Mercer Island School District 400
Listed by NCES as Mercer Island School District (district ID 5304980)
Public school district · King County · Washington · NCES district ID 5304980
Mercer Island School District 400 spent $17,288 per student on current operations in fiscal year 2022-23, more than 51% of the other Washington districts with at least 1,000 students in fall 2022 (median $17,250). Its 6 schools enrolled 3,993 students in 2024-25; 58.0% of its revenue came from the state. Census Bureau figures for 2023-24 put it at $19,351 per student, up 11.9% on the year before (U.S. $17,619 that year). Its four-year graduation rate for the class of 2023 was 94% (Washington: 83.8%).
NCES F-33 finance survey, fiscal year 2022-23 · Census Bureau school finances 2023-24 · NCES Common Core of Data 2024-25 · method
Spending per student among Washington districts of similar size
Current spending per student excludes construction and debt. The 9 districts closest to Mercer Island School District 400 in enrollment (3,618 to 4,436 students) and Mercer Island School District 400 itself.
Where the money came from
$89,160,000 in revenue: 58.0% state, 39.5% local and 2.5% federal. Total spending including $10,330,000 of capital outlay was $83,963,000, or $20,696 per student; the figure above leaves capital out.
- State$51,719,000 58%
- Local$35,223,000 40%
- Federal$2,218,000 2%
Source: NCES F-33 school district finance survey, fiscal year 2022-23: current expenditures for elementary and secondary education divided by fall membership; the state median covers 150 districts with at least 1,000 students in fall 2022. Revenue by source (TOTALREV, TFEDREV, TSTREV, TLOCREV).
Enrollment fell from 2022-23 to 2024-25
4,057 students in 2022-23, 3,975 students in 2023-24, 3,993 students in 2024-25, counted across the schools that reported each year.
Teachers and students per teacher
| School year | Students | Teachers (FTE) | Per teacher |
|---|---|---|---|
| 2022-23 | 4,057 | 215.3 | 18.8 |
| 2023-24 | 3,975 | 215.8 | 18.4 |
| 2024-25 | 3,993 | 221.8 | 18.0 |
Source: NCES Common Core of Data membership and staff files, 2022-23, 2023-24, 2024-25; sums over the schools reporting each year.
$22,465,000 in teacher salaries in fiscal year 2022-23, $5,537 per student
Mercer Island School District 400 booked $22,465,000 of teacher salaries in its 2022-23 finance report and counted 215 full-time teachers in its Common Core of Data district staff file for 2022-23 (the school files behind the staffing figures on this page count teachers separately, so the two can differ), or $104,352 of salary spending per teacher. That is more than 90 in 100 Washington districts with a figure (state median $84,529, 290 districts). It is spending, not what a teacher is paid: the salary lines and the teacher count come from different files, so the result can differ widely from the average salary the district publishes (its salary schedule gives pay); benefits are left out, and states book salaries differently, so compare districts within one state. For pay, the National Education Association put the average Washington teacher salary at $81,586 in 2021-22 (NCES Digest table 211.60).
| Program | Teacher salaries | Share |
|---|---|---|
| Regular programs | $18,154,000 | 80.8% |
| Special education | $2,004,000 | 8.9% |
| Vocational | $1,584,000 | 7.1% |
| Other programs | $723,000 | 3.2% |
Teacher salaries per student, fiscal years 2018-19 to 2022-23
The district's teacher salary bill divided by its fall enrollment each year: $5,005 in 2018-19, $5,062 in 2019-20, $5,440 in 2020-21, $5,157 in 2021-22, $5,537 in 2022-23.
Source: NCES F-33 school district finance survey, fiscal years 2019 to 2023: teacher salaries in regular, special, vocational and other programs (Z35 to Z38) and fall membership (V33); NCES Common Core of Data LEA staff file 2022-23, teachers (full-time equivalent).
State test results, 2021-22
In 2021-22, the students tested in Mercer Island School District 400 scored proficient or above: 85% in reading and 78-81% in math, against 53.4% in reading and 41% in math across Washington. Each state writes its own test and sets its own proficiency bar, so compare these within Washington, not across states. Where a state published results by grade only, the grades tested are combined, weighted by the students tested in each.
| Subject | This district | Washington | Students tested |
|---|---|---|---|
| Reading and language arts | 85% | 53.4% | 2,123 |
| Math | 78-81% | 41% | 1,766 |
Source: U.S. Department of Education, EDFacts state assessment results 2021-22, all students, from ED Data Express (the Data Rescue Project archive; ED has no 2022-23 result for this district): ED shows district results as ranges (for example 20-24%) to protect small groups.
Graduation rate, class of 2023
94% of the 392 students in Mercer Island School District 400's class of 2023 graduated within four years, against 83.8% across Washington. The four-year rate follows the students who started ninth grade in fall 2019, adjusted for those who moved in or out, and counts those who earned a regular diploma by 2023. Every state computes it the same way under federal law, though each sets its own diploma requirements.
| This district | Washington | |
|---|---|---|
| Four-year graduation rate | 94% | 83.8% |
| Students in the class | 392 | 85,003 |
Source: U.S. Department of Education, EDFacts four-year adjusted-cohort graduation rates 2022-23, all students, from ED Data Express: ED shows district rates as ranges (for example 90-94%) and leaves out small classes.
4 elementary schools, 1,594 students
| School | Students | Per teacher | Free lunch | Title I, 2021‑22 |
|---|---|---|---|---|
| West Mercer Elementary | 431 | 16.5 | 7.0% | Not Title I |
| Lakeridge Elementary School | 401 | 17.2 | 1.5% | Not Title I |
| Northwood Elementary School | 398 | 15.0 | 7.0% | Targeted program |
| Island Park Elementary | 364 | 14.9 | 1.9% | Not Title I |
Source: NCES Common Core of Data 2024-25; Title I status CCD 2021-22, the last year NCES published it. All free (CEP): every student eats free under the Community Eligibility Provision, so the school reports no free-lunch count; not reported: the school sent NCES no meal count.
1 middle school, 960 students
| School | Students | Per teacher | Free lunch | Title I, 2021‑22 |
|---|---|---|---|---|
| Islander Middle School | 960 | 21.3 | 5.5% | Eligible, no program |
Source: NCES Common Core of Data 2024-25; Title I status CCD 2021-22, the last year NCES published it. All free (CEP): every student eats free under the Community Eligibility Provision, so the school reports no free-lunch count; not reported: the school sent NCES no meal count.
1 high school, 1,439 students
| School | Students | Per teacher | Free lunch | Title I, 2021‑22 |
|---|---|---|---|---|
| Mercer Island High School | 1,439 | 18.8 | 4.6% | Eligible, no program |
Source: NCES Common Core of Data 2024-25; Title I status CCD 2021-22, the last year NCES published it. All free (CEP): every student eats free under the Community Eligibility Provision, so the school reports no free-lunch count; not reported: the school sent NCES no meal count.
Contact Mercer Island School District 400
- Website: mercerislandschools.org
- Phone: (206) 236-3300
- Office: 4160 86th Ave Se, Mercer Island, WA 98040
Source: NCES Common Core of Data, local education agency directory 2024-25. Enrollment, boundaries and school assignment are the district's to confirm.
What to look at next about Mercer Island School District 400
- Washington districts by spending per studentMercer Island School District 400 ranks 74 of 150 Washington districts with at least 1,000 students in fall 2022 on current spending per student in fiscal year 2022-23 ($17,288).#74 of 150
- Every school district in WashingtonMercer Island School District 400 is the number 70 by size of 323 Washington districts, with 4,057 students in fall 2022 (F-33).#70 of 323
- Toppenish School DistrictThe next larger Washington district: 4,246 students in fall 2022, $18,015 per student in fiscal year 2022-23.$18,015
- Ridgefield School DistrictThe next smaller Washington district: 3,987 students in fall 2022, $14,095 per student in fiscal year 2022-23.$14,095
- Compare Mercer Island School District 400 with Toppenish School DistrictEnrollment, spending, revenue sources and schools, side by side.
- Mercer Island High School, its largest high school1,439 students in 2024-25, 18.8 per teacher.1,439
- Teacher salary spending across WashingtonMercer Island School District 400 spent $104,352 in salaries per full-time teacher in fiscal year 2022-23 (state median $84,529); spending, not a salary.$104,352
- Find the school district for an addressA home's district decides which public schools it can enroll in.
Source: NCES F-33 finance survey, fiscal year 2022-23 (spending per student and fall 2022 membership; ranks among the state's districts that reported them); NCES Common Core of Data 2024-25 (schools).
Questions about Mercer Island School District 400
How many schools and students are in Mercer Island School District 400?
6 schools were open in 2024-25 (4 elementary, 1 middle, 1 high), enrolling 3,993 students, according to the NCES Common Core of Data.How much does Mercer Island School District 400 spend per student?
$17,288 per student on current operations in fiscal year 2022-23 (NCES F-33), which leaves out construction and debt; the Washington median for districts with at least 1,000 students in fall 2022 is $17,250 and the U.S. figure is $16,260. Census Bureau figures for 2023-24 put it at $19,351 per student, up 11.9% on the year before (U.S. $17,619 that year).Where does Mercer Island School District 400's money come from?
$89,160,000 in revenue in fiscal year 2022-23: 58.0% state, 39.5% local and 2.5% federal (NCES F-33).How many children in Mercer Island School District 400 live in poverty?
The Census Bureau estimates that 135 of the 4,956 children aged 5 to 17 living within the district's boundaries in 2024, 2.7%, were in families in poverty (Small Area Income and Poverty Estimates). It is a model-based estimate for everyone living in the district, not a count of its students; the free-meal shares in the school tables are counts of enrolled students.How much does Mercer Island School District 400 spend on teacher salaries?
$22,465,000 in fiscal year 2022-23 (NCES F-33), or $5,537 per student. Divided by the 215 full-time teachers in the NCES Common Core of Data for 2022-23 that is $104,352 per teacher, more than 90 in 100 Washington districts (state median $84,529). That is spending, not what a teacher is paid: the salary lines and the teacher count come from different files, and the result can differ widely from the average salary a district publishes. The district's salary schedule gives pay. For pay, the National Education Association put the average Washington teacher salary at $81,586 in 2021-22 (NCES Digest table 211.60).How do students in Mercer Island School District 400 do on state tests?
In 2021-22, the students tested in Mercer Island School District 400 scored proficient or above: 85% in reading and 78-81% in math, against 53.4% in reading and 41% in math across Washington. Washington's own test sets what proficient means, so results compare within the state, not across states. Source: U.S. Department of Education, EDFacts state assessment results, 2021-22.What is the graduation rate in Mercer Island School District 400?
94% of the 392 students in Mercer Island School District 400's class of 2023 graduated within four years, against 83.8% across Washington. The four-year rate follows the students who started ninth grade in fall 2019, adjusted for those who moved in or out. Source: U.S. Department of Education, EDFacts four-year adjusted-cohort graduation rates, 2022-23.What is Mercer Island School District 400's NCES district ID?
5304980. Each of its schools' 12-digit NCES IDs begins with these seven digits.
Reading these figures: how to choose a school district, what Title I means and what an absenteeism rate means. They are for information and are not a substitute for the school's or district's own records.
Sources
Every federal file behind this record
- NCES Common Core of Data, 2024-25: directory, membership, staff and lunch files. nces.ed.gov
- NCES Common Core of Data, 2021-22 school characteristics: Title I status. nces.ed.gov
- Civil Rights Data Collection, 2021-22: AP courses, gifted programs, counselors, discipline. civilrightsdata.ed.gov
- EDFacts, 2022-23: chronic absenteeism. ed.gov
- EDFacts four-year adjusted-cohort graduation rates, 2022-23: the class of 2023 for the district and its state (ED Data Express). eddataexpress.ed.gov
- EDFacts state assessment results, 2021-22: reading and math proficiency for the district and its state (ED Data Express). eddataexpress.ed.gov
- NCES Digest of Education Statistics, table 211.60 (2021-22): the state's average teacher salary, from the National Education Association. nces.ed.gov
- U.S. Census Bureau, Small Area Income and Poverty Estimates, 2024: children aged 5 to 17 and those in families in poverty, by school district. census.gov
- U.S. Census Bureau, Annual Survey of School System Finances, fiscal year 2023-24: per pupil current spending for 2023-24 and 2022-23. census.gov
- NCES F-33 School District Finance Survey, fiscal year 2022-23: district spending and revenue. nces.ed.gov
- U.S. Census Bureau geocoder and TIGER school districts: the district boundary used by the district finder. census.gov
Source: U.S. Census Bureau, Annual Survey of School System Finances Per pupil current spending by school system · FY 2023-24
Source: NCES F-33 School District Finance Survey Revenue and expenditures by district · FY 2022-23
Source: NCES Common Core of Data School directory, membership, staff and lunch files · 2024-25