Mambrino School

Summary:

Mambrino School is an elementary school in Granbury, Texas, serving 886 students in grades PK-5 as part of the Granbury Independent School District. While the school generally performs well academically, particularly in reading, it has a higher percentage of economically disadvantaged and special education students compared to some nearby schools.

Mambrino School stands out for its strong academic performance, with students scoring above the district and state averages on STAAR tests, especially in reading. In 2022-2023, the school's 3rd, 4th, and 5th-grade reading proficiency rates were 51%, 62%, and 56%, respectively, compared to the district's 56%, 55%, and 61%, and the state's 50%, 47%, and 56%. However, the school has a relatively high percentage of special education students and economically disadvantaged students, at 53.39% free/reduced lunch recipients in 2022-2023. This is higher than some nearby schools, such as Nettie Baccus Elementary and John and Lynn Brawner Elementary, which have more diverse student populations.

Mambrino School's performance has fluctuated over the years, with its statewide ranking ranging from 887 out of 4,581 Texas elementary schools in 2021-2022 to 1,474 out of 4,647 in 2022-2023. This suggests the school's performance may be inconsistent or influenced by external factors. Additionally, the school has seen a decrease in the percentage of Hispanic students, from 20.99% in 2022-2023 to 16.88% in 2021-2022 and 18.45% in 2020-2021, a trend worth monitoring. Overall, Mambrino School appears to be a relatively strong-performing elementary school within the Granbury ISD, with some areas for improvement, particularly in addressing the needs of its diverse student population and maintaining consistent academic performance.


Detail:

Public PK, KG-5

 3835 Mambrino Hwy
       Granbury, TX  76048-6624


(817) 408-4900

District: Granbury Independent School District (Isd)

SchoolDigger Rank:
1474th of 4,647 Texas Elementary Schools

Per Pupil Expenditures:  $9,788 Help


Students who attend Mambrino School usually attend:

Middle:    Granbury Middle
High:    Granbury High School

Student/teacher ratio:  14.1 Help
Number of students:  886

Racial breakdown:

White:
72.2%
Hispanic:
21.0%
Two or more races:
5.3%
more

Free/discounted lunch recipients:  53.4% Help


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Performance Trends
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Compare Details Mambrino School ranks better than 68.3% of elementary schools in Texas. It also ranks 3rd among 5 ranked elementary schools in the Granbury Independent School District (Isd). (See more...)
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Compare Details In 2023 the calculated Average Standard Score was 62.57. (See more...)
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The high school dropout rate measures the percentage of students who do not complete their high school education.
Student Body
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Compare Details Mambrino School has the largest elementary school student body size in the Granbury Independent School District (Isd). Racial makeup is: White (72.2%), Hispanic (21%), two or more races (5.3%). (See more...)
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Compare Details 53.4% of students are receiving a free or discounted lunch. (See more...)
Teachers
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Compare Details The student/teacher ratio at Mambrino School is 14.1, which is the 3rd best among 5 elementary schools in the Granbury Independent School District (Isd). (See more...)
Help
Compare Mambrino School employs 62.5 full-time teachers.
Finance
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Compare Details The average total spent per student at Mambrino School is $9,788, which is the 2nd highest among 5 elementary schools in the Granbury Independent School District (Isd).
Schooldigger 2023 Rankings:

Mambrino School:

SchoolDigger ranks Mambrino School 1474th of 4647 Texas public elementary schools. (See Mambrino School in the ranking list.)

Elementary School Test Score Ratings by Student Subgroup:


Special Education students:
Low Socio Economic Status students:
Female students:
Gifted and Talented students:
Male students:
Hispanic students:
White students:


Granbury Independent School District (Isd):

SchoolDigger ranks Granbury Independent School District (Isd) 293rd of 968 Texas school districts. (See district ranking list.)


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Rank History for Mambrino School

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Rank History for all students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2004 82.57 277th 3465 92.0%
2005 73.64 774th 3475 77.7%
2006 77.19 580th 3476 83.3%
2007 75.00 752nd 3724 79.8%
2008 63.97 1416th 3768 62.4%
2009 56.89 1876th 3884 51.7%
2010 64.14 1509th 3937 61.7%
2011 69.82 1194th 4095 70.8%
2012 59.81 1714th 4206 59.2%
2013 55.75 1964th 4221 53.5%
2014 55.51 2014th 4260 52.7%
2015 48.73 2404th 4320 44.4%
2016 65.33 1500th 4286 65.0%
2017 53.50 1782nd 4329 58.8%
2018 61.84 1401st 4359 67.9%
2019 64.01 1309th 4479 70.8%
2021 71.93 1037th 4578 77.3%
2022 76.52 887th 4581 80.6%
2023 62.57 1474th 4647 68.3%
See the entire list of Texas Elementary School Rankings!

Rank History for Multi-racial students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 10.70 988th 1046 5.5%
2021 42.84 568th 961 40.9%
2022 50.51 529th 1004 47.3%
See the entire list of Best Texas Elementary Schools for Multi-racial Students!

Rank History for English Language Learner students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2021 53.50 1296th 3446 62.4%
See the entire list of Best Texas Elementary Schools for English Language Learner Students!

Rank History for Special Education students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 46.74 1598th 3558 55.1%
2019 70.40 559th 3684 84.8%
2021 63.90 766th 3799 79.8%
2022 78.62 409th 3952 89.7%
2023 52.35 1505th 4086 63.2%
See the entire list of Best Texas Elementary Schools for Special Education Students!

Rank History for Low Socio Economic Status students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 51.11 1954th 4264 54.2%
2019 57.60 1527th 4309 64.6%
2021 67.27 997th 4451 77.6%
2022 70.66 871st 4477 80.5%
2023 58.02 1647th 4521 63.6%
See the entire list of Best Texas Elementary Schools for Low Socio Economic Status Students!

Rank History for Female students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 61.48 1402nd 4306 67.4%
2019 67.70 1124th 4348 74.1%
2021 66.10 1221st 4499 72.9%
2022 70.52 1078th 4561 76.4%
2023 61.39 1497th 4588 67.4%
See the entire list of Best Texas Elementary Schools for Female Students!

Rank History for Gifted and Talented students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 61.79 1405th 3106 54.8%
2019 69.99 820th 3184 74.2%
2021 65.83 1149th 3006 61.8%
2022 48.79 1912th 2958 35.4%
2023 39.21 2281st 2980 23.5%
See the entire list of Best Texas Elementary Schools for Gifted and Talented Students!

Rank History for At Risk students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 38.15 2794th 4240 34.1%
2019 26.09 3644th 4295 15.2%
2021 44.39 2236th 4331 48.4%
2022 39.65 2840th 4461 36.3%
See the entire list of Best Texas Elementary Schools for At Risk Students!

Rank History for Male students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 59.36 1517th 4319 64.9%
2019 58.81 1516th 4357 65.2%
2021 75.48 854th 4498 81.0%
2022 77.84 801st 4563 82.4%
2023 62.09 1473rd 4585 67.9%
See the entire list of Best Texas Elementary Schools for Male Students!

Rank History for Hispanic students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 69.87 864th 4168 79.3%
2019 51.75 1866th 4188 55.4%
2021 43.23 2372nd 4329 45.2%
2022 55.08 1753rd 4376 59.9%
2023 60.94 1422nd 4401 67.7%
See the entire list of Best Texas Elementary Schools for Hispanic Students!

Rank History for White students at Mambrino School

Year Avg Standard Score Statewide Rank Total # Ranked Elementary Schools TX State Percentile SchoolDigger Rating
2018 41.54 1921st 3127 38.6%
2019 45.28 1795th 3142 42.9%
2021 54.89 1301st 3082 57.8%
2022 60.81 1138th 3082 63.1%
2023 41.88 1950th 3106 37.2%
See the entire list of Best Texas Elementary Schools for White Students!

Data source: test scores: Texas Education Agency, rankings: SchoolDigger.com

As you review the school rankings data, please be aware that some of the information from certain demographics is missing. The reason for this omission is that the data has been redacted from the source data itself due to low population samples in these specific demographic groups.

Redacting data from low population samples is a necessary step to ensure the reliability and accuracy of the results, as small sample sizes may not be representative of the broader population. Additionally, this measure helps protect the privacy of individuals belonging to these demographic groups.

Mambrino School Test Scores
Tests: 
  
Grades: 
  
Years: 
  
Group by: 
District Scores:
State Scores:    
  
Subgroup: 





Data source: Texas Education Agency

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Enrollment information for Mambrino School

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Year White African American Asian Hispanic American Indian Pacific Islander Two or More Races Not Specified Total
1998 812 10 2 83 11 n/a n/a 0 918
1999 829 6 3 82 12 n/a n/a 0 932
2000 870 7 2 80 10 n/a n/a 0 969
2001 855 2 4 79 13 n/a n/a 0 953
2002 672 2 2 77 8 n/a n/a 0 761
2003 672 2 2 77 8 n/a n/a 0 761
2004 652 2 4 65 5 n/a n/a 0 728
2005 642 3 3 64 5 n/a n/a 0 717
2006 651 4 4 77 5 n/a n/a 0 741
2007 531 10 3 78 5 n/a n/a 0 627
2008 535 5 5 92 5 n/a n/a 0 642
2009 562 3 5 88 4 n/a n/a 0 662
2010 551 8 7 102 6 n/a n/a 0 674
2011 489 4 4 125 8 0 12 0 642
2012 448 3 6 121 10 0 14 0 602
2013 431 4 6 120 11 0 10 0 582
2014 415 1 3 103 10 1 6 0 539
2015 426 3 4 114 6 1 9 0 563
2016 446 4 4 129 3 2 11 0 599
2017 472 6 4 138 5 4 15 0 644
2018 444 3 4 126 2 2 19 0 600
2019 566 5 5 130 3 3 20 0 732
2020 605 7 6 123 2 2 28 0 773
2021 576 6 4 143 3 2 41 0 775
2022 614 5 3 135 1 2 40 0 800
2023 640 6 5 186 0 2 47 0 886

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Enrollment/Ethnicity

For more information about how the Department of Education defines ethnicity, see Defining Race and Ethnicity Data, National Center for Education Statistics

Students eligible for free or discounted lunch at Mambrino School

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1998 918 57.0 16.1 26.8
1999 932 57.0 16.4 31.4
2000 969 58.0 16.7 35.8
2001 953 60.0 15.9 30.4
2002 761 51.7 14.7 30.1
2003 761 51.7 14.7 30.1
2004 728 47.9 15.2 26
2005 717 48.7 14.7 31
2006 741 48.1 15.4 37.8
2007 627 43.6 14.4 39.6
2008 642 43.9 14.6 39.3
2009 662 45.1 14.7 39.1
2010 674 47.0 14.3 46.7
2011 642 44.1 14.5 48.8
2012 602 43.1 13.9 53
2013 582 35.0 16.6 56.4
2014 539 32.1 16.7 53.4
2015 563 35.0 16.0 53.8
2016 599 36.0 16.6 56.3
2017 644 39.4 16.3 58.1
2018 600 40.6 14.7 54.3
2019 732 47.4 15.4 55.1
2020 773 48.8 15.8 50.5
2021 775 52.1 14.8 51
2022 800 55.9 14.3 48.1
2023 886 62.5 14.1 53.4

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Students eligible for discounted/free lunch:

The National School Lunch Program (NSLP) provides low-cost or free meals to students in U.S. public and nonprofit private schools based on household income. Those with incomes below 130% of the poverty line receive free lunch, while those between 130% and 185% qualify for reduced-price lunch. The percentage of students receiving free or reduced-price lunch serves as a marker for poverty, as it reflects the socioeconomic status of families in a given school or district. A higher FRPL rate typically indicates a higher concentration of low-income families, suggesting that the school or district may face additional challenges in providing adequate resources and support for student success.

Student/Teacher Ratio Mambrino School

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Compare
Year # Students Full-time Teachers Student/Teacher ratio % Free/Discounted Lunch
1998 918 57.0 16.1 26.8
1999 932 57.0 16.4 31.4
2000 969 58.0 16.7 35.8
2001 953 60.0 15.9 30.4
2002 761 51.7 14.7 30.1
2003 761 51.7 14.7 30.1
2004 728 47.9 15.2 26
2005 717 48.7 14.7 31
2006 741 48.1 15.4 37.8
2007 627 43.6 14.4 39.6
2008 642 43.9 14.6 39.3
2009 662 45.1 14.7 39.1
2010 674 47.0 14.3 46.7
2011 642 44.1 14.5 48.8
2012 602 43.1 13.9 53
2013 582 35.0 16.6 56.4
2014 539 32.1 16.7 53.4
2015 563 35.0 16.0 53.8
2016 599 36.0 16.6 56.3
2017 644 39.4 16.3 58.1
2018 600 40.6 14.7 54.3
2019 732 47.4 15.4 55.1
2020 773 48.8 15.8 50.5
2021 775 52.1 14.8 51
2022 800 55.9 14.3 48.1
2023 886 62.5 14.1 53.4

Data source: National Center for Education Statistics, U.S. Dept of Education.

About Student-Teacher Ratio

Student/teacher ratio is calculated by dividing the total number of students by the total number of full-time equivalent teachers. Please note that a smaller student/teacher ratio does not necessarily translate to smaller class size. In some instances, schools hire teachers part time, and some teachers are hired for specialized instruction with very small class sizes. These and other factors contribute to the student/teacher ratio. Note: For private schools, Student/teacher ratio may not include Pre-Kindergarten.
Finances

Per Pupil Expenditures for Mambrino School

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YearExpenditures from Federal FundsExpenditures from State and Local FundsTotal Expenditures Per Pupil (All Funds)
2019 $1,268 (13.3%) $8,244 (86.7%) $9,512
2020 $1,466 (15.2%) $8,159 (84.8%) $9,625
2021 $1,767 (18.1%) $8,022 (82.0%) $9,788

Data source: Texas Department of Education
Pre and Post Pandemic Data

Impact of COVID-19 on Mambrino School

The coronavirus has had a profound impact on education in America. Learning shifted online overnight, attendance numbers dwindled, and enrollment decreased. SchoolDigger.com is making it easier for you to better assess how COVID-19 has impacted your school. Through the collection of pre-pandemic (2019) and current data, SchoolDigger.com is sharing test scores, enrollment numbers and school demographics from schools across the country – and we make it easy to see how impacted schools compare locally and statewide.

Rankings

Rank
Pre-pandemic (2018-2019)
Rank
Post pandemic (2022-2023)
Change (%)
Ranks 1309th of 4479 Elementary schoolsRanks 1474th of 4647 Elementary schools
 2.5%

Test Scores

% proficient
Pre-pandemic (2018-2019)
% proficient
Post pandemic (2022-2023)
Change (%)
3rd Grade Reading (Mambrino School)3851
 13%
   3rd Grade Reading (Granbury Independent School District (Isd))3956
 17%
   3rd Grade Reading (Texas)4450
 6%
3rd Grade Mathematics (Mambrino School)5247
 5%
   3rd Grade Mathematics (Granbury Independent School District (Isd))4447
 3%
   3rd Grade Mathematics (Texas)4843
 5%
4th Grade Reading (Mambrino School)5062
 12%
   4th Grade Reading (Granbury Independent School District (Isd))4355
 12%
   4th Grade Reading (Texas)4347
 4%
4th Grade Mathematics (Mambrino School)5662
 6%
   4th Grade Mathematics (Granbury Independent School District (Isd))4860
 12%
   4th Grade Mathematics (Texas)4647
 1%
5th Grade Reading (Mambrino School)6156
 5%
   5th Grade Reading (Granbury Independent School District (Isd))5361
 8%
   5th Grade Reading (Texas)5156
 5%
5th Grade Mathematics (Mambrino School)5944
 15%
   5th Grade Mathematics (Granbury Independent School District (Isd))6163
 2%
   5th Grade Mathematics (Texas)5650
 6%
5th Grade Science (Mambrino School)4629
 17%
   5th Grade Science (Granbury Independent School District (Isd))5545
 10%
   5th Grade Science (Texas)4834
 14%

Student Body

Number of students
Pre-pandemic (2018-2019)
Number of students
Post pandemic (2022-2023)
Change (%)
Total Students732886
 21%
African American56
 20%
American Indian30
 100%
Asian55
Hispanic130186
 43.1%
Pacific Islander32
 33.3%
White566640
 13.1%
Two or More Races2047
 135%
% Free/Discounted Lunch Recipients55.1%53.4%
 1.7%


Schools Near Mambrino School









Frequently Asked Questions about Mambrino School

Students who attend Mambrino School usually go on to attend:

Middle : Granbury Middle
High : Granbury High School

Mambrino School ranks 1474th of 4647 Texas elementary schools. SchoolDigger rates this school 3 stars out of 5.

Students at Mambrino School are 72% White, 21% Hispanic, 5% Two or more races.

In the 2022-23 school year, 886 students attended Mambrino School.


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SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Texas Education Agency.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.





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