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If you had an hour of school board time for MAMBRINO SCHOOL, what would you bring up?
Community prompt from u/allk12. Replies below.
Enrollment
799
Elementary
DISTRICT 646 · STATE 519
SCHOOL COMMUNITY·GRANBURY ISD·NCES 482139007659
Mambrino School
3835 MAMBRINO HWY, GRANBURY, TX 76048 · (817) 408-4900 · Hood County
GRADES PK–05ELEMENTARY41-RURALTITLE IREGULAR SCHOOL799 STUDENTS
B
allk12 Grade
Scored higher than 56% of Texas public elementary schools
- B+Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
- B-Beats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
- C-Three-year trend Change in reading and math proficiency over the last three test years.
Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Texas public elementary schools
Student : Teacher
16.0:1
50 FTE teachers
DISTRICT 15.6:1 · STATE 15.1:1
Free / Reduced Lunch
46%
365 students
DISTRICT 57% · STATE 65%
Community
1
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 |
|---|---|---|
| Pre-K | 5 | 1% |
| Kindergarten | 119 | 15% |
| Grade 1 | 109 | 14% |
| Grade 2 | 130 | 16% |
| Grade 3 | 152 | 19% |
| Grade 4 | 148 | 19% |
| Grade 5 | 136 | 17% |
This year's kindergarten class (119) is 13% smaller than its 5th grade class (136).
Student demographics
42%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 51% · STATE 63% · 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
STAAR 2025-26 . % Meets Grade Level or AboveReading
53.0%
TX avg 54.5% . +20.0pp since 2020
Mathematics
41.0%
TX avg 45.3% . +0.0pp since 2020
What this means: On the STAAR, Texas's statewide test, about 53 of every 100 students at this school read at grade level and about 41 of 100 do math at grade level. Across all Texas schools, those numbers are about 55 and 45. Reading scores are up about 20 points since 2020, while math scores have held steady.
Performance levels, 2025-26
| Subject | Masters Grade Level | Meets Grade Level | Approaches Grade Level | Did Not Meet Grade Level |
|---|---|---|---|---|
| Reading | 27.0% | 26.0% | 22.0% | 25.0% |
| Mathematics | 17.0% | 24.0% | 26.0% | 33.0% |
Share of tested students at each STAAR level. Each student counts in one level, so a row adds to about 100%.
STAAR results by year
| School year | Reading | Mathematics |
|---|---|---|
| 2025-26 | 53.0% | 41.0% |
| 2024-25 | 61.0% | 52.0% |
| 2023-24 | 58.0% | 51.0% |
| 2022-23 | 47.0% | 53.0% |
| 2021-22 | 53.0% | 53.0% |
| 2020-21 | 33.0% | 41.0% |
% Meets Grade Level or Above, all students and all tested grades.
Source: STAAR. 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
52.6%
composite math + reading, all grades
Predicted
54.2%
based on TX schools with similar FRL share
Beats by
-1.5pp
below demographic expectation
What this means: About 53% of students here test proficient in math and reading, compared with the roughly 54% typical for Texas 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 Texas'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 Mambrino School
Mambrino School's state test result (52.6% proficient) is higher than 2 of the 4 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Mambrino School this school | 799 | 45.7% | 52.6% |
| Bridge City Elementary School BRIDGE CITY | 813 | 45.9% | N/A |
| Acton Elementary School GRANBURY | 841 | 43.0% | 61.1% |
| Goshen Creek Elementary School SPRINGTOWN | 674 | 42.1% | 50.3% |
| Huffman Elementary School HUFFMAN | 915 | 44.8% | 31.8% |
| Nichols Sawmill Elementary School MAGNOLIA | 671 | 46.1% | 58.6% |
Matched among Texas 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 Mambrino School ranks
Among elementary schools| Measure | This school | In Texas | In Hood County |
|---|---|---|---|
| State test proficiency ranked highest first | 52.6% | #1,223 of 4,401 | #4 of 7 |
| Math proficiency ranked highest first | 41.0% | #2,739 of 4,466 ▼ 1,287 | #6 of 7 ▼ 2 |
| Reading proficiency ranked highest first | 53.0% | #2,157 of 4,466 ▼ 819 | #5 of 7 ▼ 2 |
| 3-year test score change ranked biggest drop first | -3.0pp | #852 of 3,998 | #2 of 6 |
| Enrollment ranked largest first | 799 | #456 of 4,938 | #2 of 8 |
| Students per teacher ranked fewest first | 16.0:1 | #3,261 of 4,622 | #7 of 8 |
| Diversity index ranked most diverse first | 42.4% | #2,927 of 4,628 | #6 of 8 |
| Free and reduced lunch ranked highest share first | 45.7% | #3,759 of 4,789 | #5 of 8 |
| Enrollment change since 2017-18 ranked fastest growth first | +33.2% | #220 of 1,307 | N/A |
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
799
+24 (+3%) vs 2020
-16% since 2000-01, when it was 953
Student : Teacher
16.0:1
was 14.9:1
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 | 799 | 50.1 | 16.0:1 | 46% (365) |
| 2023-24 | 830 | 54.5 | 15.2:1 | 50% (419) |
| 2022-23 | 886 | 62.5 | 14.2:1 | 53% (473) |
| 2020-21 | 775 | 52 | 14.9:1 | 51% (395) |
| 2017-18 | 600 | 40.7 | 14.8:1 | 54% (326) |
| 2015-16 | 599 | 35 | 17.1:1 | 56% (337) |
| 2010-11 | 642 | 44 | 14.6:1 | 49% (313) |
| 2000-01 | 953 | 60 | 15.9:1 | 30% (290) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Mambrino School.
Since 2017-18: students up 33% (600 to 799); teachers up 23% (40.7 to 50.1).
About Mambrino School
The public elementary school Mambrino School is located in GRANBURY, Texas. The school runs pre-K through 5 and enrolls 799 students. Elementary schools in Texas average about 519 students, which makes this school 54% bigger than average.
GRANBURY ISD enrolls 7,962 students, and its 10 schools include Mambrino School.
At Mambrino School, 73% of students are White. The school is also 21% Hispanic and 4% multiracial. That is lower than the 85% White share among all Hood County residents. The diversity index for Mambrino School is 42%. For US public schools as a whole it is 70%.
With 50.1 full-time-equivalent teachers, the student-to-teacher ratio is about 16.0:1. Statewide, elementary schools in Texas average 15.1:1. Roughly 46% of students come from households that qualify for free or reduced-price lunch.
On the allk12 Grade, Mambrino School lands at B, ahead of 56% of Texas public elementary schools.
On the allk12 BeatsExpectations measure, Mambrino School is 1.5 points below the average proficiency rate across its state test results predicted for its free or reduced-price lunch share: 52.6% actual, 54.2% predicted. That is outside both the top and bottom 10% in Texas.
In the surrounding county, Hood County, median household income comes to about $88,160, a bachelor's degree or higher is held by about 33% of adults, and the share of residents below the poverty line is 6%. The county's public schools total 18, with about 9,530 students.
Among nearby public schools, Acton Elementary School is closest at about 4.3 miles. There are 4 more public schools inside five miles. On state test proficiency, Mambrino School ranks 4th in a group of 5 nearby schools.
Mambrino School has an NCES locale of Rural: Fringe.
Between 2020-21 and 2024-25, Mambrino School had a net gain of 24 students, or 3%. By 2024-25, the school had 16.0 students per teacher, compared with 14.9 in 2020-21.
Parents, students, and staff can share information on pickup and drop-off, after-school programs, and teacher feedback here. Members of the school community can share what they know.
Hood County at a glance
View full county profilePopulation
65,894
Census ACS
Median income
$88,160
Household, ACS
Bachelor's+
33%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
18
9,530 students
Quick facts
Related schools
Other schools in GRANBURY ISD
- Granbury High SchoolHigh · 2,215 students
- Acton Middle SchoolMiddle · 938 students
- Granbury Middle SchoolMiddle · 890 students
- Acton Elementary SchoolElementary · 841 students
- John and Lynn Brawner Elementary SchoolElementary · 751 students
- Nettie Baccus Elementary SchoolElementary · 595 students
Other schools in GRANBURY
- Granbury High SchoolHigh · 2,215 students
- Acton Middle SchoolMiddle · 938 students
- Granbury Middle SchoolMiddle · 890 students
- Acton Elementary SchoolElementary · 841 students
- John and Lynn Brawner Elementary SchoolElementary · 751 students
- Nettie Baccus Elementary SchoolElementary · 595 students
Nearby schools
- Acton Elementary School4.3 mi · 841
- Premier H S of Granbury4.9 mi · 153
- Texasworks - Granbury4.9 mi · 6
- Oak Woods School5.0 mi · 544
- Acton Middle School5.1 mi · 938
- John and Lynn Brawner Elementary School5.8 mi · 751
Frequently asked questions
About Mambrino SchoolHow many students attend Mambrino School?
Mambrino School enrolls approximately 799 students in grades PK-05.
What age range does Mambrino School serve?
Mambrino School serves students from grade PK through grade 05.
How many students per teacher at Mambrino School?
Approximately 16.0:1 students per teacher at Mambrino School.
What is the student diversity at Mambrino School?
Student demographics at Mambrino School are roughly 73% White, 21% Hispanic, 1% Black, 1% Asian, 4% Two or more.
What district is Mambrino School in?
Mambrino School is part of GRANBURY ISD.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.