📊 What this ranking measures
Rankings are based on academic achievement — the share of students scoring proficient or above on state reading and math assessments (NCES EDFacts, 2021–22 for most districts), ranked against other districts in the same state — not on spending, district size, or staffing. See full methodology →
All 10 Rated Districts in Clackamas County, OR
Sorted by rating, then state percentile
| County Rank | District | District Office | Rating | State Percentile |
|---|---|---|---|---|
| #1 | Lake Oswego School District | Lake Oswego | 10/10 Excellent | 99th |
| #2 | West Linn School District 3J | Tualatin | 10/10 Excellent | 96th |
| #3 | Oregon Trail School District 46 | Sandy | 8/10 Good | 79th |
| #4 | North Clackamas School District 12 | Milwaukie | 7/10 Good | 68th |
| #5 | Canby School District 86 | Canby | 6/10 Average | 58th |
| #6 | Oregon City School District 62 | Oregon City | 6/10 Average | 55th |
| #7 | Gladstone School District 115 | Gladstone | 5/10 Average | 47th |
| #8 | Molalla River School District 35 | Molalla | 5/10 Average | 46th |
| #9 | Estacada School District 108 | Estacada | 5/10 Average | 44th |
| #10 | Colton School District 53 | Colton | 4/10 Below Average | 36th |
Best School Districts in Clackamas County, Oregon (2026)
This page lists the 10 public school districts headquartered in Clackamas County, Oregon that have a SchoolDistrictFinder rating, scored using EDFacts 2021–22 state assessment data. The county rank is simply their order here; the state percentile compares each district with every rated district in Oregon, which is how the 1–10 rating is set. Ratings are not comparable with districts in other states.
Districts are placed in the county of their NCES directory listing. A district's boundaries can cross county lines, and a home in Clackamas County may be served by a district headquartered next door — search your address or zip code to confirm.
Frequently Asked Questions
What is the best-rated school district in Clackamas County, Oregon? ▼
Among the 10 rated districts in Clackamas County, Oregon, the highest-rated is Lake Oswego School District (Lake Oswego), rated 10/10 (Excellent) and in the 99th percentile of Oregon districts on EDFacts 2021–22 reading and math proficiency.
How are these rankings calculated? ▼
Each district's rating comes from the share of its students scoring proficient or above on state reading and math assessments (EDFacts 2021–22), percentile-ranked against all rated districts in Oregon and converted to a 1–10 scale. Full methodology here.