Skip to content
S

Ardenwald Elementary School vs Sellwood Middle School

A head-to-head comparison of two schools in Oregon, United States, 2.1 km apart, using official American 2025 data. The better value in each row is highlighted.

MeasureArdenwald Elementary School
Milwaukie, Oregon
Sellwood Middle School
Portland, Oregon
Success Index (US)
41
Lower 50%
72
Top 25%
State rank#338 of 678#12 of 208
National rank#30977 of 50,301#2974 of 15,369
SectorPublicPublic
TypeElementaryMiddle
Year rangeGrades Kโ€“5Grades 6โ€“8
Students396575
Enrollment396575
Free/reduced-price lunch58.3%41.7%
Students per teacher16.520.5
Reading proficiency47%77%
Math proficiency37%66%
cityMilwaukiePortland
stateOregonOregon
Websiteโ€“โ€“

The verdict

  • โ€ขSellwood Middle School scores higher on the Success Index (US) (71.8 vs 41.4).
  • โ€ขSellwood Middle School does better on math proficiency (66% vs 37%).
  • โ€ขSellwood Middle School does better on reading proficiency (77% vs 47%).
  • โ€ขSellwood Middle School does better on community advantage (fewer free/reduced-price lunch) (41.7% vs 58.3%).
  • โ€ขArdenwald Elementary School does better on students per teacher (16.5 vs 20.5).
  • โ€ขSellwood Middle School is the larger school with 575 students compared with 396.

The Success Index (US) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.

Free academic assessment

Torn between two schools? Start with your child.

Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.

  • Personalised learning plan mapped to the Australian Curriculum
  • English & Maths from Kindergarten to Year 12
  • Flexible memberships, no lock-in contracts
  • Centres across NSW, VIC, QLD, WA, SA and ACT

No cost, no obligation. By submitting you agree to be contacted by Success Tutoring about your enquiry. See our privacy policy.

Frequently asked questions

Is Ardenwald Elementary School better than Sellwood Middle School?

On the Success Index (US), Sellwood Middle School ranks higher (71.8 vs 41.4 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.

How far apart are Ardenwald Elementary School and Sellwood Middle School?

About 2.1 km in a straight line, between Milwaukie and Portland in Oregon.

Which has the better Enrollment?

Ardenwald Elementary School: 396. Sellwood Middle School: 575. Students enrolled in the latest NCES directory year.

How do Ardenwald Elementary School and Sellwood Middle School rank in Oregon?

Ardenwald Elementary School is 338th of 678 and Sellwood Middle School is 12th of 208 among elementary schools in Oregon on the 2025 Success Index (US).