Serving 773 students in grades 9-12, Denison High School ranks in the bottom 50% of all schools in Iowa for overall test scores (math proficiency is bottom 50%, and reading proficiency is bottom 50%).
The percentage of students achieving proficiency in math is 61% (which is lower than the Iowa state average of 64%). The percentage of students achieving proficiency in reading/language arts is 71% (which is higher than the Iowa state average of 70%).
The student:teacher ratio of 18:1 is higher than the Iowa state level of 14:1.
Minority enrollment is 68% of the student body (majority Hispanic), which is higher than the Iowa state average of 29% (majority Hispanic).
Quick Stats (2025)
Grades: 9-12
Enrollment: 773 students
Student:Teacher Ratio: 18:1
Minority Enrollment: 68%
Graduation Rate
: 90-94% (Top 30% in IA)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 61% (Btm 50%)
Reading Proficiency
: 71% (Btm 50%)
Science Proficiency
: 55-59% (Btm 50%)
Source: National Center for Education Statistics (NCES), IA Dept. of Education
Denison High School ranks within the bottom 50% of all 1,233 schools in Iowa (based off of combined math and reading proficiency testing data).
The diversity score of Denison High School is 0.52, which is more than the diversity score at state average of 0.47. The school's diversity has stayed relatively flat over five school years.
Denison High School is ranked #802 out of 1,233 schools, which ranks it among the bottom 50% of public schools in Iowa.
What percent of students have achieved state testing proficiency in math and reading?
61% of students have achieved math proficiency (compared to the 64% IA state average), while 71% of students have achieved reading proficiency (compared to the 70% IA state average).
What is the graduation rate of Denison High School?
The graduation rate of Denison High School is 90-94%, which is higher than the Iowa state average of 90%.
How many students attend Denison High School?
773 students attend Denison High School.
What is the racial composition of the student body?
62% of Denison High School students are Hispanic, 32% of students are White, 3% of students are Black, 2% of students are Asian, and 1% of students are Two or more races.
What is the student:teacher ratio of Denison High School?
Denison High School has a student ration of 18:1, which is higher than the Iowa state average of 14:1.
What grades does Denison High School offer ?
Denison High School offers enrollment in grades 9-12 (offers virtual instruction).
What school district is Denison High School part of?
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Quick Stats (2025)
Grades: 9-12
Enrollment: 773 students
Student:Teacher Ratio: 18:1
Minority Enrollment: 68%
Graduation Rate
: 90-94% (Top 30%)
Overall Testing Rank
: Bottom 50%
Math Proficiency
: 61% (Btm 50%)
Reading Proficiency
: 71% (Btm 50%)
Science Proficiency
: 55-59% (Btm 50%)
Source: National Center for Education Statistics (NCES), IA Dept. of Education
