Totem Falls

Snohomish, WA · Grades K–6

Seattle-Tacoma-Bellevue, WA

Neighborhood

Decoded Rank

All factors combined

Top 30% decoded

#137 of 680

Seattle-Tacoma-Bellevue, WA schools

★ Above Expected

#246 in WA

Achievement Rank

Raw test performance

Top 30% achievement

#148 of 680

Seattle-Tacoma-Bellevue, WA schools

#175 in WA

places from achievement to Decoded Rank

Raw scores are strong here, and the school still performs above expected for its context.

Data confidence:High350 students tested 8 years96% participation

Confidence is computed from sample size, year coverage, and participation rate. Higher confidence means the rank shift is stable across years and not driven by a single small cohort.

  • Tested students: total students with valid scores across all reported years.
  • Years of data: number of school years included. More years smooths year-to-year noise.
  • Participation: share of enrolled students who took the assessment. Low participation can bias scores.

What's driving this rank

Decoded Rank: #137 of 680

in Seattle-Tacoma-Bellevue, WA schools

Each component below is scored on a 0–100 within-metro scale. A qualitative band summarizes where the school lands.

  • About averagePerforms above what its context predictsCounts for 35% of the rank

    After accounting for income and demographics, does this school beat what the data would predict?

  • Above averageStudents gain ground year over yearCounts for 30% of the rank

    Are kids at this school learning faster than typical for the metro?

  • StrongEquity within the schoolCounts for 15% of the rank

    Are students clustered at similar levels, or split between top and bottom?

  • About averageDirection over recent yearsCounts for 10% of the rank

    Is this school's Decoded Rank trending up or down across the years we have data for?

  • StrongMost students were testedCounts for 10% of the rank

    Was the rank computed against a representative share of the school's students?

Show the numbersFor the methodology-curious

Each component is converted to a 0–100 within-metro percentile (100 = top of the metro). "Contribution" is the percentile-points the component adds to (or subtracts from) the metro median before the schools are re-ranked into the composite.

Per-component contributions to this school's Decoded Rank composite. Weight is the share each component carries; percentile is the school's within-metro score on that component.
ComponentWeightPercentileContribution
Performs above what its context predicts 35%59+3.1
Students gain ground year over year 30%74+7.3
Equity within the school 15%82+4.8
Direction over recent years 10%50+0.0
Most students were tested 10%96+4.6

How the Decoded Rank composite is computed

Why trust this?
  • Public data sources
  • Context-adjusted model
  • Confidence shown
  • Methodology published

This score uses state assessment data, NCES enrollment data, and Census ACS 5-year neighborhood data. The Decoded Rank adjusts for school context — student demographics, ELL/SPED service rates, and the socioeconomic profile of the surrounding tract — and shows how the school performs relative to expectation, not in absolute terms.

SchoolDecoder is one signal, not a verdict. Decoded Rank is a context-adjusted residual, not a causal claim about teaching quality. See full methodology →

All Rankings

How this school ranks across the metro, state, and among demographic peers.

ScopeAchievementDecodedShift
Seattle-Tacoma-Bellevue, WA (680 schools)#148#137
WA (1506 schools)#175#246
Among similar schools (6 peers)#4#3

Resource context

School inputs, not ranking points

These fields describe the school and surrounding neighborhood. They help readers interpret the page, but this is not a dollar-by-dollar or ratio-by-ratio scorecard and the fields here are not components of the Decoded Rank.

Enrollment
412
Free/reduced-price lunch
10.9%
Student-teacher ratio
14.7:1
Locale
Suburb, large
School type
Regular public school
Enrollment model
Neighborhood attendance area
Neighborhood median income
$153,350ACS tract proxy
Neighborhood poverty
0.0%ACS tract proxy
SES index
92.6
Assessment data year
2025
CCD year
2024
ACS vintage
2020-2024

Within Snohomish School District: #1 of 10.Top quintile in district. View district

Performance Spread

How students are distributed across the four state-assessment proficiency levels — L1: below standard, L2: approaching, L3: meets (proficient), L4: exceeds. This describes the shape of results at the school, not their height.

Students at this school cluster closely on the proficiency ladder.

  • Level 1 — Below standard11%
  • Level 2 — Approaching standard17%
  • Level 3 — Meets standard (proficient)32%
  • Level 4 — Exceeds standard40%

Performance Spread measures how evenly students are distributed across the L1..L4 proficiency ladder, treating the levels as an ordered scale (L1=1, L2=2, L3=3, L4=4) and weighting each by its student share. A school where most students cluster at one level has a TIGHT spread; a school split between the bottom and top has a WIDE or BIMODAL spread. Bimodal fires only when BOTH tails are non-trivial AND the middle is relatively hollow (pct_L1 ≥ 15, pct_L4 ≥ 25, pct_L2 + pct_L3 ≤ 60). It describes shape — NOT how high the school's scores are. Methodology

Nearby Schools

Sorted by distance. Both rank columns shown so you can compare quickly.

SchoolAchievementDecodedShiftStoryConfidence
Silver Firs Elementary#84#35High
Little Cedars Elementary School#178#315High
Glacier Peak High School Rankings coming soon.
Forest View Elementary School#34#53High
Gateway Middle School#87#40High

Similar Schools

Schools with comparable demographics, income, and size. Both rank columns shown for direct comparison.

SchoolAchievementDecodedShiftStoryConfidence
Challenge Elementary Rankings coming soon.
John Stanford International School#28#52High
Norman Rockwell Elementary#99#368High
Gatewood Elementary School#187#218High
Northwood Elementary School#90#124High

Historical Ranks

Year-by-year decoded and achievement ranks. Pandemic-affected years are excluded — we don't interpolate scores across the gap.

YearAchievementDecodedShift
2025#148#137
2024#161#102
2023#167#201

Note: assessment transitions (where a state changes its test) are footnoted on the methodology page; trends are not computed across breakpoints.

Trajectory

2023: percentile 562024: percentile 652025: percentile 59

Holding steady

Based on 3 years (2023–2025).

Slope: +1.3 pct/yr (95% CI -50.8 to 53.5)

Low confidence

How this works: we fit a linear trend across the available years of Decoded percentile, then bucket the slope into a direction. Wide confidence intervals (uncertain trends) collapse to Holding steady. See the methodology page for thresholds.

Cohort Progression

Kids who started 3rd grade here in 2015 lost 6 proficiency points by 6th grade.

Cohort-to-cohort variance is high — interpret the headline cautiously.

Learning rate: +3.9 proficiency points/yr (95% CI -4.0 to 11.9)

Medium confidence

Cohort 20152016201720182019202320242025 Slope
ELA · started 6th in 2015
G6
299
ELA · started 5th in 2015
G5
305
G6
291
-14.1
ELA · started 4th in 2015
G4
346
G5
327
G6
303
-21.5
ELA · started 3rd in 2015
G3
300
G4
330
G5
315
G6
294
-3.4
ELA · started 3rd in 2016
G3
323
G4
338
G5
324
G6
323
-1.2
ELA · started 3rd in 2017
G3
294
G4
298
G5
304
+4.9
ELA · started 3rd in 2018
G3
304
G4
343
+38.9
ELA · started 3rd in 2019
G3
270
ELA · started 6th in 2023
G6
291
ELA · started 5th in 2023
G5
286
G6
315
+29.4
ELA · started 4th in 2023
G4
298
G5
257
G6
281
-8.6
ELA · started 3rd in 2023
G3
298
G4
328
G5
340
+20.9
ELA · started 3rd in 2024
G3
312
G4
326
+13.8
ELA · started 3rd in 2025
G3
287
Math · started 6th in 2015
G6
270
Math · started 5th in 2015
G5
298
G6
312
+14.1
Math · started 4th in 2015
G4
314
G5
330
G6
311
-1.5
Math · started 3rd in 2015
G3
315
G4
344
G5
329
G6
302
-5.3
Math · started 3rd in 2016
G3
323
G4
346
G5
328
G6
330
+0.4
Math · started 3rd in 2017
G3
292
G4
298
G5
306
+6.8
Math · started 3rd in 2018
G3
339
G4
348
+9.4
Math · started 3rd in 2019
G3
292
Math · started 6th in 2023
G6
286
Math · started 5th in 2023
G5
248
G6
294
+46.1
Math · started 4th in 2023
G4
302
G5
231
G6
264
-19.0
Math · started 3rd in 2023
G3
317
G4
337
G5
322
+2.4
Math · started 3rd in 2024
G3
316
G4
320
+3.2
Math · started 3rd in 2025
G3
315

How this works: we follow each grade-cohort across years through the school (3rd graders in 2023 are 4th graders in 2024, etc.) and fit a linear slope on a 100–400 proficiency-points scale built from the state assessment's four levels (L1=1, L2=2, L3=3, L4=4, weighted by student share). This is the same construction Stanford SEDA uses (edopportunity.org/methods); it's not student-level tracking — we measure the school's cohort, not individuals. See the methodology page for thresholds.

Evidence & technical detailClick to expand

School Alpha

School Alpha is the residual between actual and expected performance once school context is held constant. It is a context-adjusted estimate, not a causal claim about teaching quality.

Shrunk Alpha (95% CI)
+0.11 (95% CI: +0.05 to +0.17)

SES index components

SES method
Blended SES index (ACS + FRL)
SES index value
92.6
FRL %
10.9%
ELL %
SPED %
Tract median income (ACS 5-year)
$153,350
Tract poverty rate
0.0%
Tract % bachelor's+
52.6%

What "Decoded Rank" means

Decoded Rank converts School Alpha — the context-adjusted residual — into a parent-facing rank within the metro pool. A higher Decoded Rank than Achievement Rank means the school's raw scores understate its performance once neighborhood and school context are held constant. The reverse means raw scores overstate it. The rank is one signal, not a verdict.

Data & sources

Assessment data
2024–25 school year
NCES CCD vintage
2024
Census ACS 5-year vintage
2020-2024
Last updated
May 29, 2026
Methodology version
0.2.0

SchoolDecoder publishes context-adjusted residuals, not causal estimates. Decoded Rank is one signal — not a verdict on teaching quality. Read about limitations →