Enrollment
605
Washington · 2024-25 NCES data
Middle school (grades 6-8) · Seattle, WA
Dimmitt Middle School
Federal NCES profile for Dimmitt Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 37/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 530723002564
👥 S:T ratio 34
🌟 Gifted program 30
🎓 Counselors 60
📋 Attendance 23
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Dimmitt Middle School earns 37/100 on the Resource Investment Index, with class sizes near the Washington median. It is also more racially and ethnically mixed than most Washington schools.
- #6 of 6
- middle schools in Seattle · Resource Index
- 37
- Resource Index · Typical
- 16.4:1
- students per teacher
- 61.9%
- free-lunch eligible
Dimmitt Middle School has class sizes near the Washington median. Computed live against every Washington school reporting to NCES.
By Resource Investment Index, Dimmitt Middle School ranks #6 of 6 middle schools in Seattle, WA.
School address
District: Renton School District · Washington
NCES ID 530723002564 Verify on NCES CCD record →
Teachers (FTE)
37.0
Federal CCD staff survey
Students per teacher
16.4:1
vs 17.6:1 Washington avg
-7% vs state
Free-lunch eligible
61.9%
vs 45.0% Washington avg
+38% vs state
Student-teacher ratio in context
How Dimmitt Middle School compares with Washington and U.S. medians
What stands out at Dimmitt Middle School
Dimmitt Middle School is a higher-need, mid-sized middle school in Seattle, Washington, enrolling 605 students.
At 16.4:1, its student-teacher ratio sits close to the Washington median, within a few percentage points of the 17.6:1 state norm, neither notably crowded nor notably small.
Economic need runs somewhat above the state's typical profile, with 61.9% of students eligible for free meals.
Enrollment of 605 puts it in the larger third of Washington schools by headcount.
Its Resource Investment Index lands in the lower third of 2,394 scored Washington schools.
Among 361 similarly sized, similarly resourced-need Washington schools statewide, it ranks #275, in the lower tier once campus size and economic need are matched.
Its student body is led by Hispanic or Latino (28%) and Asian (26%), more mixed than most schools in the state (diversity index 78/100).
Counselor coverage is strong, about 202 students per counselor, inside the American School Counselor Association's recommended 250:1.
Chronic absenteeism is elevated: 30.7% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Discipline events run high: 193 in- and out-of-school suspensions were reported for 605 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 3 expulsions at this campus for 2021-22.
Among Seattle's middle schools, it stands alongside Jane Addams Middle School (824 students): Dimmitt Middle School is smaller than that campus by headcount and runs leaner classes (16.4:1 vs 17.2:1).
Renton School District also operates Hazen Senior High School (1,796 students) and Renton Senior High School (1,208 students) alongside Dimmitt Middle School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Dimmitt Middle School compares
Dimmitt Middle School on the metrics families compare, against Washington and U.S. means.
| Metric | This school | vs Washington | Washington avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.4:1 | ▼ 7% | 17.6:1 | 15.7:1 |
| Free-lunch eligible | 61.9% | ▲ 38% | 45.0% | 51.7% |
| Enrollment | 605 | top 20% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
16.4:1
Leaner classes than 35% of US schools, a middle-of-the-pack class size.
605
Bigger than 73% of US schools by enrollment, mid-sized for the country.
Equity indicators (what these measure)
Economic need
61.9%
free-lunch eligible
- 38% above the Washington average of 45.0%
Above the 40% Title I schoolwide threshold; federal funds support the whole school, not individual students.
Staffing depth
16.4:1
students per teacher
- 7% below state mean
Top 50% in Washington - lower ratio than 50% of state schools
Between 16:1 and 20:1, squarely in the typical U.S. public-school staffing range.
Engagement
30.7%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$17,639
per pupil, district-wide
- below Washington avg of $19,487
Somewhat above the U.S. public-school average, reflecting higher local or state investment per enrolled student.
Support staff
Counselors3.0 FTE
Per 202 students, the combined health-and-guidance staffing load for this school.
Discipline context
115
in-school suspensions + 78 out-of-school
Suspension rate: 19.0 per 100 students. Combined in-school and out-of-school rate: 31.9 per 100 students. Reported via the Civil Rights Data Collection. Includes 3 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
Hispanic or Latino 28.4%
Asian 26.0%
African American 23.3%
White 10.6%
Two or More 7.6%
Native Hawaiian / Pacific Islander 3.5%
American Indian / Alaska Native 0.7%
Largest group: Hispanic or Latino at 28.4% of enrollment.
Student-body diversity index 77.9/100
Simpson diversity index - at 77.9, Dimmitt Middle School is more mixed than the Washington school average of 53.3.
Programs
Funding & spending
District-wide per-pupil expenditure for Renton School District, which includes Dimmitt Middle School.
$17,639
Per student
-9%
vs Washington
Avg $19,487
+6%
vs U.S.
Avg $16,593
Revenue mix
Local 33.7%
State 56.5%
Federal 9.8%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
How Dimmitt Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Hazen Senior High School | Larger | Lower economic need | Higher S:T ratio |
| Renton Senior High School | Larger | Similar economic need | Higher S:T ratio |
| Lindbergh Senior High School | Larger | Lower economic need | Higher S:T ratio |
| Nelsen Middle School | Larger | Lower economic need | Higher S:T ratio |
| Mcknight Middle School | Larger | Lower economic need | Higher S:T ratio |
Comparisons are relative to Dimmitt Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,796
- Students per teacher
- 23:1
- Resource Index
- 23/100
- Enrollment
- 1,208
- Students per teacher
- 21.2:1
- Resource Index
- 28/100
- Enrollment
- 1,201
- Students per teacher
- 20.4:1
- Resource Index
- 34/100
- Enrollment
- 913
- Students per teacher
- 20.8:1
- Resource Index
- 30/100
- Enrollment
- 811
- Students per teacher
- 18.9:1
- Resource Index
- 35/100
Similar middle schools in Seattle
5 comparable middle schools (grades 6-8) serving the same city.
Jane Addams Middle School
Standard public school
824 students 17.2:1 students per teacher
Aki Kurose Middle School
Standard public school
817 students 17.4:1 students per teacher
Robert Eagle Staff Middle School
Standard public school
729 students 19.2:1 students per teacher
Cascade Middle School
Standard public school
671 students 15.6:1 students per teacher
Edmonds S. Meany Middle School
Standard public school
504 students 17.4:1 students per teacher
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Washington, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~605 students)
Similar student-teacher ratio (~16.4:1)
Next steps
Verify locally before acting on Dimmitt Middle School's federal record.
- Compare Dimmitt Middle School against another school. Compare schools
- Renton School District's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Dimmitt Middle School
How many students attend Dimmitt Middle School?
Dimmitt Middle School has 605 students enrolled. It is a middle school in Seattle, WA.
What is the student-teacher ratio at Dimmitt Middle School?
The student-teacher ratio at Dimmitt Middle School is 16.4:1, which is 7% lower than the Washington average of 17.6:1 and 4% higher than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Dimmitt Middle School?
61.9% of students at Dimmitt Middle School are eligible for free lunch, compared to the Washington average of 45.0%.
What is the racial and ethnic makeup of Dimmitt Middle School?
The largest demographic group at Dimmitt Middle School is Hispanic or Latino at 28.4% of enrollment, in Seattle, WA. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 77.9/100.
What is the Resource Investment Index for Dimmitt Middle School?
Dimmitt Middle School has a Resource Investment Index of 37/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Dimmitt Middle School rank among middle schools in Seattle?
By Resource Investment Index, Dimmitt Middle School ranks #6 of 6 middle schools in Seattle, WA. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Seattle on the city page.
Is Dimmitt Middle School a good school?
Dimmitt Middle School earns 37/100 on the Resource Investment Index, with class sizes near the Washington median. It is also more racially and ethnically mixed than most Washington schools. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Renton School District?
Besides Dimmitt Middle School, Renton School District also operates Hazen Senior High School (1,796 students), Renton Senior High School (1,208 students), and Lindbergh Senior High School (1,201 students). See the Renton School District district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.