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Stillwater Elementary

Public Grades K-5
219th
SchoolDigger Rank ?
of 1,138 Washington Elementary Schools
Better than 81% of Washington elementary schools
Summary

Stillwater Elementary is a K–5 school in Carnation serving 491 students in the Riverview School District, a high-performing district in a community east of the Seattle metropolitan area. The district ranks 14th among Washington’s 238 districts, while Stillwater ranks in the 81st statewide percentile and has a four-star rating. Its statewide standing has improved from the 69th percentile in 2020–21, suggesting positive momentum.

Academically, Stillwater’s strongest areas are science and math. In 2025–26, 82.29% of students were proficient in science, 63.71% in math, and 62.93% in English language arts (ELA). Science was more than 31 percentage points above the state rate and nearly matched Cherry Valley Elementary School while exceeding Carnation Elementary School by 11.60 points. Math has also improved considerably, rising from 54.20% in 2022–23. Stillwater trails Cherry Valley and Carnation slightly in overall ELA and math, however, and ELA remains its clearest opportunity for growth. Compared with nearby schools in the Northshore and Lake Washington School District, Stillwater generally has lower ELA and math results, though its science performance is competitive with several of those higher-ranked schools.

Grade 5 is a notable strength: 79.17% of fifth graders were proficient in ELA, 70.83% in math, and 82.29% in science. Grades 3 and 4 had lower results, pointing to an opportunity for earlier literacy and math support. Recent outcomes for Hispanic students improved substantially to the 75th percentile, while results for female, male, and White students were also strong. Stillwater’s lower recent comparative results for students receiving special education services and students from low-income households are areas to monitor. The school serves a more economically diverse population than most nearby Northshore and Lake Washington schools, making direct score comparisons imperfect. Overall, Stillwater is a solid, improving school with standout science achievement, meaningful math growth, and strong end-of-elementary outcomes.

491
Students ?
16.0
Student/teacher ratio ?
$17,064
Per pupil spending ?
24%
Free/discounted lunch ?
 11530 320th Ave NE
       Carnation, WA  98014-9792

(425) 844-4680

District: Riverview School District


Students who attend Stillwater Elementary usually attend:

Middle:    Tolt Middle School
High:    Cedarcrest High School
Racial breakdown:

White:
65.2%
Hispanic:
16.9%
Two or more races:
9.8%
more
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 Compare Stillwater Elementary to nearby elementary schools!
At a glance
▲ Ranking trend: Improving — 70th percentile in 2016 → 81st in 2026
Strengths
✓Test scores above the Washington average (66% vs 48% meeting standards)
✓Ranks in the top 19% of Washington elementary schools
✓Ranking is trending up — up 11 percentile points since 2016
Worth a look
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2025-2026) ?
This school66%
District avg62%
Washington avg48%
219th of 1,138
Washington public elementary schools ?
Top 19%▲ up 11 pts since 2016
From top 30% (2016) to top 19% (2026)
See the entire ranking list of Washington Elementary Schools →
★★★★★
SchoolDigger rating ?
3rd of 3Elementary Schools in the Riverview School District
14th of 238Riverview School District among Washington districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankWashington percentileRating
202680.1219 of 113880.8%★★★★☆
202574.6261 of 116077.5%★★★★☆
202470.5309 of 116873.5%★★★★☆
202370.3323 of 116972.4%★★★★☆
202277.0256 of 116978.1%★★★★☆
202165.8346 of 110768.7%★★★☆☆
201979.6210 of 113081.4%★★★★☆
201872.8282 of 105473.2%★★★★☆
201776.3239 of 105677.4%★★★★☆
201668.9320 of 105369.6%★★★☆☆
201574.8237 of 106777.8%★★★★☆
201375.5234 of 110678.8%★★★★☆
201268.2335 of 109769.5%★★★☆☆
201171.4272 of 109275.1%★★★★☆
201064.9347 of 108868.1%★★★☆☆
200968.6307 of 107271.4%★★★★☆
200853.8521 of 106751.2%★★★☆☆
200772.4245 of 106977.1%★★★★☆
200667.0305 of 105171.0%★★★★☆
200568.0303 of 103170.6%★★★★☆
200454.5467 of 102654.5%★★★☆☆

Female

YearAvg scoreStatewide rankWashington percentileRating
202686.3134 of 102086.9%★★★★☆
202573.7255 of 109276.6%★★★★☆
202473.4258 of 109376.4%★★★★☆
202369.2301 of 109472.5%★★★★☆
202280.8190 of 110082.7%★★★★☆
202160.8362 of 100864.1%★★★☆☆
201979.0204 of 106880.9%★★★★☆
201875.9223 of 100477.8%★★★★☆

Hispanic

YearAvg scoreStatewide rankWashington percentileRating
202665.7160 of 64975.3%★★★★☆
202543.5375 of 65943.1%★★☆☆☆
202437.4431 of 65133.8%★★☆☆☆
202369.6134 of 63378.8%★★★★☆
202243.7361 of 69448.0%★★☆☆☆
201946.5372 of 69746.6%★★☆☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankWashington percentileRating
202546.1545 of 101346.2%★★☆☆☆
202443.7603 of 102441.1%★★☆☆☆
202345.8559 of 101344.8%★★☆☆☆
202249.5482 of 101952.7%★★★☆☆
201929.8758 of 97922.6%★☆☆☆☆
201857.7330 of 83560.5%★★★☆☆

Male

YearAvg scoreStatewide rankWashington percentileRating
202677.0220 of 105979.2%★★★★☆
202573.1257 of 109876.6%★★★★☆
202463.7374 of 109966.0%★★★☆☆
202367.0325 of 109970.4%★★★★☆
202270.1310 of 111372.1%★★★★☆
202167.7299 of 102570.8%★★★★☆
201978.8205 of 107580.9%★★★★☆
201861.7375 of 99962.5%★★★☆☆

Special Education

YearAvg scoreStatewide rankWashington percentileRating
202654.4170 of 43260.6%★★★☆☆
202252.6173 of 47863.8%★★★☆☆
201988.036 of 56693.6%★★★★★
201890.137 of 63794.2%★★★★★

White

YearAvg scoreStatewide rankWashington percentileRating
202679.6150 of 90183.4%★★★★☆
202572.8255 of 100774.7%★★★★☆
202468.4300 of 100970.3%★★★★☆
202362.1375 of 101162.9%★★★☆☆
202276.4224 of 103178.3%★★★★☆
202162.2331 of 94364.9%★★★☆☆
201980.1174 of 102783.1%★★★★☆
201861.6322 of 83361.3%★★★☆☆
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
Female (2026)87th percentile+6 vs school
White (2026)83rd percentile+3 vs school
Male (2026)79th percentile~ school
Hispanic (2026)75th percentile-5 vs school
Special Education (2026)61st percentile-20 vs school
Low Socio Economic Status (2025)46th percentile-31 vs school
By subject vs Washington (2025-2026) ?
Science82%+31 vs state
Math64%+21 vs state
English Language Arts63%+10 vs state

5.0
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What people are saying
by a parent
Monday, June 19, 2017

Open Quote Excellent PTSA involvement! The student teacher ratio is low. We moved from Snoqualmie Ridge and both kids are doing so well at Stillwater. The music program has been great. Kids are offered onsite Y programs after school like robotics and art. We couldn't be happier. Close Quote





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Frequently Asked Questions about Stillwater Elementary

In the 2024-25 school year, 491 students attended Stillwater Elementary.

Students at Stillwater Elementary are 65% White, 17% Hispanic, 10% Two or more races, 7% Asian.

Students who attend Stillwater Elementary usually go on to attend:

Middle : Tolt Middle School
High : Cedarcrest High School

Stillwater Elementary ranks 219th of 1138 Washington elementary schools. SchoolDigger rates this school 4 stars out of 5.

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Latest Washington data All new data »
2025–26 SBAC & WCAS test scoresSep 10, 2026
2024–25 dropout rates & graduation ratesJan 8, 2026
2022–23 through 2023–24 school spending dataJan 6, 2026
2024–25 SBAC & WCAS test scoresSep 10, 2025


SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau, the Washington State Department of Health and the Washington Office of Superindentent of Public Instruction.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.

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