Dr. John D. Horn High School is a secondary school in Mesquite, Texas, United States. The school serves the southern portion of Mesquite and the Mesquite ISD portion of Seagoville. John Horn High School, which serves grades 9 through 12, is a part of the Mesquite Independent School District.
Serving 2,874 students in grades 9-12, Horn High School ranks in the bottom 50% of all schools in Texas for overall test scores (math proficiency is top 50%, and reading proficiency is top 50%).
The percentage of students achieving proficiency in math is 48% (which is higher than the Texas state average of 44%). The percentage of students achieving proficiency in reading/language arts is 35% (which is lower than the Texas state average of 51%).
The student-teacher ratio of 16:1 is higher than the Texas state level of 14:1.
Minority enrollment is 94% of the student body (majority Hispanic), which is higher than the Texas state average of 75% (majority Hispanic).
Quick Facts (2026)
- Grades: 9-12
- Enrollment: 2,874 students
- Student-Teacher Ratio: 16:1
- Minority Enrollment: 94%
- Graduation Rate: 90% (Btm 50% in TX)
- Overall Testing Rank: Bottom 50%
- Math Proficiency: 48% (Top 50%)
- Reading Proficiency: 35% (Btm 50%)
- Science Proficiency: 50% (Top 50%)
- Source: National Center for Education Statistics (NCES), TX Dept. of Education
School Overview
Horn High School's student population of 2,874 students has declined by 7% over five school years.
The teacher population of 185 teachers has stayed relatively flat over five school years.
Grades Offered
Grades 9-12
Total Students
2,874 students
Gender %
Total Classroom Teachers
185 teachers
Year Founded
2000
Colors
White, Black, Red
School Calendar
Campus Size
50 acres
School Motto
Excellence Happens Here
School Rankings
Horn High School ranks within the bottom 50% of all 8,096 schools in Texas (based off of combined math and reading proficiency testing data).
The diversity score of Horn High School is 0.58, 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.
Overall Testing Rank
#4967 out of 8096 schools
(Bottom 50%)
(Bottom 50%)
Math Test Scores (% Proficient)
48%
44%
Reading/Language Arts Test Scores (% Proficient)
35%
51%
Science Test Scores (% Proficient)
50%
46%
Student-Teacher Ratio
16:1
14:1
American Indian
n/a
n/a
Asian
1%
6%
Hispanic
50%
53%
Black
41%
13%
White
6%
25%
Hawaiian
n/a
n/a
Two or more races
2%
3%
All Ethnic Groups
Graduation Rate
90%
90%
Participates in the National School Lunch Program (NSLP)
Yes
Eligible for Free Lunch
74%
57%
Eligible for Reduced Lunch
3%
5%
School Statewide Testing
School District Name
Source: National Center for Education Statistics (NCES), TX Dept. of Education
School Notes
- School Mascot: Jaguar
Frequently Asked Questions
What is Horn High School's ranking?
Horn High School is ranked #4967 out of 8,096 schools, which ranks it among the bottom 50% of public schools in Texas.
What schools are Horn High School often compared to?
Horn High Schoolis often viewed alongside schools like Duncanville High School by visitors of our site.
What percent of students have achieved state testing proficiency in math and reading?
48% of students have achieved math proficiency (compared to the 44% TX state average), while 35% of students have achieved reading proficiency (compared to the 51% TX state average).
What is the graduation rate of Horn High School?
The graduation rate of Horn High School is 90%, which is equal to the Texas state average of 90%.
How many students attend Horn High School?
2,874 students attend Horn High School.
What is the racial composition of the student body?
50% of Horn High School students are Hispanic, 41% of students are Black, 6% of students are White, 2% of students are Two or more races, and 1% of students are Asian.
What is the student-teacher ratio of Horn High School?
Horn High School has a student ration of 16:1, which is higher than the Texas state average of 14:1.
What grades does Horn High School offer ?
Horn High School offers enrollment in grades 9-12
What school district is Horn High School part of?
Horn High School is part of Mesquite Independent School District.
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