North Wasco County SD 21 — Decoded Rankings
6 of 7 schools ranked · Updated 2026-07-26
District profile
- Total enrollment
- 1,829
- Free/reduced lunch
- 67.8%
- Avg SES index
- 37.1
- State
- OR
Schools in North Wasco County SD 21
Elementary / Middle Schools (5 ranked)
| Chenowith Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #5 | #1 | ★★Outperforming Expectations | Medium | |
| Mosier Community SchoolCharterNorth Wasco County SD 21 | #3 | #2 | ★★Outperforming Expectations | Medium | |
| Dry Hollow Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #2 | #3 | High Scores, Context Matters | High | |
| The Dalles Middle SchoolNeighborhoodNorth Wasco County SD 21 | #4 | #5 | Typical Profile | High | |
| Colonel Wright Elementary SchoolNeighborhoodNorth Wasco County SD 21 | #6 | #6 | Lower by Both Measures | High |
High Schools (1 ranked)
| The Dalles High SchoolNeighborhoodNorth Wasco County SD 21 | #1 | #1HS | HS outcome | HS pool |
Story type breakdown
- 2Outperforming Expectations
- 0Strong by Both Measures
- 1High Scores, Context Matters
- 1Typical Profile
- 1Lower 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) | 50.0 | 50 | 0.0 points above the metro median |
| Avg decoded percentile (metro) | 60.0 | 50 | 10.0 points above the metro median |
| Avg rank shift (places gained after context) | 0.6 | 0 | Schools gain 0.6 places on average after context. |
Data & sources
- Assessment data
- 2022–23 school year
- NCES CCD vintage
- 2022
- Census ACS 5-year vintage
- 2020-2024
- Last updated
- July 26, 2026
- Methodology version
- 0.9.0
Source files (3)
- NCES CCD 2022 directory (Urban Institute) (accessed 2026-07-26)
- ACS 5-year 2020-2024 (accessed 2026-07-26)
- Oregon OSAS 2022-23 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 →