Portland-Vancouver-Hillsboro, OR-WA · OR

Scappoose SD 1J — Decoded Rankings

4 of 8 schools ranked · Updated 2026-09-04

District profile

Total enrollment
1,272
Free/reduced lunch
37.8%
Avg SES index
72.1
State
OR

Schools in Scappoose SD 1J

Elementary / Middle Schools (4 ranked)

Schools sortable by achievement rank, decoded rank, rank shift, story type, and confidence.
Rating
Grant Watts Elementary SchoolNeighborhoodScappoose SD 1J#113#132 (OR)plausibly #81–298#66 (Portland-Vancouver-Hillsboro metro — Oregon side)≈ tied with nextMedium
Sauvie Island SchoolCharterScappoose SD 1J#81#133 (OR)plausibly #48–311#67 (Portland-Vancouver-Hillsboro metro — Oregon side)≈ tied with nextHigh
Otto Petersen Elementary SchoolNeighborhoodScappoose SD 1J#241#142 (OR)plausibly #69–264#71 (Portland-Vancouver-Hillsboro metro — Oregon side)Medium
Scappoose Middle SchoolNeighborhoodScappoose SD 1J#316#404 (OR)plausibly #117–556#207 (Portland-Vancouver-Hillsboro metro — Oregon side)Medium

Rows marked ≈ are statistically tied with the row below them: on the current data the joint simulation gives the upper school less than a 65% chance of ranking above the lower one. Ties are between adjacent rows only.

Story type breakdown

  • 1
  • 2
  • 0
  • 1
  • 0

How this district compares

District-level averages relative to the Portland-Vancouver-Hillsboro, OR-WA metro median.

MeasureDistrict avgMetro medianRead
Avg achievement percentile (metro)61.25011.2 points above the metro median
Avg decoded percentile (metro)69.65019.6 points above the metro median
Avg rank shift (places gained after context)28.30Schools gain 28.3 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
September 4, 2026
Methodology version
0.14.0
Source files (3)

SchoolDecoder publishes context-adjusted residuals, not causal estimates. Decoded Rank is one signal — not a verdict on teaching quality. Read about limitations →