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SCHOOL COMMUNITY·ZILLAH SCHOOL DISTRICT·NCES 531017001719

Zillah High School

1602 Second Avenue, Zillah, WA 98953 · (509) 829-5565 · Yakima County
GRADES 09–12HIGH42-RURALTITLE IREGULAR SCHOOL455 STUDENTS
A-
allk12 Grade
Scored higher than 84% of Washington public high schools
  • B-Test scores Share of students meeting the state standard in reading, math, and other tested subjects, 2023-24 and 2024-25.
  • ABeats expectations How far test scores land above or below what the share of low-income students predicts for a school in this state.
  • A+Three-year trend Change in reading and math proficiency over the last three test years.

Grades compare a school only with schools in the same state, because every state gives its own test. How grades work · Top-graded Washington public high schools

Enrollment
455
High
DISTRICT 333 · STATE 573
Student : Teacher
19.5:1
23 FTE teachers
DISTRICT 17.8:1 · STATE 21.6:1
Free / Reduced Lunch
65%
295 students
DISTRICT 68% · STATE 51%
Community
1
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.

Enrollment by grade, 2024-25

GradeStudentsShare
Grade 912628%
Grade 1011024%
Grade 119922%
Grade 1212026%
Student demographics
56%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 54% · STATE 68% · US 70%
White
16636%
DISTRICT 34% · STATE 47% · US 43%
Hispanic
25356%
DISTRICT 58% · STATE 27% · US 30%
Asian
31%
DISTRICT 0% · STATE 9% · US 6%
Two+
164%
DISTRICT 3% · STATE 9% · US 5%
Native American
174%
DISTRICT 5% · STATE 1% · US 1%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Male
24353%
Female
21247%

School pathway

Feeds from
Zillah Middle School06–08
Based on grade levels within Zillah School District. Attendance zones can vary; confirm enrollment with the district.

Discussions

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Test scores

Smarter Balanced + WCAS 2024-25 . % Met or Exceeded Standard
English Language Arts
67.0%
WA avg 58.4% . +29.7pp since 2014
Math
28.6%
WA avg 51.2% . +9.0pp since 2014

What this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 67 of every 100 students at this school read and write at grade level and about 29 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are up about 30 points since 2014, while math scores are up about 9 points.

Smarter Balanced + WCAS results by year

School yearEnglish Language ArtsMath
2024-2567.0%28.6%
2023-2451.6%26.4%
2022-2355.6%19.7%
2021-2238.0%10.7%
2018-1959.4%17.2%
2017-1872.3%37.6%
2016-1710.0%N/A
2014-1537.3%19.6%
% Met or Exceeded Standard, all students and all tested grades.
Source: Smarter Balanced + WCAS. All students, all grades. See all years and grades →

BeatsExpectations

Demographically-adjusted score · methodology
Tier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
44.3%
composite math + reading, all grades
Predicted
36.7%
based on WA schools with similar FRL share
Beats by
+7.6pp
above demographic expectation

What this means: About 44% of students here test proficient in math and reading, compared with the roughly 37% typical for Washington schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Washington's top nor bottom 10%.

BeatsExpectations runs a per-state regression of proficiency on free/reduced-lunch share, then scores each school by residual. How this is calculated →

Schools most like Zillah High School

SchoolStudentsLow-incomeProficient
Zillah High School this school45564.8%44.3%
Chelan High School
Chelan
43962.4%N/A
River View High School
KENNEWICK
32164.8%N/A
South Bend High School
South Bend
25870.5%37.2%
Prosser High School
Prosser
87762.3%N/A
Manson High School
MANSON
22061.8%N/A
Matched among Washington high schools on enrollment, the share of students from low-income families (eligible for free or reduced-price lunch), and racial and ethnic makeup. Proficient is the average share of students meeting the state standard across all of the school's state tests in 2023-24 and 2024-25, the same combined score our test-score rankings use. Online schools and schools serving specialized populations are not matched.

Where Zillah High School ranks

Among high schools
MeasureThis schoolIn WashingtonIn Yakima County
State test proficiency
ranked highest first
44.3%#128 of 271#4 of 16
Math proficiency
ranked highest first
28.6%#168 of 321
▲ 1
#5 of 16
no change
Reading proficiency
ranked highest first
67.0%#99 of 327
▲ 124
#5 of 16
▲ 2
3-year test score change
ranked biggest gain first
+23.4pp#1 of 259#1 of 15
Enrollment
ranked largest first
455#220 of 570#10 of 31
Students per teacher
ranked fewest first
19.5:1#106 of 311#6 of 15
Diversity index
ranked most diverse first
55.5%#153 of 316#2 of 15
Free and reduced lunch
ranked highest share first
64.8%#86 of 386#14 of 19
Enrollment change since 2017-18
ranked fastest growth first
+6.1%#93 of 136#7 of 10
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.

4-year change

SY 2020-21 vs SY 2024-25
Enrollment
455
+12 (+3%) vs 2020
+106% since 1990-91, when it was 221
Student : Teacher
19.5:1
was 21.1:1
Source: NCES Common Core of Data

Enrollment and staffing by year

School yearStudentsTeachers (FTE)Students per teacherFree and reduced lunch
2024-2545523.419.5:165% (295)
2023-2445020.522.0:175% (338)
2022-2342722.119.3:171% (303)
2020-214432121.1:153% (234)
2017-1842921.220.2:150% (216)
2015-164362120.8:148% (210)
2010-114072317.7:147% (190)
2000-013811920.1:1N/A
1990-912211317.0:1N/A
Source: NCES Common Core of Data. Rows are the federal collections on file for Zillah High School.

Since 2017-18: students up 6% (429 to 455); teachers up 10% (21.2 to 23.4).

About Zillah High School

Zillah High School is a public high school in Zillah, Washington. The school's enrollment of 455 students covers grades 9 through 12. Statewide, high schools in Washington average about 573 students each.

Zillah School District operates 4 schools. Combined enrollment is 1,330 students.

A majority of students at Zillah High School, 56%, are Hispanic. Next come 36% White, 4% Native American, and 4% multiracial. County-wide, about 52% of residents are Hispanic. The chance that two students picked at random at Zillah High School belong to different racial or ethnic groups, known as the diversity index, is 56%.

Zillah High School employs 23.4 full-time-equivalent teachers. That gives a ratio of about 19.5:1. The average ratio among high schools in Washington is 21.6:1, higher than at this school. Zillah High School's free or reduced-price lunch eligibility rate is 65%. The 77% average for public schools in Yakima County is 12 points higher.

Measured against Washington public high schools, Zillah High School receives an A-. The grade weighs proficiency most heavily, then how results compare with what the school's low-income share predicts, then the three-year change.

Schools in Washington with a similar free or reduced-price lunch share are predicted to score about 36.7%. Zillah High School scores 44.3%.

Among Yakima County residents, median household income is about $70,656, roughly 19% of adults have a four-year degree or more, and about 12% of residents live below the federal poverty line. Federal data list 119 public schools in Yakima County, with a combined enrollment of about 52,145.

Of nearby public schools, Zillah Intermediate School is the closest, at about 1.0 miles. The count of other public schools within five miles is at least 8. Its average proficiency rate of 44.3% is above the 29.2% average for nearby schools.

Zillah High School is in rural territory some distance from an urban area, a location NCES labels Rural: Distant.

From 2020-21 to 2024-25, Zillah High School went from 443 students to 455. Its ratio of students to teachers was 21.1:1 in 2020-21, and 19.5:1 in 2024-25.

Questions about science fairs, picture day, and bus routes can be posted here. Reviews and ratings from people who know the school are welcome.

Yakima County at a glance

View full county profile
Population
257,152
Census ACS
Median income
$70,656
Household, ACS
Bachelor's+
19%
Adults 25+
Poverty rate
12%
Below federal line
Schools in county
119
52,145 students

Quick facts

School name
Zillah High School
District
Zillah School District
Address
1602 Second Avenue, Zillah, WA 98953
Phone
(509) 829-5565
County
Yakima County
Level
High
Grade range
09–12
Total enrollment
455
Teachers (FTE)
23
Student–teacher ratio
19.5:1
Free and reduced lunch
295 (65%)
Locale
42-Rural: Distant
NCES ID
531017001719
Charter school
No
Virtual school
No

Related schools

Other schools in Zillah School District
Other schools in Zillah
Nearby schools

Frequently asked questions

About Zillah High School
What is the total enrollment at Zillah High School?
Zillah High School enrolls approximately 455 students in grades 09-12.
What age range does Zillah High School serve?
Zillah High School serves students from grade 09 through grade 12.
How many students per teacher at Zillah High School?
Approximately 19.5:1 students per teacher at Zillah High School.
How diverse is Zillah High School?
Zillah High School reports a student body of 36% White, 56% Hispanic, 1% Asian, 4% Two or more.
Is Zillah High School public or private?
Zillah High School is a public K-12 school, overseen by Zillah School District.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.
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