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Trillium Creek Primary School

Q: Is Trillium Creek Primary School a good school?

Trillium Creek Primary School ranks 80 th of 709 Oregon elementary schools. SchoolDigger rates this school 4 stars out of 5.

Public Grades PK, KG-5

80^th

SchoolDigger Rank ?

of 709 Oregon Elementary Schools

Better than 89% of Oregon elementary schools

Summary

Trillium Creek Primary School is a PK–5 elementary school in West Linn, Oregon, serving 480 students in the West Linn-Wilsonville School District 3J. It has a long record of high performance, ranking among Oregon's top 30–50 elementary schools from 2014–15 through 2018–19 with 5 stars. More recently, its rank has drifted: 80th of 709 in 2025–26 (89th percentile, 4 stars), 98th of 706 in 2024–25 (86th percentile, 4 stars), and 59th of 710 in 2023–24 (92nd percentile, 5 stars). It remains well within the top 15% of Oregon elementary schools but no longer posts top-5% ranks.

In 2025–26, Trillium Creek's all-grades OSAS proficiency rates were 65.0% in English Language Arts (district 61.4%, state 43.8%), 60.5% in math (district 48.3%, state 32.9%), and 43.6% in science (district 42.4%, state 30.6%). It is above the district in all three subjects and well above the state. Math is a relative strength, exceeding the district by 12.2 points. Within its district, it ranks 3rd of 6 in math, 5th of 6 in ELA, and 5th of 6 in science. Grade-level results show strength in 3rd and 4th grade math, but 5th grade math drops to 52.1% (5th in district). Chronic absenteeism is a clear strength at 14.3%, compared with 25.9% for the district and 33.5% for the state, though it rose from 9.7% the prior year. Free/reduced lunch is relatively low at 14.38% but has more than doubled from 5.88% in 2022–23.

Trillium Creek has the largest enrollment (480) and highest student–teacher ratio (19.3) in its district, while spending the least per student ($18,404). Yet it posts above-district and above-state proficiency in ELA and math. Subgroup service is strong: gifted and talented students rank 2nd of 70 statewide, and special education students rank in the 83rd–91st percentile. Female and male students also rank high. The main opportunities are in 5th-grade math and science, where it trails nearby peers like Stafford Primary School and Cedaroak Park Primary School. It also sits below Palisades World Language School and Hallinan Elementary School. Overall, Trillium Creek is a high-achieving, efficient school with strong math outcomes, excellent chronic absenteeism rates, and effective service to gifted and special education students. Families comparing nearby options should note that Stafford and Cedaroak currently post higher overall proficiency and statewide ranks.

480

Students ?

19.3

Student/teacher ratio ?

$18,404

Per pupil spending ?

14.4%

Free/discounted lunch ?

1025 Rosemont Rd
West Linn, OR 97068

(503) 673-7950

District: West Linn-Wilsonville School District 3J

Students who attend Trillium Creek Primary School usually attend:

Middle:	Rosemont Ridge Middle School
High:	West Linn High School

Racial breakdown:

White:

72.7%

Two or more races:

11.7%

Hispanic:

9.4%

See top rated Oregon elementary schools

Compare Trillium Creek Primary School to nearby elementary schools!

At a glance

▼ Ranking trend: Declining — 95th percentile in 2015 → 89th in 2026

Strengths

✓Test scores above the Oregon average (60% vs 37% meeting standards)

✓Ranks in the top 11% of Oregon elementary schools

Worth a look

!Ranking has slipped — down 6 percentile points since 2015

!Some student groups rank well below the school's overall statewide standing

Students meeting standards (2025-2026) ?

This school60%

District avg53%

Oregon avg37%

80^th of 709

Oregon public elementary schools ?

Top 11%▼ down 7 pts since 2016

From top 4% (2016) to top 11% (2026)

See the entire ranking list of Oregon Elementary Schools →

★★★★★

SchoolDigger rating ?

3^rd of 9Elementary Schools in the West Linn-Wilsonville School District 3J

7^th of 141West Linn-Wilsonville School District 3J among Oregon 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

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	86.1	80 of 709	88.7%	★★★★☆
2025	83.7	98 of 706	86.1%	★★★★☆
2024	89.7	59 of 710	91.7%	★★★★★
2023	84.4	91 of 706	87.1%	★★★★☆
2022	92.3	41 of 706	94.2%	★★★★★
2019	93.1	36 of 705	94.9%	★★★★★
2018	93.8	33 of 709	95.3%	★★★★★
2017	90.0	49 of 701	93.0%	★★★★★
2016	93.6	30 of 697	95.7%	★★★★★
2015	93.2	36 of 706	94.9%	★★★★★

Female

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	86.5	61 of 655	90.7%	★★★★★
2025	74.1	132 of 653	79.8%	★★★★☆
2024	83.5	82 of 658	87.5%	★★★★☆
2023	81.3	98 of 652	85.0%	★★★★☆
2022	81.4	95 of 646	85.3%	★★★★☆
2019	88.5	56 of 621	91.0%	★★★★★
2018	91.1	42 of 681	93.8%	★★★★★

Gifted and Talented

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	79.4	2 of 70	97.1%	★★★★★

Hispanic

Year	Avg score	Statewide rank	Oregon percentile	Rating
2018	98.8	1 of 475	99.8%	★★★★★

Low Socio Economic Status

Year	Avg score	Statewide rank	Oregon percentile	Rating
2022	92.5	39 of 703	94.5%	★★★★★
2018	53.3	283 of 640	55.8%	★★★☆☆

Male

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	80.3	101 of 657	84.6%	★★★★☆
2025	88.4	62 of 664	90.7%	★★★★★
2024	91.0	44 of 662	93.4%	★★★★★
2023	82.9	90 of 665	86.5%	★★★★☆
2022	94.6	28 of 654	95.7%	★★★★★
2019	94.0	22 of 623	96.5%	★★★★★
2018	93.9	25 of 680	96.3%	★★★★★

Multi-racial

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	59.2	33 of 79	58.2%	★★★☆☆
2025	55.7	36 of 73	50.7%	★★★☆☆
2024	52.1	28 of 54	48.1%	★★★☆☆
2019	68.2	18 of 61	70.5%	★★★★☆
2018	74.6	44 of 212	79.2%	★★★★☆

Special Education

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	70.1	59 of 355	83.4%	★★★★☆
2025	84.7	31 of 352	91.2%	★★★★★
2019	85.1	21 of 303	93.1%	★★★★★
2018	79.5	52 of 481	89.2%	★★★★☆

White

Year	Avg score	Statewide rank	Oregon percentile	Rating
2026	77.8	116 of 670	82.7%	★★★★☆
2025	72.9	140 of 669	79.1%	★★★★☆
2024	82.9	98 of 670	85.4%	★★★★☆
2023	76.0	120 of 656	81.7%	★★★★☆
2022	83.2	74 of 666	88.9%	★★★★☆
2019	89.4	43 of 662	93.5%	★★★★★
2018	90.4	38 of 683	94.4%	★★★★★

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)

Hispanic (2018)100th percentile+4 vs school

Gifted and Talented (2026)97th percentile+8 vs school

Low Socio Economic Status (2022)94th percentile~ school

Female (2026)91st percentile~ school

Male (2026)85th percentile-4 vs school

Special Education (2026)83rd percentile-5 vs school

White (2026)83rd percentile-6 vs school

Multi-racial (2026)58th percentile-30 vs school

By subject vs Oregon (2025-2026) ?

English Language Arts65%+21 vs state

Mathematics60%+28 vs state

Science44%+13 vs state

5.0

3 ratings · 2 written reviews

5★3

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3★0

2★0

1★0

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What people are saying

by a parent
Wednesday, April 14, 2021

When shopping for our house, my son loved Trillium Creek. The staff gave us a tour of the award winning designed school. He was challenged all of his years there by fantastic teachers. There definitely was a promoted social group bond with the students with regular activities. My son was always happy to go to class and still has his great friend group. Close Quote

by a parent
Friday, April 2, 2021

My son attended TCPS for two years. Teachers are warm and nurturing. There is fun, fast slide INSIDE the building. Great school in a great neighborhood. Close Quote

Schools Near Trillium Creek Primary School

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Ranking:

E Elementary M Middle H High A Alternative P Private

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2026)				Ranking (2025)				OSAS English Language Arts (2026)				OSAS Mathematics (2026)				OSAS Science (2026)		Per Pupil Expenditures (2025)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients (2025)	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2026)	Statewide Rank (2026)	State Percentile (2026)	SchoolDigger Rating (2026)	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	Rank Change from Previous Year	OSAS English Language Arts 3rd Grade	OSAS English Language Arts 4th Grade	OSAS English Language Arts 5th Grade	OSAS English Language Arts All Grades	OSAS Mathematics 3rd Grade	OSAS Mathematics 4th Grade	OSAS Mathematics 5th Grade	OSAS Mathematics All Grades	OSAS Science 5th Grade	OSAS Science All Grades	Per Pupil Expenditures Total	Sub-total from Federal Funds	Sub-total from State/Local Funds
Trillium Creek Primary School	Public	PK, KG-5	1025 Rosemont Rd	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7950	480	25	19.3	14.4%	349 (72.7%)	5 (1.0%)	45 (9.4%)	24 (5.0%)	0 (0.0%)	0 (0.0%)	56 (11.7%)	86.1	80^th of 709 public elementary schools	88.7%		83.7	98^th of 706 public elementary schools	86.1%	18	66.7	60.7	67.7	65.0	64.0	66.3	52.1	60.5	43.6	43.6	$18,404	$00	$18,404
Cedaroak Park Primary School	Public	PK, KG-5	4515 S Cedaroak Dr	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7100	348	22	16.0	44.3%	260 (74.7%)	2 (0.6%)	39 (11.2%)	10 (2.9%)	1 (0.3%)	1 (0.3%)	35 (10.1%)	93.5	37^th of 709 public elementary schools	94.8%		96.3	20^th of 706 public elementary schools	97.2%	17	72.9	72.6	74.3	73.4	64.6	64.5	60.8	63.0	59.5	59.5	$19,143	$00	$19,143
Sunset Primary School	Public	PK, KG-5	2351 Oxford St	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7200	375	23	16.5	44.5%	259 (69.1%)	6 (1.6%)	35 (9.3%)	13 (3.5%)	2 (0.5%)	2 (0.5%)	58 (15.5%)	84.7	88^th of 709 public elementary schools	87.6%		84.8	88^th of 706 public elementary schools	87.5%		69.8	61.5	66.2	66.1	61.9	55.8	52.3	56.7	43.1	43.1	$18,616	$00	$18,616
Bolton Primary School	Public	PK, KG-5	5933 Holmes St	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7900	222	15	14.6	21.2%	165 (74.3%)	2 (0.9%)	25 (11.3%)	12 (5.4%)	0 (0.0%)	1 (0.5%)	17 (7.7%)	82.7	101^st of 709 public elementary schools	85.8%		93.1	39^th of 706 public elementary schools	94.5%	62	61.5	67.7	65.6	64.7	50.0	58.1	46.9	51.5	53.1	53.1	$21,652	$00	$21,652
Riverside Elementary School	Public	K-5	16303 SE River Rd	Milwaukie	97267	Clackamas County	North Clackamas School District 12	No	(n/a)	No	Yes	(503) 353-5560	311	20	15.5	58.8%	167 (53.7%)	2 (0.6%)	121 (38.9%)	4 (1.3%)	0 (0.0%)	2 (0.6%)	14 (4.5%)	37.7	429^th of 709 public elementary schools	39.5%		40.1	397^th of 706 public elementary schools	43.8%	32	24.5	60.4	44.4	42.5	20.8	31.3	22.2	24.7	33.3	33.3	$24,707	$1,777	$22,930
Hallinan Elementary School	Public	K-5	16800 Hawthorne Dr	Lake Oswego	97034	Clackamas County	Lake Oswego School District 7J	No	(n/a)	No	No	(503) 534-2353	364	26	14.2	15.9%	267 (73.4%)	5 (1.4%)	35 (9.6%)	19 (5.2%)	0 (0.0%)	4 (1.1%)	34 (9.3%)	92.8	40^th of 709 public elementary schools	94.4%		97.1	15^th of 706 public elementary schools	97.9%	25	54.8	76.5	82.3	71.4	61.3	70.6	76.7	69.5	71.0	71.0	$20,223	$333	$19,890
Willamette Primary School	Public	PK, KG-5	1403 SE 12th St	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7250	384	23	17.0	44.3%	279 (72.7%)	6 (1.6%)	40 (10.4%)	10 (2.6%)	0 (0.0%)	0 (0.0%)	48 (12.5%)	85.3	84^th of 709 public elementary schools	88.2%		89	66^th of 706 public elementary schools	90.7%	18	65.4	69.0	64.6	66.3	49.1	63.4	57.3	57.3	46.3	46.3	$19,899	$00	$19,899
Stafford Primary School	Public	PK, KG-5	19875 SW Stafford Rd	West Linn	97068	Clackamas County	West Linn-Wilsonville School District 3J	No	(n/a)	No	No	(503) 673-7150	323	17	18.5	12.7%	256 (79.3%)	1 (0.3%)	28 (8.7%)	9 (2.8%)	0 (0.0%)	2 (0.6%)	27 (8.4%)	95.1	31^st of 709 public elementary schools	95.6%		94.2	36^th of 706 public elementary schools	94.9%	5	75.6	76.9	70.6	73.9	86.7	69.8	63.2	71.7	58.6	58.6	$18,866	$00	$18,866
Gladstone Center for Children and Families	Public	PK-K	18905 Portland Ave	Gladstone	97027	Clackamas County	Gladstone School District 115	No	(n/a)	No	No	(503) 496-3939	109	8	14.1	82.6%	81 (74.3%)	0 (0.0%)	16 (14.7%)	0 (0.0%)	1 (0.9%)	0 (0.0%)	11 (10.1%)								(n/a)											$27,129	$300	$26,829
Candy Lane Elementary School	Public	K-5	5901 SE Hull St	Milwaukie	97267	Clackamas County	Oregon City School District 62	No	(n/a)	No	Yes	(503) 785-8150	363	13	28.3	54.5%	147 (40.5%)	2 (0.6%)	187 (51.5%)	2 (0.6%)	0 (0.0%)	0 (0.0%)	23 (6.3%)	31.4	486^th of 709 public elementary schools	31.5%		32.7	467^th of 706 public elementary schools	33.9%	19	30.7	22.6	48.3	33.3	28.4	25.4	25.4	26.5	33.9	33.9	$18,810	$1,182	$17,628

Frequently Asked Questions about Trillium Creek Primary School

What district is Trillium Creek Primary School in?

West Linn-Wilsonville School District 3J

Is Trillium Creek Primary School a good school?

Trillium Creek Primary School ranks 80^th of 709 Oregon elementary schools. SchoolDigger rates this school 4 stars out of 5.

What schools do graduates of Trillium Creek Primary School attend?

Students who attend Trillium Creek Primary School usually go on to attend:

Middle : Rosemont Ridge Middle School
High : West Linn High School

How many students attend Trillium Creek Primary School?

In the 2024-25 school year, 480 students attended Trillium Creek Primary School.

What is the racial makeup of Trillium Creek Primary School?

Students at Trillium Creek Primary School are 73% White, 12% Two or more races, 9% Hispanic, 5% Asian, 1% African American.

Rate Trillium Creek Primary School!

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Latest Oregon data All new data »

2025–26 OSAS test scoresSep 25, 2026

2023–24 through 2024–25 school spending dataAug 24, 2026

2024–25 graduation ratesJan 29, 2026

2024–25 attendance dataNov 20, 2025

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Oregon Department of Education.

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.