Lowest Student–Teacher Ratio in North Clackamas SD 12 (2025)
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Ranked by the Success Index (US) from official American data; 29 schools in North Clackamas SD 12, Oregon. Rank positions shown on each profile are within United States and Oregon.
- 136Riverside Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 15.6
- 250Bilquist Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 16.2
- 330Linwood Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 16.2
- 452Cascade Heights Public Charter SchoolMilwaukie · Charter ElementaryStudents per teacher: 16.3
- 541Ardenwald Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 16.5
- 622Whitcomb Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 16.6
- 743Milwaukie El Puente Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 17.0
- 832Milwaukie High SchoolMilwaukie · Public HighStudents per teacher: 17.1
- 963Spring Mountain Elementary SchoolHappy Valley · Public ElementaryStudents per teacher: 17.5
- 1030Oak Grove ElementaryMilwaukie · Public ElementaryStudents per teacher: 17.5
- 1140Alder Creek Middle SchoolMilwaukie · Public MiddleStudents per teacher: 18.0
- 1244Verne A Duncan Elementary SchoolHappy Valley · Public ElementaryStudents per teacher: 18.2
- 1339Beatrice Morrow Cannady ElementaryDamascus · Public ElementaryStudents per teacher: 18.7
- 1433Rowe Middle SchoolMilwaukie · Public MiddleStudents per teacher: 18.7
- 1529Lewelling Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 18.8
- 1651Rock Creek Middle SchoolClackamas · Public MiddleStudents per teacher: 18.9
- 1748Oregon Trail Elementary SchoolClackamas · Public ElementaryStudents per teacher: 19.0
- 1842Sunnyside Elementary SchoolClackamas · Public ElementaryStudents per teacher: 19.1
- 1956Mount Scott Elementary SchoolHappy Valley · Public ElementaryStudents per teacher: 19.8
- 2028New Urban High SchoolMilwaukie · Public HighStudents per teacher: 20.0
- 2165Happy Valley Middle SchoolHappy Valley · Public MiddleStudents per teacher: 20.3
- 2246View Acres Elementary SchoolMilwaukie · Public ElementaryStudents per teacher: 20.4
- 2358Scouters Mountain ElementaryHappy Valley · Public ElementaryStudents per teacher: 21.0
- 2464Happy Valley Elementary SchoolHappy Valley · Public ElementaryStudents per teacher: 21.3
- 2569Sojourner SchoolMilwaukie · Public ElementaryStudents per teacher: 22.7
- 2645Putnam High SchoolMilwaukie · Public HighStudents per teacher: 24.1
- 2756Clackamas High SchoolClackamas · Public HighStudents per teacher: 26.7
- 2826Adrienne C. Nelson High SchoolHappy Valley · Public HighStudents per teacher: 27.4
- 2949Clackamas Middle CollegeHappy Valley · Charter HighStudents per teacher: 43.6
| # | School | Sector | Students per teacher | Success Index (US) | Key result | Students |
|---|---|---|---|---|---|---|
| 1 | Riverside Elementary School Milwaukie · Elementary · Grades K–5 | Public | 15.6 | 35.8 Lower 50% | 31% Math proficiency | 311 |
| 2 | Bilquist Elementary School Milwaukie · Elementary · Grades K–5 | Public | 16.2 | 49.5 Lower 50% | 47% Math proficiency | 373 |
| 3 | Linwood Elementary School Milwaukie · Elementary · Grades K–5 | Public | 16.2 | 30.2 Lower 50% | 22% Math proficiency | 259 |
| 4 | Cascade Heights Public Charter School Milwaukie · Elementary · Grades K–8 | Charter | 16.3 | 52.4 Top 50% | 57% Math proficiency | 228 |
| 5 | Ardenwald Elementary School Milwaukie · Elementary · Grades K–5 | Public | 16.5 | 41.4 Lower 50% | 37% Math proficiency | 396 |
| 6 | Whitcomb Elementary School Milwaukie · Elementary · Grades K–5 | Public | 16.6 | 21.6 Lower 50% | 14% Math proficiency | 415 |
| 7 | Milwaukie El Puente Elementary School Milwaukie · Elementary · Grades K–5 | Public | 17.0 | 43.0 Lower 50% | 42% Math proficiency | 408 |
| 8 | Milwaukie High School Milwaukie · High · Grades 9–12 | Public | 17.1 | 31.9 Lower 50% | 17% Math proficiency | 874 |
| 9 | Spring Mountain Elementary School Happy Valley · Elementary · Grades K–5 | Public | 17.5 | 62.5 Top 50% | 62% Math proficiency | 350 |
| 10 | Oak Grove Elementary Milwaukie · Elementary · Grades K–5 | Public | 17.5 | 29.9 Lower 50% | 32% Math proficiency | 262 |
| 11 | Alder Creek Middle School Milwaukie · Middle · Grades 6–8 | Public | 18.0 | 40.0 Lower 50% | 34% Math proficiency | 810 |
| 12 | Verne A Duncan Elementary School Happy Valley · Elementary · Grades K–5 | Public | 18.2 | 44.1 Lower 50% | 42% Math proficiency | 400 |
| 13 | Beatrice Morrow Cannady Elementary Damascus · Elementary · Grades K–5 | Public | 18.7 | 39.2 Lower 50% | 58.3% Free/reduced-price lunch | 506 |
| 14 | Rowe Middle School Milwaukie · Middle · Grades 6–8 | Public | 18.7 | 32.6 Lower 50% | 25% Math proficiency | 747 |
| 15 | Lewelling Elementary School Milwaukie · Elementary · Grades K–5 | Public | 18.8 | 29.2 Lower 50% | 27% Math proficiency | 282 |
| 16 | Rock Creek Middle School Clackamas · Middle · Grades 6–8 | Public | 18.9 | 50.8 Top 50% | 49% Math proficiency | 889 |
| 17 | Oregon Trail Elementary School Clackamas · Elementary · Grades K–5 | Public | 19.0 | 48.1 Lower 50% | 42% Math proficiency | 455 |
| 18 | Sunnyside Elementary School Clackamas · Elementary · Grades K–5 | Public | 19.1 | 41.9 Lower 50% | 41% Math proficiency | 402 |
| 19 | Mount Scott Elementary School Happy Valley · Elementary · Grades K–5 | Public | 19.8 | 56.4 Top 50% | 57% Math proficiency | 416 |
| 20 | New Urban High School Milwaukie · High · Grades 9–12 | Public | 20.0 | 27.5 Lower 50% | 10% Math proficiency | 320 |
| 21 | Happy Valley Middle School Happy Valley · Middle · Grades 6–8 | Public | 20.3 | 64.7 Top 50% | 65% Math proficiency | 1,158 |
| 22 | View Acres Elementary School Milwaukie · Elementary · Grades K–5 | Public | 20.4 | 46.4 Lower 50% | 42% Math proficiency | 367 |
| 23 | Scouters Mountain Elementary Happy Valley · Elementary · Grades K–5 | Public | 21.0 | 58.1 Top 50% | 60% Math proficiency | 568 |
| 24 | Happy Valley Elementary School Happy Valley · Elementary · Grades K–5 | Public | 21.3 | 63.5 Top 50% | 66% Math proficiency | 491 |
| 25 | Sojourner School Milwaukie · Elementary · Grades K–5 | Public | 22.7 | 68.5 Top 25% | 72% Math proficiency | 159 |
| 26 | Putnam High School Milwaukie · High · Grades 9–12 | Public | 24.1 | 44.6 Lower 50% | 34% Math proficiency | 1,060 |
| 27 | Clackamas High School Clackamas · High · Grades 9–12 | Public | 26.7 | 56.1 Top 50% | 50% Math proficiency | 1,280 |
| 28 | Adrienne C. Nelson High School Happy Valley · High · Grades 9–12 | Public | 27.4 | 26.1 Lower 50% | 58.5% Free/reduced-price lunch | 1,536 |
| 29 | Clackamas Middle College Happy Valley · High · Grades 9–12 | Charter | 43.6 | 48.5 Lower 50% | 32% Math proficiency | 305 |
Riverside Elementary School in Milwaukie leads the 2025 list of lowest student–teacher ratio in North Clackamas SD 12 with Students per teacher 15.6. Of the 29 schools shown, 27 are public, 2 are charter.
For the full picture see the wider Oregon lowest student–teacher ratio rankings, every school on the North Clackamas SD 12 page, or the comparison tool to put a shortlist side by side.
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Frequently asked questions
What is the best ratio school in North Clackamas SD 12?
Riverside Elementary School in Milwaukie, Oregon ranks first among lowest student–teacher ratio in North Clackamas SD 12 with Students per teacher 15.6 (Enrollment: 311).
How are lowest student–teacher ratio in North Clackamas SD 12 ranked?
Schools with the fewest students per FTE teacher, among schools with at least 100 students. Only schools eligible for the Success Index (US) are included; the index is shown alongside for context.
Are these 2025 rankings official?
No. They are computed by Success Tutoring from official American data (Urban Institute Education Data Portal (NCES CCD, EDFacts); NCES Common Core of Data). States set their own assessments and proficiency cut scores, so proficiency rates are most comparable within a state. Use the state rankings for like-for-like comparisons.