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Grulla High School

Public Grades 8-12

1652^nd

SchoolDigger Rank ?

of 2,009 Texas High Schools

Better than 18% of Texas high schools

Summary

Grulla High School in Rio Grande City, TX, serves 716 students in grades 8-12 and is part of the Rio Grande City Grulla Independent School District (Isd). The school stands out for a remarkable paradox: it achieves a near-perfect 99.5% graduation rate and a 0% dropout rate for three consecutive years, yet consistently struggles with academic proficiency, earning a 1-star rating from Schooldigger. This means the school excels at keeping students on track to graduate, but many may not reach grade-level mastery in core subjects like reading and math.

Academically, Grulla shows volatile performance in Algebra I, with proficiency rates swinging from 76% to 36% and back to 74% in recent years, suggesting results depend heavily on the specific group of students. In contrast, English I and II reading scores remain persistently low, hovering between 23-37% proficiency—well below district and state averages. The school spends $14,515 per student, notably higher than nearby Rio Grande City High School ($11,448), but this investment hasn't translated into higher test scores. Compared to La Joya High School, which has a 90.4% graduation rate and 2.2% dropout rate, Grulla's retention is exceptional, but its academic outcomes are similar.

An interesting dynamic is the "early college effect" within the district. High-performing magnet schools like Preparatory For Early College High School (4 stars) and nearby Thelma Rosa Salinas Stem Early College High School (5 stars) attract motivated students, leaving comprehensive schools like Grulla to serve the general population. Grulla's migrant student program was a standout strength in 2024-2025 (75th percentile), but recent data shows a sharp decline. Additionally, support for special education and gifted students has dropped dramatically, signaling areas needing urgent attention. For parents, Grulla offers a strong safety net for graduation but may require extra academic support at home.

716

Students ?

13.2

Student/teacher ratio ?

$10,198

Per pupil spending ?

96.8%

Free/discounted lunch ?

6884 E Hwy 83
Rio Grande City, TX 78582-4799

(956) 370-4294

District: Rio Grande City Grulla Independent School District (Isd)

Feeder schools for Grulla High School:

Elementary:	Alto Bonito Elementary
	Grulla Elementary
Middle:	Grulla Middle

Racial breakdown:

Hispanic:

99.9%

White:

0.1%

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Compare Grulla High School to nearby high schools!

At a glance

▼ Ranking trend: Declining — 35th percentile in 2016 → 18th in 2026

Strengths

✓100% graduate within 4 years

Worth a look

!Test scores below the Texas average (40% vs 62% meeting standards)

!In the lower quartile statewide (18th percentile)

!Ranking has slipped — down 17 percentile points since 2016

Students meeting standards (2025-2026) ?

This school40%

District avg50%

Texas avg62%

1,652^nd of 2,009

Texas public high schools ?

Bottom 18%▼ down 17 pts since 2016

From bottom 35% (2016) to bottom 18% (2026)

See the entire ranking list of Texas High Schools →

★★★★★

SchoolDigger rating ?

3^rd of 3High Schools in the Rio Grande City Grulla Independent School District (Isd)

375^th of 951Rio Grande City Grulla 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	19.8	1652 of 2009	17.8%	★☆☆☆☆
2025	29.9	1400 of 1974	29.1%	★☆☆☆☆
2024	20.7	1611 of 1990	19.0%	★☆☆☆☆
2023	31.9	1351 of 1961	31.1%	★★☆☆☆
2022	24.8	1447 of 1876	22.9%	★☆☆☆☆
2021	17.5	1561 of 1861	16.1%	★☆☆☆☆
2019	33.8	1267 of 1857	31.8%	★★☆☆☆
2018	18.1	1505 of 1797	16.2%	★☆☆☆☆
2017	18.0	1479 of 1777	16.8%	★☆☆☆☆
2016	42.4	1143 of 1762	35.1%	★★☆☆☆
2015	44.4	1093 of 1743	37.3%	★★☆☆☆
2014	26.5	1395 of 1734	19.6%	★☆☆☆☆
2013	35.3	1199 of 1652	27.4%	★☆☆☆☆
2012	36.3	1182 of 1603	26.3%	★☆☆☆☆
2011	43.1	1249 of 1672	25.3%	★☆☆☆☆

At Risk

Year	Avg score	Statewide rank	Texas percentile	Rating
2021	27.0	1394 of 1829	23.8%	★☆☆☆☆
2019	44.1	909 of 1810	49.8%	★★☆☆☆
2018	19.4	1607 of 1784	9.9%	☆☆☆☆☆

English Language Learner

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	28.0	922 of 1195	22.8%	★☆☆☆☆
2025	48.2	415 of 1153	64.0%	★★★☆☆
2024	40.9	701 of 1437	51.2%	★★★☆☆
2023	54.5	408 of 1371	70.2%	★★★★☆
2022	54.0	372 of 1278	70.9%	★★★★☆
2021	44.7	529 of 1195	55.7%	★★★☆☆
2019	64.8	231 of 1136	79.7%	★★★★☆
2018	37.8	599 of 1113	46.2%	★★☆☆☆

Female

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	20.4	1604 of 1936	17.1%	★☆☆☆☆
2025	29.6	1071 of 1504	28.8%	★☆☆☆☆
2024	26.0	1403 of 1880	25.4%	★☆☆☆☆
2023	30.0	1336 of 1891	29.3%	★☆☆☆☆
2022	25.4	1416 of 1841	23.1%	★☆☆☆☆
2021	19.8	1491 of 1815	17.9%	★☆☆☆☆
2019	31.4	1324 of 1798	26.4%	★☆☆☆☆
2018	18.5	1535 of 1781	13.8%	★☆☆☆☆

Gifted and Talented

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	15.8	1130 of 1206	6.3%	☆☆☆☆☆
2025	22.8	845 of 964	12.3%	★☆☆☆☆
2023	17.2	1069 of 1182	9.6%	☆☆☆☆☆
2022	8.5	1113 of 1172	5.0%	☆☆☆☆☆
2021	6.6	1128 of 1177	4.2%	☆☆☆☆☆
2019	21.4	1046 of 1145	8.6%	☆☆☆☆☆
2018	4.2	1111 of 1137	2.3%	☆☆☆☆☆

Hispanic

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	22.7	1509 of 1860	18.9%	★☆☆☆☆
2025	35.2	898 of 1453	38.2%	★★☆☆☆
2024	26.8	1330 of 1805	26.3%	★☆☆☆☆
2023	35.7	1160 of 1820	36.3%	★★☆☆☆
2022	28.3	1290 of 1762	26.8%	★☆☆☆☆
2021	21.0	1434 of 1743	17.7%	★☆☆☆☆
2019	37.9	1085 of 1714	36.7%	★★☆☆☆
2018	21.8	1430 of 1691	15.4%	★☆☆☆☆

Low Socio Economic Status

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	25.5	1528 of 1937	21.1%	★☆☆☆☆
2025	37.3	903 of 1513	40.3%	★★☆☆☆
2024	28.7	1379 of 1884	26.8%	★☆☆☆☆
2023	35.7	1234 of 1897	34.9%	★★☆☆☆
2022	31.5	1309 of 1847	29.1%	★☆☆☆☆
2021	23.4	1487 of 1848	19.5%	★☆☆☆☆
2019	39.3	1128 of 1818	38.0%	★★☆☆☆
2018	23.4	1508 of 1794	15.9%	★☆☆☆☆

Male

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	16.7	1655 of 1954	15.3%	★☆☆☆☆
2025	31.4	1011 of 1515	33.3%	★★☆☆☆
2024	18.7	1561 of 1891	17.5%	★☆☆☆☆
2023	31.9	1292 of 1913	32.5%	★★☆☆☆
2022	23.4	1427 of 1853	23.0%	★☆☆☆☆
2021	16.3	1573 of 1840	14.5%	★☆☆☆☆
2019	33.2	1243 of 1824	31.9%	★★☆☆☆
2018	16.6	1584 of 1803	12.1%	★☆☆☆☆

Migrant

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	29.2	60 of 74	18.9%	★☆☆☆☆
2025	65.6	20 of 81	75.3%	★★★★☆
2024	44.6	47 of 95	50.5%	★★★☆☆
2023	51.6	39 of 93	58.1%	★★★☆☆
2022	51.1	52 of 114	54.4%	★★★☆☆
2021	48.5	45 of 97	53.6%	★★★☆☆
2019	60.7	37 of 113	67.3%	★★★☆☆
2018	44.9	74 of 131	43.5%	★★☆☆☆

Special Education

Year	Avg score	Statewide rank	Texas percentile	Rating
2026	14.8	1491 of 1581	5.7%	☆☆☆☆☆
2025	42.4	687 of 1299	47.1%	★★☆☆☆
2024	34.3	1051 of 1548	32.1%	★★☆☆☆
2023	46.1	662 of 1478	55.2%	★★★☆☆
2022	44.9	647 of 1418	54.4%	★★★☆☆
2021	27.9	1096 of 1382	20.7%	★☆☆☆☆
2019	28.6	1058 of 1357	22.0%	★☆☆☆☆
2018	20.7	1249 of 1347	7.3%	☆☆☆☆☆

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)

At Risk (2021)24th percentile+8 vs school

English Language Learner (2026)23rd percentile+5 vs school

Low Socio Economic Status (2026)21st percentile+3 vs school

Migrant (2026)19th percentile~ school

Hispanic (2026)19th percentile~ school

Female (2026)17th percentile~ school

Male (2026)15th percentile~ school

Gifted and Talented (2026)6th percentile-11 vs school

Special Education (2026)6th percentile-12 vs school

By subject vs Texas (2025-2026) ?

U.S. History51%-19 vs state

Algebra I46%-8 vs state

Biology44%-26 vs state

English II Reading32%-28 vs state

English I Reading30%-25 vs state

★

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Schools Near Grulla High 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 EOC Algebra I (2026)	STAAR EOC Biology (2026)	STAAR EOC English I Reading (2026)	STAAR EOC English II Reading (2026)	STAAR EOC U.S. History (2026)	STAAR Reading (2026)			STAAR Mathematics (2026)		STAAR Social Studies (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 EOC Algebra I End of Course	STAAR EOC Biology End of Course	STAAR EOC English I Reading End of Course	STAAR EOC English II Reading End of Course	STAAR EOC U.S. History End of Course	STAAR Reading 6th Grade	STAAR Reading 7th Grade	STAAR Reading 8th Grade	STAAR Mathematics 6th Grade	STAAR Mathematics 7th Grade	STAAR Social Studies 8th Grade	Total
Grulla High School	Public	8-12	6884 E Hwy 83	Rio Grande City	78582	Starr County	Rio Grande City Grulla Independent School District (Isd)	No	No	(n/a)	Yes	(956) 370-4294	716	54	13.2	96.8%	1 (0.1%)	0 (0.0%)	715 (99.9%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	19.8	1652^nd of 2009 public high schools	17.8%		29.9	1400^th of 1974 public high schools	29.1%	252	46.2	44.4	30.2	32.3	51.2							$10,198
Rio Grande City High School	Public	9-12	5726 Fm 755	Rio Grande City	78582	Starr County	Rio Grande City Grulla Independent School District (Isd)	No	No	(n/a)	Yes	(956) 488-6000	1,670	122	13.6	96.2%	0 (0.0%)	0 (0.0%)	1,665 (99.7%)	3 (0.2%)	1 (0.1%)	0 (0.0%)	1 (0.1%)	28.7	1507^th of 2009 public high schools	25.0%		25.5	1505^th of 1974 public high schools	23.8%	2	43.9	53.8	37.1	42.8	60.8							$9,621
Preparatory For Early College High School	Public	9-12	144 Fm 3167	Rio Grande City	78582	Starr County	Rio Grande City Grulla Independent School District (Isd)	No	No	(n/a)	Yes	(956) 370-4254	430	35	12.3	98.6%	0 (0.0%)	0 (0.0%)	427 (99.3%)	3 (0.7%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	75.8	304^th of 2009 public high schools	84.9%		72.9	347^th of 1974 public high schools	82.4%	43	63.6	84.0	79.7	77.5	80.0							$6,632
Hope Academy	Public	6-12	101 E Expy 83	La Joya	78560	Hidalgo County	La Joya Independent School District (Isd)	No	No	(n/a)	Yes	(956) 323-2900	78	10	7.7	91.0%	0 (0.0%)	0 (0.0%)	78 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)								(n/a)												$27,090
Thelma Rosa Salinas Stem Early College High School	Public	9-12	801 N College Dr	La Joya	78560	Hidalgo County	La Joya Independent School District (Isd)	No	No	(n/a)	Yes	(956) 323-2240	471	32	14.8	93.8%	0 (0.0%)	0 (0.0%)	471 (100.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	88.3	79^th of 2009 public high schools	96.1%		85.5	132^nd of 1974 public high schools	93.3%	53					89.1							$8,834
Jimmy Carter Early College High School	Public	9-12	603 N College Dr	La Joya	78560	Hidalgo County	La Joya Independent School District (Isd)	No	No	(n/a)	Yes	(956) 323-2200	327	28	11.7	85.9%	1 (0.3%)	0 (0.0%)	324 (99.1%)	2 (0.6%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	84.4	132^nd of 2009 public high schools	93.4%		81	210^th of 1974 public high schools	89.4%	78	55.9	88.2	86.6	90.5	90.8							$9,863
La Joya High School	Public	9-12	604 N Coyote Blvd	La Joya	78560	Hidalgo County	La Joya Independent School District (Isd)	No	No	(n/a)	Yes	(956) 323-2330	2,405	164	14.6	93.1%	4 (0.2%)	1 (0.0%)	2,397 (99.7%)	1 (0.0%)	0 (0.0%)	0 (0.0%)	2 (0.1%)	18.3	1673^rd of 2009 public high schools	16.7%		16	1678^th of 1974 public high schools	15.0%	5	33.8	51.1	31.7	32.3	48.5							$10,441
Idea Rio Grande City College Preparatory	Public, Charter	6-12	2803 W Monarch Ln	Rio Grande City	78582	Starr County	Idea Public Schools	Yes	No	(n/a)	Yes	(956) 263-4900	695	45	15.5	90.1%	22 (3.2%)	1 (0.1%)	668 (96.1%)	2 (0.3%)	2 (0.3%)	0 (0.0%)	0 (0.0%)	43.1	1147^th of 2009 public high schools	42.9%		49.9	909^th of 1974 public high schools	54.0%	238	52.5	64.0	47.1	58.8	64.4	53.9	60.0	61.1	40.0	42.5	37.6	$12,091
Juarez-Lincoln High School	Public	9-12	7801 W Mile 7 Rd	Mission	78574	Hidalgo County	La Joya Independent School District (Isd)	No	No	(n/a)	Yes	(956) 323-2890	1,952	142	13.7	98.0%	1 (0.1%)	0 (0.0%)	1,951 (99.9%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	19	1660^th of 2009 public high schools	17.4%		20.4	1606^th of 1974 public high schools	18.6%	54	41.9	48.2	31.0	33.9	47.9							$10,396
Premier H S Of Palmview	Public, Charter	9-12	406 W Veterans Blvd	Palmview	78572	Hidalgo County	Premier High Schools	Yes	No	(n/a)	Yes	(956) 584-8458	108	7	16.1	99.1%	2 (1.9%)	0 (0.0%)	106 (98.1%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	5.8	1867^th of 2009 public high schools	7.1%		33.3	1317^th of 1974 public high schools	33.3%	550	14.3		0.0	25.0	34.5							$11,627

Frequently Asked Questions about Grulla High School

What is the racial makeup of Grulla High School?

Students at Grulla High School are 100% Hispanic.

What schools feed into Grulla High School?

Grulla High School is fed by the following schools:

Elementary : Alto Bonito Elementary
Elementary : Grulla Elementary
Middle : Grulla Middle

What district is Grulla High School in?

Rio Grande City Grulla Independent School District (Isd)

Is Grulla High School a good school?

Grulla High School ranks in the bottom 17.8% of Texas high schools.

How many students attend Grulla High School?

In the 2024-25 school year, 716 students attended Grulla High School.

Rate Grulla High 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.