Enrollment
47
High
DISTRICT 831 · STATE 573
SCHOOL COMMUNITY·SEATTLE SCHOOL DISTRICT NO. 1·NCES 530771002928
Interagency Detention School
1211 E ALDER MS 1-F, SEATTLE, WA 98122 · (206) 205-9422 · King County
GRADES 06–12HIGH11-CITYREGULAR SCHOOL47 STUDENTS
Student : Teacher
,
0 FTE teachers
DISTRICT 17.6:1 · STATE 21.6:1
Free / Reduced Lunch
28%
13 students
DISTRICT 36% · STATE 51%
Community
0
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
| Grade | Students | Share |
|---|---|---|
| Grade 7 | 3 | 6% |
| Grade 8 | 4 | 9% |
| Grade 9 | 1 | 2% |
| Grade 10 | 13 | 28% |
| Grade 11 | 15 | 32% |
| Grade 12 | 11 | 23% |
Student demographics
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
QUIET COMMUNITY
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START A DISCUSSIONTest scores
Smarter Balanced + WCAS 2017-18 . % Met or Exceeded StandardEnglish Language Arts
27.3%
own-school result
State assessment results for this school reflect a specialized student population. The figures above are the school's own reported scores; they are not directly comparable to state averages or to general-enrollment schools, so the usual state-average comparison line is suppressed here.
Smarter Balanced + WCAS results by year
| School year | English Language Arts |
|---|---|
| 2017-18 | 27.3% |
| 2016-17 | 18.2% |
| 2015-16 | 12.5% |
% Met or Exceeded Standard, all students and all tested grades.
Source: Smarter Balanced + WCAS. All students, all grades. See all years and grades →
BeatsExpectations
Not computed for this schoolBeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →
Where Interagency Detention School ranks
Among high schools| Measure | This school | In Washington | In King County |
|---|---|---|---|
| Enrollment ranked largest first | 47 | #452 of 570 | #90 of 97 |
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 2024-25Enrollment
47
+31 (+194%) vs 2020
-43% since 2010-11, when it was 82
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 47 | N/A | N/A | 28% (13) |
| 2023-24 | 30 | N/A | N/A | 50% (15) |
| 2022-23 | 17 | N/A | N/A | 59% (10) |
| 2020-21 | 16 | N/A | N/A | 69% (11) |
| 2017-18 | 29 | N/A | N/A | 28% (8) |
| 2015-16 | 64 | N/A | N/A | 9% (6) |
| 2010-11 | 82 | N/A | N/A | 0% (0) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Interagency Detention School.
About Interagency Detention School
Interagency Detention School is classified as a high school. It is located in SEATTLE, Washington. Federal data show 47 students enrolled in grades 6 through 12 in 2024-25. Across high schools in Washington, the average enrollment is about 573.
Seattle School District No. 1 oversees Interagency Detention School and 106 other schools, with 50,773 students in total.
The largest group at Interagency Detention School is Black students, at 55%. Other groups include 23% Hispanic, 19% White, and 2% multiracial. By comparison, King County residents are about 7% Black.
Eligibility for free or reduced-price lunch, often used to gauge student poverty, is 28%. Across public schools in King County, the average is 38%.
In the wider King County area, median household income comes to about $124,746, 57% of adults hold a bachelor's degree or higher, and about 5% of residents live below the federal poverty line. King County counts 544 public schools with about 278,492 students.
Among nearby public schools, Bailey Gatzert Elementary School is closest at about 0.2 miles. The count of other public schools within five miles is at least 8.
For locale, NCES codes Interagency Detention School as City: Large.
The school counted 16 students in 2020-21 and 47 in 2024-25. A shift in the grades offered could account for part of the difference.
You can use this page to share news and ask questions about open houses, carpools, and field trips. You can also rate the school on this page.
King County at a glance
View full county profilePopulation
2,287,171
Census ACS
Median income
$124,746
Household, ACS
Bachelor's+
57%
Adults 25+
Poverty rate
5%
Below federal line
Schools in county
544
278,492 students
Quick facts
Related schools
Other schools in Seattle School District No. 1
- Lincoln High SchoolHigh · 1,770 students
- Ballard High SchoolHigh · 1,697 students
- Roosevelt High SchoolHigh · 1,542 students
- Garfield High SchoolHigh · 1,507 students
- West Seattle High SchoolHigh · 1,479 students
- Ingraham High SchoolHigh · 1,391 students
Other schools in SEATTLE
- Lincoln High SchoolHigh · 1,770 students
- Ballard High SchoolHigh · 1,697 students
- Roosevelt High SchoolHigh · 1,542 students
- Garfield High SchoolHigh · 1,507 students
- West Seattle High SchoolHigh · 1,479 students
- Ingraham High SchoolHigh · 1,391 students
Nearby schools
- Bailey Gatzert Elementary School0.2 mi · 402
- Summit Public School: Sierra0.4 mi · 214
- Garfield High School0.7 mi · 1,507
- Washington Middle School0.7 mi · 566
- Seattle World School0.7 mi · 218
- Nova High School0.8 mi · 256
Frequently asked questions
About Interagency Detention SchoolHow large is Interagency Detention School?
Interagency Detention School enrolls approximately 47 students in grades 06-12.
What grades does Interagency Detention School serve?
Interagency Detention School serves grades 06-12.
How many teachers does Interagency Detention School have?
Interagency Detention School employs 0 FTE teachers.
What is the student diversity at Interagency Detention School?
Student demographics at Interagency Detention School are roughly 19% White, 23% Hispanic, 55% Black, 2% Two or more.
What district is Interagency Detention School in?
Interagency Detention School is part of Seattle School District No. 1.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.