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Mambrino School

Q: Is Mambrino School a good school?

Mambrino School ranks 2643 rd of 4627 Texas elementary schools. SchoolDigger rates this school 2 stars out of 5.

Public Grades PK, KG-5

2643^rd

SchoolDigger Rank ?

of 4,627 Texas Elementary Schools

Better than 43% of Texas elementary schools

Summary

Mambrino School is a PK-5 elementary school in Granbury, TX, serving 799 students within the Granbury Independent School District (Isd), a district ranked in the 60th percentile statewide.

Mambrino has historically been a strong performer, consistently earning 3 or 4 stars from SchoolDigger over the past decade. However, the most recent data reveals a significant and concerning drop in its overall state ranking, falling from the 72nd percentile to the 43rd percentile. This sharp decline is the central story of the school's current performance. In the most recent testing cycle, only 33.6% of 3rd graders and 35.8% of 4th graders were proficient in math, significantly below the district average. This is a key differentiator, as other high-performing nearby schools like Oak Woods School and Acton Elementary are posting math proficiency rates 15-25 percentage points higher in these grades. The contrast between Mambrino and Oak Woods (just 5 miles away) is stark, with Oak Woods outperforming Mambrino in every single tested subject and grade level, often by a wide margin.

Mambrino has a relatively low percentage of students receiving free/reduced lunch (45.7%) compared to other nearby schools like Nettie Baccus Elementary (77%) and John And Lynn Brawner Elementary (66.7%). Typically, a lower poverty rate is correlated with higher test scores. The fact that Mambrino is underperforming despite having a more affluent student body than many of its peers is a significant red flag, suggesting that the school's current struggles are not primarily driven by socioeconomic factors but by other internal dynamics. The school's ability to return to its historical strength will depend on identifying and restoring the support systems that were previously effective.

799

Students ?

15.9

Student/teacher ratio ?

$9,716

Per pupil spending ?

45.7%

Free/discounted lunch ?

3835 Mambrino Hwy
Granbury, TX 76048-6624

(817) 408-4900

District: Granbury Independent School District (Isd)

Students who attend Mambrino School usually attend:

Middle:	Granbury Middle
High:	Granbury High School

Racial breakdown:

White:

72.7%

Hispanic:

21.3%

Two or more races:

4.0%

See top rated Texas elementary schools

Compare Mambrino School to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 65th percentile in 2016 → 43rd in 2026

Worth a look

!Test scores below the Texas average (45% vs 51% meeting standards)

!Ranking has slipped — down 22 percentile points since 2016

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2025-2026) ?

This school45%

District avg54%

Texas avg51%

2,643^rd of 4,627

Texas public elementary schools ?

Bottom 43%▼ down 22 pts since 2016

From top 35% (2016) to bottom 43% (2026)

See the entire ranking list of Texas Elementary Schools →

★★★★★

SchoolDigger rating ?

4^th of 5Elementary Schools in the Granbury Independent School District (Isd)

384^th of 951Granbury Independent School District (Isd) among Texas districts

Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)

Show full rank history (all student groups)

All Students

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	41.3	2643 of 4627	42.9%	★★☆☆☆
2025	65.8	1316 of 4651	71.7%	★★★★☆
2024	66.8	1260 of 4710	73.2%	★★★★☆
2023	62.6	1474 of 4647	68.3%	★★★☆☆
2022	76.5	887 of 4581	80.6%	★★★★☆
2021	71.9	1037 of 4578	77.3%	★★★★☆
2019	64.0	1309 of 4479	70.8%	★★★★☆
2018	61.8	1401 of 4359	67.9%	★★★☆☆
2017	53.5	1782 of 4329	58.8%	★★★☆☆
2016	65.3	1500 of 4286	65.0%	★★★☆☆
2015	48.7	2404 of 4320	44.4%	★★☆☆☆
2014	55.5	2014 of 4260	52.7%	★★★☆☆
2013	55.7	1964 of 4221	53.5%	★★★☆☆
2012	59.8	1714 of 4206	59.2%	★★★☆☆
2011	69.8	1194 of 4095	70.8%	★★★★☆
2010	64.1	1509 of 3937	61.7%	★★★☆☆
2009	56.9	1876 of 3884	51.7%	★★★☆☆
2008	64.0	1416 of 3768	62.4%	★★★☆☆
2007	75.0	752 of 3724	79.8%	★★★★☆
2006	77.2	580 of 3476	83.3%	★★★★☆
2005	73.6	774 of 3475	77.7%	★★★★☆
2004	82.6	277 of 3465	92.0%	★★★★★

At Risk

Year	Avg score	Statewide rank	Texas percentile	Rating
2022	39.7	2840 of 4461	36.3%	★★☆☆☆
2021	44.4	2236 of 4331	48.4%	★★☆☆☆
2019	26.1	3644 of 4295	15.2%	★☆☆☆☆
2018	38.1	2794 of 4240	34.1%	★★☆☆☆

English Language Learner

Year	Avg score	Statewide rank	Texas percentile	Rating
2024	50.8	1619 of 3668	55.9%	★★★☆☆
2021	53.5	1296 of 3446	62.4%	★★★☆☆

Female

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	39.7	2796 of 4575	38.9%	★★☆☆☆
2025	65.3	1062 of 3744	71.6%	★★★★☆
2024	68.5	1150 of 4658	75.3%	★★★★☆
2023	61.4	1497 of 4588	67.4%	★★★☆☆
2022	70.5	1078 of 4561	76.4%	★★★★☆
2021	66.1	1221 of 4499	72.9%	★★★★☆
2019	67.7	1124 of 4348	74.1%	★★★★☆
2018	61.5	1402 of 4306	67.4%	★★★☆☆

Gifted and Talented

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	29.7	2684 of 3075	12.7%	★☆☆☆☆
2025	48.5	1735 of 2619	33.8%	★★☆☆☆
2023	39.2	2281 of 2980	23.5%	★☆☆☆☆
2022	48.8	1912 of 2958	35.4%	★★☆☆☆
2021	65.8	1149 of 3006	61.8%	★★★☆☆
2019	70.0	820 of 3184	74.2%	★★★★☆
2018	61.8	1405 of 3106	54.8%	★★★☆☆

Hispanic

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	31.3	3368 of 4413	23.7%	★☆☆☆☆
2025	41.3	2232 of 3644	38.7%	★★☆☆☆
2024	63.5	1263 of 4465	71.7%	★★★★☆
2023	60.9	1422 of 4401	67.7%	★★★☆☆
2022	55.1	1753 of 4376	59.9%	★★★☆☆
2021	43.2	2372 of 4329	45.2%	★★☆☆☆
2019	51.7	1866 of 4188	55.4%	★★★☆☆
2018	69.9	864 of 4168	79.3%	★★★★☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	34.1	3294 of 4520	27.1%	★☆☆☆☆
2025	62.3	1120 of 3705	69.8%	★★★☆☆
2024	62.1	1370 of 4594	70.2%	★★★★☆
2023	58.0	1647 of 4521	63.6%	★★★☆☆
2022	70.7	871 of 4477	80.5%	★★★★☆
2021	67.3	997 of 4451	77.6%	★★★★☆
2019	57.6	1527 of 4309	64.6%	★★★☆☆
2018	51.1	1954 of 4264	54.2%	★★★☆☆

Male

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	43.0	2550 of 4582	44.3%	★★☆☆☆
2025	67.8	998 of 3739	73.3%	★★★★☆
2024	64.0	1365 of 4647	70.6%	★★★★☆
2023	62.1	1473 of 4585	67.9%	★★★☆☆
2022	77.8	801 of 4563	82.4%	★★★★☆
2021	75.5	854 of 4498	81.0%	★★★★☆
2019	58.8	1516 of 4357	65.2%	★★★☆☆
2018	59.4	1517 of 4319	64.9%	★★★☆☆

Multi-racial

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	15.5	1032 of 1106	6.7%	☆☆☆☆☆
2025	32.9	751 of 975	23.0%	★☆☆☆☆
2024	34.0	843 of 1128	25.3%	★☆☆☆☆
2022	50.5	529 of 1004	47.3%	★★☆☆☆
2021	42.8	568 of 961	40.9%	★★☆☆☆
2018	10.7	988 of 1046	5.5%	☆☆☆☆☆

Special Education

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	38.4	2615 of 4301	39.2%	★★☆☆☆
2025	68.7	704 of 3549	80.2%	★★★★☆
2024	52.9	1711 of 4292	60.1%	★★★☆☆
2023	52.3	1505 of 4086	63.2%	★★★☆☆
2022	78.6	409 of 3952	89.7%	★★★★☆
2021	63.9	766 of 3799	79.8%	★★★★☆
2019	70.4	559 of 3684	84.8%	★★★★☆
2018	46.7	1598 of 3558	55.1%	★★★☆☆

White

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	30.4	2354 of 3006	21.7%	★☆☆☆☆
2025	54.7	1180 of 2612	54.8%	★★★☆☆
2024	47.1	1744 of 3108	43.9%	★★☆☆☆
2023	41.9	1950 of 3106	37.2%	★★☆☆☆
2022	60.8	1138 of 3082	63.1%	★★★☆☆
2021	54.9	1301 of 3082	57.8%	★★★☆☆
2019	45.3	1795 of 3142	42.9%	★★☆☆☆
2018	41.5	1921 of 3127	38.6%	★★☆☆☆

How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)

English Language Learner (2024)56th percentile-17 vs school

Male (2026)44th percentile~ school

Special Education (2026)39th percentile-4 vs school

Female (2026)39th percentile-4 vs school

At Risk (2022)36th percentile-44 vs school

Low Socio Economic Status (2026)27th percentile-16 vs school

Hispanic (2026)24th percentile-19 vs school

White (2026)22nd percentile-21 vs school

Gifted and Talented (2026)13th percentile-30 vs school

Multi-racial (2026)7th percentile-36 vs school

By subject vs Texas (2025-2026) ?

Reading50%-4 vs state

Mathematics39%-8 vs state

★

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Schools Near Mambrino School

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				STAAR Spanish Reading (2026)			STAAR Spanish Mathematics (2026)			STAAR Reading (2026)			STAAR Mathematics (2026)			Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	STAAR Spanish Reading 3rd Grade	STAAR Spanish Reading 4th Grade	STAAR Spanish Reading 5th Grade	STAAR Spanish Mathematics 3rd Grade	STAAR Spanish Mathematics 4th Grade	STAAR Spanish Mathematics 5th Grade	STAAR Reading 3rd Grade	STAAR Reading 4th Grade	STAAR Reading 5th Grade	STAAR Mathematics 3rd Grade	STAAR Mathematics 4th Grade	STAAR Mathematics 5th Grade	Total
Mambrino School	Public	PK, KG-5	3835 Mambrino Hwy	Granbury	76048	Hood County	Granbury Independent School District (Isd)	No	No	(n/a)	Yes	(817) 408-4900	799	50	15.9	45.7%	581 (72.7%)	7 (0.9%)	170 (21.3%)	6 (0.8%)	1 (0.1%)	2 (0.3%)	32 (4.0%)	41.3	2643^rd of 4627 public elementary schools	42.9%		65.8	1316^th of 4651 public elementary schools	71.7%	1327							36.0	51.3	61.7	33.6	35.8	49.2	$9,716
Acton Elementary	Public	PK, KG-5	3200 Acton Rd	Granbury	76049	Hood County	Granbury Independent School District (Isd)	No	No	(n/a)	Yes	(817) 408-4200	841	45	18.8	43.0%	595 (70.7%)	22 (2.6%)	179 (21.3%)	3 (0.4%)	3 (0.4%)	2 (0.2%)	37 (4.4%)	74.8	946^th of 4627 public elementary schools	79.6%		81.7	697^th of 4651 public elementary schools	85.0%	249							61.8	67.7	60.4	54.2	63.5	58.0	$8,520
Oak Woods School	Public	PK, KG-5	311 Davis Rd	Granbury	76049	Hood County	Granbury Independent School District (Isd)	No	No	(n/a)	Yes	(817) 408-4750	544	36	15.2	37.1%	387 (71.1%)	3 (0.6%)	127 (23.3%)	11 (2.0%)	2 (0.4%)	1 (0.2%)	13 (2.4%)	85.8	547^th of 4627 public elementary schools	88.2%		85.2	568^th of 4651 public elementary schools	87.8%	21							66.3	72.9	79.1	54.2	63.2	71.8	$8,988
John And Lynn Brawner Elementary	Public	PK, KG-5	1520 S Meadows	Granbury	76048	Hood County	Granbury Independent School District (Isd)	No	No	(n/a)	Yes	(817) 408-4950	751	51	14.8	66.7%	375 (49.9%)	5 (0.7%)	328 (43.7%)	12 (1.6%)	4 (0.5%)	2 (0.3%)	25 (3.3%)	63.7	1422^nd of 4627 public elementary schools	69.3%		56.9	1727^th of 4651 public elementary schools	62.9%	305	13.0	33.3	62.5		20.0	14.3	62.1	59.2	61.5	46.8	50.9	50.9	$8,121
Nettie Baccus Elementary	Public	PK, KG-5	901 Loop 567	Granbury	76048	Hood County	Granbury Independent School District (Isd)	No	No	(n/a)	Yes	(817) 408-4300	595	41	14.5	77.0%	294 (49.4%)	6 (1.0%)	276 (46.4%)	1 (0.2%)	4 (0.7%)	1 (0.2%)	13 (2.2%)	34	3152^nd of 4627 public elementary schools	31.9%		44	2493^rd of 4651 public elementary schools	46.4%	659	33.3	30.0		0.0			30.2	42.4	64.3	37.1	33.9	38.6	$11,775
Glen Rose Elementary	Public	PK, KG-2	601 Stadium Dr	Glen Rose	76043	Somervell County	Glen Rose Independent School District (Isd)	No	No	(n/a)	Yes	(254) 898-3500	499	34	14.5	47.5%	311 (62.3%)	3 (0.6%)	160 (32.1%)	4 (0.8%)	2 (0.4%)	3 (0.6%)	16 (3.2%)								(n/a)													$7,945
Glen Rose Intermediate	Public	3-5	201 Allen Ln	Glen Rose	76043	Somervell County	Glen Rose Independent School District (Isd)	No	No	(n/a)	No	(254) 898-3600	480	32	15.1	41.3%	329 (68.5%)	5 (1.0%)	122 (25.4%)	2 (0.4%)	3 (0.6%)	1 (0.2%)	18 (3.8%)	74.5	953^rd of 4627 public elementary schools	79.4%		77.5	860^th of 4651 public elementary schools	81.5%	93							58.6	66.9	63.9	54.9	55.8	64.9	$8,780
Tolar Elementary	Public	PK, KG-5	300 Hill City Hwy	Tolar	76476	Hood County	Tolar Independent School District (Isd)	No	No	(n/a)	Yes	(254) 835-4718	418	29	14.4	44.5%	365 (87.3%)	2 (0.5%)	34 (8.1%)	1 (0.2%)	3 (0.7%)	3 (0.7%)	10 (2.4%)	56.6	1779^th of 4627 public elementary schools	61.6%		40.9	2714^th of 4651 public elementary schools	41.6%	935							60.0	31.3	61.9	56.7	52.2	49.2	$6,200
Legacy Elementary	Public	PK, KG-5	311 N Pearson	Godley	76044	Johnson County	Godley Independent School District (Isd)	No	No	(n/a)	Yes	(817) 592-4380	502	34	14.8	30.9%	352 (70.1%)	23 (4.6%)	112 (22.3%)	1 (0.2%)	1 (0.2%)	0 (0.0%)	13 (2.6%)	58.2	1701^st of 4627 public elementary schools	63.2%		55.5	1806^th of 4651 public elementary schools	61.2%	105							49.5	61.0	51.2	47.3	61.6	44.1	$7,252
Rb Godley Elementary	Public	PK, KG-5	604 N Pearson	Godley	76044	Johnson County	Godley Independent School District (Isd)	No	(n/a)	(n/a)	(n/a)	(817) 592-4410	560	36	15.5	47.7%	298 (53.2%)	21 (3.8%)	221 (39.5%)	1 (0.2%)	3 (0.5%)	0 (0.0%)	16 (2.9%)	35.7	3035^th of 4627 public elementary schools	34.4%		50.2	2134^th of 4651 public elementary schools	54.1%	901							46.3	34.9	51.3	31.7	43.9	43.8	$8,320

Frequently Asked Questions about Mambrino School

What district is Mambrino School in?

Granbury Independent School District (Isd)

Is Mambrino School a good school?

Mambrino School ranks 2643^rd of 4627 Texas elementary schools. SchoolDigger rates this school 2 stars out of 5.

What schools do graduates of Mambrino School attend?

Students who attend Mambrino School usually go on to attend:

Middle : Granbury Middle
High : Granbury High School

How many students attend Mambrino School?

In the 2024-25 school year, 799 students attended Mambrino School.

What is the racial makeup of Mambrino School?

Students at Mambrino School are 73% White, 21% Hispanic, 4% Two or more races.

Rate Mambrino School!

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Latest Texas data All new data »

2025–26 STAAR, STAAR EOC & STAAR Spanish test scoresJun 12, 2026

2021–22 through 2023–24 school spending dataJan 10, 2026

2023–24 dropout rates & graduation ratesSep 17, 2025

2024–25 STAAR EOC & STAAR Spanish test scoresJun 23, 2025

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.