Enrollment
313
Middle
DISTRICT 534 · STATE 577
SCHOOL COMMUNITY·MONROE SCHOOL DISTRICT·NCES 530513002761
Hidden River Middle School
9224 Paradise Lake Rd., Snohomish, WA 98296 · (360) 804-4100 · Snohomish County
GRADES 06–08MIDDLE21-SUBURBREGULAR SCHOOL313 STUDENTS
Student : Teacher
18.0:1
17 FTE teachers
DISTRICT 18.8:1 · STATE 18.9:1
Free / Reduced Lunch
35%
110 students
DISTRICT 41% · STATE 51%
Community
0
0 members
Enrollment and student:teacher ratio compared against other middle schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 6 | 110 | 35% |
| Grade 7 | 100 | 32% |
| Grade 8 | 103 | 33% |
Student demographics
48%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 57% · STATE 68% · US 70%
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
Test scores
Smarter Balanced + WCAS 2024-25 . % Met or Exceeded StandardEnglish Language Arts
57.5%
WA avg 58.4% . -6.7pp since 2014
Math
42.5%
WA avg 51.2% . -12.6pp since 2014
What this means: On the Smarter Balanced + WCAS, Washington's statewide test, about 58 of every 100 students at this school read and write at grade level and about 42 of 100 do math at grade level. Across all Washington schools, those numbers are about 58 and 51. Reading and writing scores are down about 7 points since 2014, while math scores are down about 13 points.
Smarter Balanced + WCAS results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2024-25 | 57.5% | 42.5% |
| 2023-24 | 54.1% | 40.1% |
| 2022-23 | 50.0% | 33.3% |
| 2021-22 | 50.8% | 32.2% |
| 2018-19 | 69.0% | 56.2% |
| 2017-18 | 69.0% | 62.0% |
| 2016-17 | 64.5% | 58.8% |
| 2015-16 | 68.5% | 62.0% |
| 2014-15 | 64.3% | 55.0% |
% 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 · methodologyTier
AS EXPECTED
Performing as predicted given the school's student profile
Actual proficiency
48.0%
composite math + reading, all grades
Predicted
56.6%
based on WA schools with similar FRL share
Beats by
-8.7pp
below demographic expectation
What this means: About 48% of students here test proficient in math and reading, compared with the roughly 57% 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 Hidden River Middle School
Hidden River Middle School's state test result (48.0% proficient) is higher than 1 of the 3 schools below with a result.
| School | Students | Low-income | Proficient |
|---|---|---|---|
| Hidden River Middle School this school | 313 | 35.1% | 48.0% |
| Reeves Middle School OLYMPIA | 394 | 35.8% | 50.2% |
| South Whidbey Middle Langley | 290 | 34.5% | 45.5% |
| Lakeside Middle School Nine Mile Falls | 293 | 35.2% | 60.0% |
| Kalama Middle School Kalama | 266 | 40.2% | N/A |
| La Center Middle School La Center | 441 | 33.6% | N/A |
Matched among Washington middle 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 Hidden River Middle School ranks
Among middle schools| Measure | This school | In Washington | In Snohomish County |
|---|---|---|---|
| State test proficiency ranked highest first | 48.0% | #103 of 294 | #14 of 32 |
| Math proficiency ranked highest first | 42.5% | #121 of 357 ▼ 5 | #13 of 32 ▼ 1 |
| Reading proficiency ranked highest first | 57.5% | #105 of 357 ▲ 11 | #13 of 32 ▲ 2 |
| 3-year test score change ranked biggest gain first | +8.5pp | #34 of 290 | #8 of 32 |
| Enrollment ranked largest first | 313 | #310 of 377 | #31 of 33 |
| Students per teacher ranked fewest first | 18.0:1 | #97 of 340 | #3 of 32 |
| Diversity index ranked most diverse first | 48.2% | #244 of 340 | #27 of 32 |
| Free and reduced lunch ranked highest share first | 35.1% | #274 of 359 | #21 of 32 |
| Enrollment change since 2017-18 ranked steepest decline first | -29.2% | #16 of 192 | #1 of 13 |
Ranked against other public middle 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
313
-104 (-25%) vs 2020
-6% since 2000-01, when it was 333
Student : Teacher
18.0:1
was 13.4:1
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 | 313 | 17.4 | 18.0:1 | 35% (110) |
| 2023-24 | 298 | 17.6 | 17.0:1 | 37% (111) |
| 2022-23 | 327 | 17.3 | 18.9:1 | 39% (127) |
| 2020-21 | 417 | 31 | 13.4:1 | 32% (132) |
| 2017-18 | 442 | 23.4 | 18.9:1 | 25% (111) |
| 2015-16 | 413 | 21 | 19.7:1 | 28% (115) |
| 2010-11 | 374 | 17 | 22.0:1 | 17% (63) |
| 2000-01 | 333 | 15 | 22.2:1 | N/A |
Source: NCES Common Core of Data. Rows are the federal collections on file for Hidden River Middle School.
Since 2017-18: students down 29% (442 to 313); teachers down 26% (23.4 to 17.4).
About Hidden River Middle School
Hidden River Middle School is a low-enrollment middle school in Snohomish, Washington, under Monroe School District. Enrollment in 2024-25 was 313 students in grades 6 through 8. Against the 577-student average for middle schools in Washington, enrollment here is 46% lower.
District-wide, Monroe School District has 12 schools and 5,874 students.
At Hidden River Middle School, White students make up 67% of the student body. The school is also 22% Hispanic and 7% multiracial. For comparison, Snohomish County is about 64% White. Hidden River Middle School's diversity index is 48%, against a US figure of 70%.
Staffing totals 17.4 full-time-equivalent teachers, and the student-to-teacher ratio is 18.0:1. On average, middle schools in Washington have 18.9:1, compared with 18.0:1 here. The free or reduced-price lunch rate at Hidden River Middle School is 35%.
Hidden River Middle School sits between the top and bottom 10% of Washington schools on BeatsExpectations, with an actual average proficiency rate on state tests of 48.0% and a predicted 56.6%.
Across Snohomish County, the median household income is $111,246, the share of adults with a bachelor's degree or higher is 38%, and about 6% of people live in poverty. In all, Snohomish County has 227 public schools and roughly 118,688 students.
The closest other public school is Maltby Elementary, about 0.4 miles away. Hidden River Middle School has at least 8 other public schools within five miles. Local comparison: Hidden River Middle School ranks 8th of 8 nearby schools, at 48.0% versus a 68.1% average.
Hidden River Middle School is in a suburban area outside a principal city, within an urbanized area with a population of 250,000 or more, a location NCES labels Suburb: Large.
Hidden River Middle School's enrollment declined from 417 in 2020-21 to 313 in 2024-25. From 2020-21 to 2024-25, the ratio rose from 13.4:1 to 18.0:1.
Posts about school events, clubs, and volunteer needs are welcome on this page. Reviews and ratings from people who know the school are welcome.
Snohomish County at a glance
View full county profilePopulation
844,430
Census ACS
Median income
$111,246
Household, ACS
Bachelor's+
38%
Adults 25+
Poverty rate
6%
Below federal line
Schools in county
227
118,688 students
Quick facts
Related schools
Other schools in Monroe School District
- Monroe High SchoolHigh · 1,515 students
- Sky Valley Education CenterCombined · 985 students
- Park Place Middle SchoolMiddle · 755 students
- Frank Wagner ElementaryElementary · 545 students
- Salem Woods Elementary SchoolElementary · 516 students
- Chain Lake Elementary SchoolElementary · 434 students
Other schools in Snohomish
- Glacier Peak High SchoolHigh · 1,642 students
- Snohomish High SchoolHigh · 1,496 students
- Centennial Middle SchoolMiddle · 734 students
- Dutch Hill ElementaryElementary · 694 students
- Little Cedars Elementary SchoolElementary · 646 students
- Valley View Middle SchoolMiddle · 641 students
Other Hidden River Middle schools
One other US public school is named Hidden River Middle. Hidden River Middle School is the 2nd largest of the 2.
- Hidden River Middle SchoolSAINT PAUL, MN · 640 students
Nearby schools
- Maltby Elementary0.4 mi · 334
- Cathcart Elementary1.9 mi · 497
- Leota Middle School2.3 mi · 858
- Wellington Elementary2.3 mi · 380
- Kokanee Elementary2.7 mi · 651
- Ruby Bridges Elementary2.8 mi · 503
Frequently asked questions
About Hidden River Middle SchoolWhat is the total enrollment at Hidden River Middle School?
Hidden River Middle School enrolls approximately 313 students in grades 06-08.
What grades does Hidden River Middle School serve?
Hidden River Middle School serves grades 06-08.
How many teachers does Hidden River Middle School have?
Hidden River Middle School employs 17 FTE teachers, for a student-to-teacher ratio of 18.0:1.
How diverse is Hidden River Middle School?
Hidden River Middle School reports a student body of 67% White, 22% Hispanic, 2% Asian, 7% Two or more.
Who oversees Hidden River Middle School?
Hidden River Middle School is overseen by Monroe School District in Snohomish County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.