North Wasco County SD 21 — Decoded Rankings
6 of 7 schools ranked · Updated 2026-07-26
District profile
- Total enrollment
- 1,807
- Free/reduced lunch
- 97.8%
- Avg SES index
- 33.0
- State
- OR
Schools in North Wasco County SD 21
Elementary / Middle Schools (5 ranked)
5 official · 1 unranked (N/A — not yet eligible)
| Chenowith Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #6 | #1 | ★★Outperforming Expectations | High | |
| Mosier Community SchoolCharterNorth Wasco County SD 21 | #2 | #2 | ★Strong by Both Measures | Medium | |
| Dry Hollow Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #1 | #3 | High Scores, Context Matters | High | |
| The Dalles Middle SchoolNeighborhoodNorth Wasco County SD 21 | #5 | #4 | Typical Profile | High | |
| Colonel Wright Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #3 | #6 | Typical Profile | High | |
| Unranked (1 not yet eligible for a rank) | |||||
| Innovations Academy | N/A | N/A | — | Not enough data to rank | |
High Schools (1 ranked)
| The Dalles High SchoolNeighborhoodNorth Wasco County SD 21 | #2 | #2HS | HS outcome | HS pool |
Story type breakdown
- 1Outperforming Expectations
- 1Strong by Both Measures
- 1High Scores, Context Matters
- 2Typical Profile
- 0Lower by Both Measures
How this district compares
District-level averages relative to the The Dalles, OR metro median.
| Measure | District avg | Metro median | Read |
|---|---|---|---|
| Avg achievement percentile (metro) | 60.0 | 50 | 10.0 points above the metro median |
| Avg decoded percentile (metro) | 63.3 | 50 | 13.3 points above the metro median |
| Avg rank shift (places gained after context) | 0.2 | 0 | Schools gain 0.2 places on average after context. |
Data & sources
- Assessment data
- 2024–25 school year
- NCES CCD vintage
- 2024
- Census ACS 5-year vintage
- 2020-2024
- Last updated
- July 26, 2026
- Methodology version
- 0.9.0
Source files (3)
- NCES CCD 2024 directory (Urban Institute) (accessed 2026-07-26)
- ACS 5-year 2020-2024 (accessed 2026-07-26)
- Oregon OSAS 2024-25 school-level results (accessed 2026-07-26)
SchoolDecoder publishes context-adjusted residuals, not causal estimates. Decoded Rank is one signal — not a verdict on teaching quality. Read about limitations →