15 students YoY 040553000454 · Nogales, AZ Elementary · SMALL · TRAD
381 enr · 20.1:1 · 86.8% lunch · RII 22
Nearest enrollment peer: Nogales High School (1,774 students)
Mary L Welty Elementary School held near 379 students from 2022-23 to 2023-24 (+15 headcount). Teacher FTE added 19.0 → 20.0 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
Mary L Welty Elementary School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Nogales High S
Nogales High School
1,774 students
- Desert Shadows
Desert Shadows Middle School
784 students
- Wade Carpenter 547
Wade Carpenter Middle School
547 students
- Francisco Vasq 508
Francisco Vasquez De Coronado Elementary School
508 students
- Lincoln Elemen 421
Lincoln Elementary School
421 students
- This school 381
Mary L Welty Elementary School
381 students
What this shows Mary L Welty Elementary School reports 381 students on the CCD universe file.
How Mary L Welty Elementary School compares
Mary L Welty Elementary School held steady on CCD headcount: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 20.1:1 | ▲ 18% | 17:1 | 15.7:1 |
| Free-lunch eligible | 86.8% | ▲ 80% | 48.3% | 51.7% |
| Enrollment | 381 | top 54% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
20.1:1
Leaner classes than 16% of US schools, heavier class loads than most.
381
Bigger than 44% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
86.8%
free-lunch eligible
- 80% above the Arizona average of 48.3%
Well above the 40% Title I schoolwide threshold, among the highest-need profiles in the state; federal funds support the whole school, not individual students.
Staffing depth
20.1:1
students per teacher
- 18% above state mean
Top 77% in Arizona - lower ratio than 23% of state schools
Above 20:1, running heavier than the typical U.S. public school; staffing is comparatively stretched.
Engagement
51.2%
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
$9,157
per pupil, district-wide
- below Arizona avg of $13,502
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors0.5 FTE
Student-support staffing from the Civil Rights Data Collection.
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: 0.3 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 100.0%
Largest group: Hispanic or Latino at 100.0% of enrollment.
Student-body diversity index 0.0/100
Simpson diversity index - at 0.0, Mary L Welty Elementary School is less mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
District finance for Nogales Unified District (4457) reports $9,157 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Mary L Welty Elementary School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Nogales High School | Larger | Lower economic need | Higher S:T ratio |
| Desert Shadows Middle School | Larger | Lower economic need | Higher S:T ratio |
| Wade Carpenter Middle School | Larger | Similar economic need | Similar S:T ratio |
| Francisco Vasquez De Coronado Elementary School | Larger | Lower economic need | Similar S:T ratio |
| Lincoln Elementary School | Similar size | Similar economic need | Similar S:T ratio |
Comparisons are relative to Mary L Welty Elementary School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 784
- Students per teacher
- 22.4:1
- Resource Index
- 18/100
- Enrollment
- 547
- Students per teacher
- 21:1
- Resource Index
- 23/100
- Enrollment
- 508
- Students per teacher
- 21.2:1
- Resource Index
- 21/100
- Enrollment
- 421
- Students per teacher
- 19.1:1
- Resource Index
- 27/100
Nationwide elementary 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 (~381 students)
Frequently asked questions about Mary L Welty Elementary School
How many students attend Mary L Welty Elementary School?
Mary L Welty Elementary School has 381 students enrolled. It is an elementary school in Nogales, AZ. CCD year-over-year: 364 (2022-23) → 379 (2023-24), nearly flat (+15).
What is the student-teacher ratio at Mary L Welty Elementary School?
The student-teacher ratio at Mary L Welty Elementary School is 20.1:1, which is 18% higher than the Arizona average of 17:1 and 28% higher than the national average of 15.7:1.
What percentage of students receive free lunch at Mary L Welty Elementary School?
86.8% of students at Mary L Welty Elementary School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Mary L Welty Elementary School?
The largest demographic group at Mary L Welty Elementary School is Hispanic or Latino at 100.0% of enrollment, in Nogales, AZ.
What is the Resource Investment Index for Mary L Welty Elementary School?
Mary L Welty Elementary School has a Resource Investment Index of 22/100 (lower 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 Mary L Welty Elementary School rank among elementary schools in Nogales?
By Resource Investment Index, Mary L Welty Elementary School ranks #4 of 7 elementary schools in Nogales, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Nogales on the city page.
What other schools are in Nogales Unified District (4457)?
Besides Mary L Welty Elementary School, Nogales Unified District (4457) also operates Nogales High School (1,774 students), Desert Shadows Middle School (784 students), and Wade Carpenter Middle School (547 students). See the Nogales Unified District (4457) district page for the complete list.