Mambrino School (Ranked Top 20% for 2025-26)

3835 Mambrino Hwy
Granbury, TX 76048

( shown in map)

Top 20%

Serving 830 students in grades Prekindergarten-5, Mambrino School ranks in the top 20% of all schools in Texas for overall test scores (math proficiency is top 30%, and reading proficiency is top 30%).

The percentage of students achieving is 55% (which is higher than the Texas state average of 44%). The percentage of students achieving is 65% (which is higher than the Texas state average of 51%).

The student-teacher ratio of 15:1 is higher than the Texas state level of 14:1.

Minority enrollment is 26% of the student body (majority Hispanic), which is lower than the Texas state average of 75% (majority Hispanic).

Quick Facts (2025-26)

Grades: Prekindergarten-5
Enrollment: 830 students
Student-Teacher Ratio: 15:1
Minority Enrollment: 26%
: Top 20% in TX
: 55% (Top 30%)
: 65% (Top 20%)
: 50-54% (Top 30%)
Source: National Center for Education Statistics (NCES), TX Dept. of Education

Top Rankings

Mambrino School ranks among the top 20% of public schools in Texas for:

School Overview

Mambrino School's student population of 830 students has grown by 13% over five school years.

The teacher population of 54 teachers has grown by 14% over five school years.

Grades Offered

Grades Prekindergarten-5

View Data

Distribution of Students By Grade Trends
Grade	Mambrino School
Pre-K	5
Kind	103
1	127
2	154
3	149
4	138
5	154

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Total Students

830 students

View Data

Total Students Trends Over Years (1999-2023)
Year	Mambrino School
2023	886
2022	800
2021	775
2020	732
2019	732
2018	644
2017	644
2016	599
2015	563
2014	539
2013	582
2012	602
2011	642
2010	674
2009	662
2008	642
2007	627
2006	741
2005	717
2004	728
2003	761
2002	803
2001	953
2000	938
1999	918

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Gender %

Total Classroom Teachers

54 teachers

View Data

Total Classroom Teachers Trends Over Years (1999-2023)
Year	Mambrino School
2023	63
2022	56
2021	52
2020	47
2019	47
2018	39
2017	39
2016	36
2015	35
2014	32
2013	35
2012	43
2011	44
2010	47
2009	45
2008	44
2007	43
2006	48
2005	48
2004	47
2003	51
2002	52
2001	60
2000	58
1999	57

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School Calendar

School Rankings

Mambrino School ranks within the top 20% of all 8,096 schools in Texas (based off of combined math and reading proficiency testing data).

The of Mambrino School is 0.41, which is less than the diversity score at state average of 0.64. The school's diversity has stayed relatively flat over five school years.

This School

State Level (TX)

#1602 out of 8096 schools
(Top 20%)

View Data

Overall School Rank Trends Over Years (2012-2023)
Year	Mambrino School
2023	#1602
2022	#1324
2021	#1736
2019	#1964
2018	#1757
2017	#3488
2016	#2633
2015	#3996
2014	#3680
2013	#3437
2012	#1796

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55%

44%

View Data

Math Proficiency Comparison Over Years (2012-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	55%	44%	50%
2022	58%	41%	48%
2021	53%	37%	46%
2019	59%	51%	46%
2018	60%	49%	46%
2017	78%	78%	78%
2016	77%	75%	76%
2015	69%	73%	74%
2014	70%	76%	79%
2013	77%	78%	82%
2012	91%	83%	89%

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65%

51%

View Data

Reading and Language Arts Proficiency Comparison Over Years (2011-2022)
Year	Mambrino School	Texas	Granbury Independent School District
2022	65%	51%	58%
2021	48%	42%	46%
2019	54%	47%	42%
2018	54%	45%	46%
2017	76%	72%	73%
2016	82%	71%	73%
2015	77%	73%	77%
2014	85%	75%	82%
2013	81%	78%	84%
2012	94%	88%	93%
2011	93%	88%	91%

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50-54%

46%

View Data

Science Proficiency Comparison Over Years (2021-2022)
Year	Mambrino School	Texas	Granbury Independent School District
2022	52%	46%	56%
2021	47%	43%	55%

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Student-Teacher Ratio

15:1

14:1

View Data

Student-Teacher Ratio Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	14:1	14:1	14:1
2022	14:1	14:1	14:1
2021	15:1	14:1	15:1
2020	16:1	15:1	16:1
2019	16:1	15:1	16:1
2018	17:1	15:1	16:1
2017	17:1	15:1	16:1
2016	17:1	15:1	16:1
2015	16:1	15:1	15:1
2014	17:1	15:1	15:1
2013	17:1	15:1	15:1
2012	14:1	15:1	14:1
2011	15:1	15:1	13:1
2010	14:1	15:1	14:1
2009	15:1	14:1	14:1
2008	15:1	14:1	14:1
2007	15:1	15:1	14:1
2006	15:1	15:1	15:1
2005	15:1	15:1	15:1
2004	15:1	15:1	15:1
2003	15:1	15:1	15:1
2002	15:1	15:1	15:1
2001	16:1	15:1	15:1
2000	16:1	14:1	15:1
1999	16:1	14:1	15:1

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American Indian

n/a

Asian

View Data

Asian Student Percentage Comparison Over Years (2008-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	1%	5%	3%
2021	1%	5%	3%
2020	1%	5%	2%
2019	1%	5%	2%
2014	1%	4%	1%
2013	1%	4%	1%
2012	1%	4%	1%
2011	1%	4%	1%
2010	1%	4%	1%
2009	1%	4%	1%
2008	1%	4%	1%

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Hispanic

20%

53%

View Data

Hispanic Student Percentage Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	21%	53%	27%
2022	17%	53%	26%
2021	19%	53%	25%
2020	18%	53%	24%
2019	18%	53%	24%
2018	22%	52%	24%
2017	22%	52%	24%
2016	22%	52%	25%
2015	21%	52%	12%
2014	19%	52%	22%
2013	21%	51%	21%
2012	20%	51%	20%
2011	19%	50%	19%
2010	15%	49%	18%
2009	13%	48%	16%
2008	14%	47%	16%
2007	12%	46%	15%
2006	10%	46%	14%
2005	9%	45%	13%
2004	9%	44%	13%
2003	10%	43%	12%
2002	9%	42%	11%
2001	8%	41%	11%
2000	8%	40%	10%
1999	9%	39%	9%

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Black

13%

View Data

Black Student Percentage Comparison Over Years (2006-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	1%	13%	2%
2022	1%	13%	2%
2021	1%	13%	2%
2020	1%	13%	2%
2019	1%	13%	2%
2013	1%	13%	1%
2011	1%	13%	1%
2010	1%	14%	1%
2008	1%	14%	1%
2007	2%	14%	1%
2006	1%	15%	1%

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White

74%

25%

View Data

White Student Percentage Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	72%	26%	64%
2022	77%	26%	65%
2021	74%	26%	66%
2020	77%	27%	67%
2019	77%	27%	67%
2018	75%	28%	70%
2017	75%	28%	70%
2016	76%	29%	73%
2015	76%	29%	38%
2014	77%	29%	74%
2013	74%	30%	75%
2012	74%	31%	76%
2011	76%	31%	77%
2010	82%	33%	79%
2009	85%	34%	81%
2008	83%	35%	81%
2007	85%	36%	82%
2006	87%	36%	84%
2005	90%	38%	84%
2004	89%	39%	84%
2003	88%	40%	86%
2002	89%	41%	87%
2001	90%	42%	87%
2000	92%	44%	90%
1999	89%	45%	89%

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Hawaiian

n/a

Two or more races

View Data

Two or More Races Student Percentage Comparison Over Years (2013-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	5%	3%	4%
2022	5%	3%	4%
2021	5%	3%	4%
2020	3%	2%	3%
2019	3%	2%	3%
2018	3%	2%	3%
2017	3%	2%	3%
2016	2%	2%	2%
2015	2%	2%	3%
2014	1%	2%	1%
2013	1%	2%	1%

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All Ethnic Groups

0.41

0.64

View Data

Diversity Score Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	0.44	0.64	0.49
2022	0.38	0.64	0.47
2021	0.42	0.64	0.47
2020	0.38	0.63	0.45
2019	0.38	0.63	0.45
2018	0.39	0.64	0.42
2017	0.39	0.64	0.42
2016	0.38	0.63	0.41
2015	0.38	0.63	0.34
2014	0.37	0.63	0.40
2013	0.42	0.64	0.40
2012	0.42	0.64	0.39
2011	0.39	0.64	0.38
2010	0.31	0.64	0.34
2009	0.26	0.64	0.31
2008	0.29	0.64	0.31
2007	0.27	0.64	0.29
2006	0.23	0.64	0.27
2005	0.18	0.64	0.27
2004	0.19	0.64	0.26
2003	0.22	0.64	0.25
2002	0.20	0.64	0.24
2001	0.19	0.64	0.22
2000	0.17	0.65	0.19
1999	0.19	0.65	0.19

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Participates in the

Yes

Eligible for

49%

57%

View Data

Free Lunch Eligibility Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	47%	57%	48%
2022	47%	57%	49%
2021	47%	56%	47%
2020	50%	56%	47%
2019	50%	56%	47%
2018	52%	53%	42%
2017	52%	53%	42%
2016	50%	53%	43%
2015	49%	52%	41%
2014	48%	53%	42%
2013	50%	53%	45%
2012	46%	44%	40%
2011	40%	44%	40%
2010	38%	43%	37%
2009	32%	40%	33%
2008	30%	39%	30%
2007	32%	39%	32%
2006	30%	40%	31%
2005	25%	39%	30%
2004	23%	39%	28%
2003	25%	39%	27%
2002	20%	38%	24%
2001	23%	38%	21%
2000	27%	38%	23%
1999	24%	39%	22%

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Eligible for

View Data

Reduced-Price Lunch Eligibility Comparison Over Years (1999-2023)
Year	Mambrino School	Texas	Granbury Independent School District
2023	6%	5%	6%
2022	2%	4%	3%
2021	4%	4%	6%
2020	5%	4%	6%
2019	5%	4%	6%
2018	5%	6%	6%
2017	5%	6%	6%
2016	5%	6%	5%
2015	4%	6%	6%
2014	6%	7%	6%
2013	7%	7%	7%
2012	7%	7%	6%
2011	9%	7%	6%
2010	9%	8%	8%
2009	7%	8%	7%
2008	10%	8%	8%
2007	7%	8%	7%
2006	7%	8%	7%
2005	6%	8%	7%
2004	3%	7%	7%
2003	6%	7%	6%
2002	9%	7%	7%
2001	7%	7%	6%
2000	10%	8%	9%
1999	8%	8%	7%

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School Statewide Testing

School District Name

Granbury Independent School District

Source: National Center for Education Statistics (NCES), TX Dept. of Education

Profile last updated: 02/09/2025

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Frequently Asked Questions

What is Mambrino School's ranking?

Mambrino School is ranked #1602 out of 8,096 schools, which ranks it among the top 20% of public schools in Texas.

What schools are Mambrino School often compared to?

Mambrino Schoolis often viewed alongside schools like Tolar Elementary School by visitors of our site.

What percent of students have achieved state testing proficiency in math and reading?

55% of students have achieved math proficiency (compared to the 44% TX state average), while 65% of students have achieved reading proficiency (compared to the 51% TX state average).

How many students attend Mambrino School?

830 students attend Mambrino School.

What is the racial composition of the student body?

74% of Mambrino School students are White, 20% of students are Hispanic, 4% of students are Two or more races, 1% of students are Asian, and 1% of students are Black.

What is the student-teacher ratio of Mambrino School?

Mambrino School has a student ration of 15:1, which is higher than the Texas state average of 14:1.

What grades does Mambrino School offer ?

Mambrino School offers enrollment in grades Prekindergarten-5

What school district is Mambrino School part of?

Mambrino School is part of Granbury Independent School District.