Portland-Vancouver-Hillsboro, OR-WA · OR
Riverdale SD 51J — Decoded Rankings
2 of 2 schools ranked · Updated 2026-05-29
District profile
- Total enrollment
- 400
- Free/reduced lunch
- —
- Avg SES index
- 98.4
- State
- OR
Schools in Riverdale SD 51J
Elementary / Middle Schools (1 ranked)
| Riverdale Grade SchoolEnrollment unknownRiverdale SD 51J | #7 | #3 | ★Strong by Both Measures | Medium |
High Schools (1 ranked)
| Riverdale High SchoolEnrollment unknownRiverdale SD 51J | #1 | #4HS | HS outcome | HS pool |
Story type breakdown
- 0Outperforming Expectations
- 1Strong by Both Measures
- 0High Scores, Context Matters
- 0Typical Profile
- 0Lower by Both Measures
How this district compares
District-level averages relative to the Portland-Vancouver-Hillsboro, OR-WA metro median.
| Measure | District avg | Metro median | Read |
|---|---|---|---|
| Avg achievement percentile (metro) | 98.7 | 50 | 48.7 points above the metro median |
| Avg decoded percentile (metro) | 99.1 | 50 | 49.1 points above the metro median |
| Avg rank shift (places gained after context) | 4.0 | 0 | Schools gain 4.0 places on average after context. |
Data & sources
- Assessment data
- 2023–24 school year
- NCES CCD vintage
- 2023
- Census ACS 5-year vintage
- 2020-2024
- Last updated
- May 29, 2026
- Methodology version
- 0.2.0
SchoolDecoder publishes context-adjusted residuals, not causal estimates. Decoded Rank is one signal — not a verdict on teaching quality. Read about limitations →