allk12 · Rankings · Lowest ratio · Oregon · Clackamas County · High schools

The public high schools with the lowest student-to-teacher ratios in Clackamas County, Oregon

Across Clackamas County, Oregon, 17 public high schools are ranked here, ranked by the fewest students per teacher, a proxy for class size and staffing. Milwaukie High School leads the list at 16.9:1, against a median of 21.9:1 across the ranked schools.

Use the search box to find a specific school within this ranking, sort by any column, or export the full list. Built from NCES and state data for 2024-25.

Schools ranked

Clackamas County, Oregon

Best Students/teacher

16.9:1

Median Students/teacher

21.9:1

LOWEST RATIO · CLACKAMAS COUNTY, OREGON

#	School	City	District	Level	Students	Ratio
1	Milwaukie High School	Milwaukie, OR	North Clackamas SD 12	High	874	16.9:1
2	Wilsonville High School	Wilsonville, OR	West Linn-Wilsonville SD 3J	High	1,258	17.3:1
3	Lakeridge High School	Lake Oswego, OR	Lake Oswego SD 7J	High	1,241	17.9:1
4	Molalla High School	Molalla, OR	Molalla River SD 35	High	745	18.5:1
5	Lake Oswego High School	Lake Oswego, OR	Lake Oswego SD 7J	High	1,282	18.5:1
6	New Urban High School	Milwaukie, OR	North Clackamas SD 12	High	320	19.4:1
7	West Linn High School	West Linn, OR	West Linn-Wilsonville SD 3J	High	1,809	19.5:1
8	Gladstone High School	Gladstone, OR	Gladstone SD 115	High	559	20.6:1
9	Canby High School	Canby, OR	Canby SD 86	High	1,402	21.9:1
10	Clackamas Academy of Industrial Sciences	Oregon City, OR	Oregon City SD 62	High	325	22.2:1
11	Putnam High School	Milwaukie, OR	North Clackamas SD 12	High	1,060	23.8:1
12	Sandy High School	Sandy, OR	Oregon Trail SD 46	High	1,420	24.1:1
13	Estacada High School	Estacada, OR	Estacada SD 108	High	558	24.3:1
14	Oregon City Senior High School	Oregon City, OR	Oregon City SD 62	High	1,944	26.0:1
15	Clackamas High School	Clackamas, OR	North Clackamas SD 12	High	1,280	26.4:1
16	Adrienne C. Nelson High School	Happy Valley, OR	North Clackamas SD 12	High	1,536	27.2:1
17	Clackamas Middle College	Happy Valley, OR	North Clackamas SD 12	High	305	41.2:1

Page 1 of 1 · top 17 of 17 ranked. NCES + state assessment data, 2024-25.↓ Download full CSV

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DATA NOTICE

allk12 is independent and not affiliated with, endorsed by, or sponsored by NCES, the US Census Bureau, any state education agency or assessment program, or any other government agency. Source data is compiled from public records and provided "as is," without warranty of accuracy or completeness. You rely on it, and any analysis derived from it, at your own risk. See the full disclaimer.