Hermiston-Pendleton, OR · OR

Morrow SD 1 — Decoded Rankings

6 of 9 schools ranked · Updated 2026-09-04

District profile

Total enrollment
1,816
Free/reduced lunch
70.0%
Avg SES index
33.3
State
OR

Schools in Morrow SD 1

Elementary / Middle Schools (6 ranked)

Schools sortable by achievement rank, decoded rank, rank shift, story type, and confidence.
Rating
Irrigon Elementary SchoolNeighborhoodMorrow SD 1#397#53 (OR)plausibly #24–216#3 (Hermiston-Pendleton metro)High
Windy River Elementary SchoolNeighborhoodMorrow SD 1#634#109 (OR)plausibly #67–249#7 (Hermiston-Pendleton metro)High
Riverside Junior/Senior High SchoolNeighborhoodMorrow SD 1#578#196 (OR)plausibly #81–394#12 (Hermiston-Pendleton metro)Also HS #43High
A C Houghton Elementary SchoolNeighborhoodMorrow SD 1#543#445 (OR)plausibly #245–560#21 (Hermiston-Pendleton metro)≈ tied with nextMedium
Sam Boardman Elementary SchoolNeighborhoodMorrow SD 1#611#459 (OR)plausibly #285–595#22 (Hermiston-Pendleton metro)≈ tied with nextMedium
Irrigon Junior/Senior High SchoolNeighborhoodMorrow SD 1#595#498 (OR)plausibly #276–651#24 (Hermiston-Pendleton metro)Also HS #74Medium

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.

High Schools (2 ranked)

Schools sortable by achievement rank, decoded rank, rank shift, story type, and confidence.
Rating
Riverside Junior/Senior High SchoolNeighborhoodMorrow SD 1#84#43 (OR)HS#2 (Hermiston-Pendleton metro)HS outcomeMedium
Irrigon Junior/Senior High SchoolNeighborhoodMorrow SD 1#79#74 (OR)HS#5 (Hermiston-Pendleton metro)HS outcomeLow

Story type breakdown

  • 3
  • 0
  • 0
  • 0
  • 3

How this district compares

District-level averages relative to the Hermiston-Pendleton, OR metro median.

MeasureDistrict avgMetro medianRead
Avg achievement percentile (metro)28.45021.6 points below the metro median
Avg decoded percentile (metro)48.8501.2 points below the metro median
Avg rank shift (places gained after context)5.50Schools gain 5.5 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
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 →