For over 30 years, the International School of Portland (ISP) has provided a warm, multicultural environment where children are fully immersed in Spanish, Japanese or Chinese from preschool through 5th grade.
Its small classes and inquiry-based, International Baccalaureate curriculum enable children to acquire language and culture as they learn to pursue knowledge beyond the classroom and throughout life.
ISP is Portland's first International Baccalaureate elementary school.  It was founded in 1990 and today educates approximately 400 students from age 3 through 5th grade.

Quick Stats (2022-23)

Top Rankings

International School of Portland ranks among the top 20% of private schools in Oregon for:


School Overview

Religious Affiliation
Grades Offered
Grades Prekindergarten-5
ADD/ADHD Support
Year Founded
Summer School Offered
Summer Program Details

Student Body

Total Students
385 students
Student Body Type
% Students of Color
State avg.: 26%
Students by Grade
International School of Portland Student By Grade

Academics and Faculty

Total Classroom Teachers
61 teachers
Student : Teacher Ratio
National avg.: 13:1
% Faculty w/Advanced Degree
Average Class Size
13 students
Classroom Dress Code

Tuition and Acceptance Rate

Admission Deadline
None / Rolling
Yearly Tuition Cost
Tuition Notes
Tuition varies according to payment plan and schedule. Please see for details.
% on Financial Aid
Average Financial Aid Grant
Acceptance Rate
National avg.: 85%
Admissions Director
Jan Williams
Admissions Associate
Sarah Loepp

School Notes

  • For our children, a world of possibilities awaits. If we are to send them out to explore beyond the bounds of our neighborhoods, we must prepare them for the journey-mentally, emotionally, and linguistically. For a child capable of learning a language and absorbing a culture beyond their own will thrive anywhere they go. So we've created a school where tomorrow's young explorers can be immersed in a language and comprehend cultures unlike their own. 
  • Welcome to the International Schoolof Portland. For over three decades, we've been helping to guide and prepare today's generation of explorers for the challenges of tomorrow.
  • But we didn't stop there. Exploration, leadership, and distinction require more than language proficiency. They require skill and an inclination to think critically, make connections, and challenge oneself to continually do better. So we chose a curriculum and recruited teachers that help young minds do just that.
Source: Verified school update

Frequently Asked Questions

How much does International School of Portland cost?

International School of Portland's tuition is approximately $20,990 for private students.

What is the acceptance rate of International School of Portland?

The acceptance rate of International School of Portland is 90%, which is higher than the national average of 88%.

Does International School of Portland offer a summer program?

Yes, International School of Portland offers a summer program. Visit their summer school page for more information.

What is International School of Portland's ranking?

International School of Portland ranks among the top 20% of private schools in Oregon for: Largest student body.

When is the application deadline for International School of Portland?

The application deadline for International School of Portland is rolling (applications are reviewed as they are received year-round).

School Reviews

  5.00 out of 5  (4 reviews)
The teachers and the programs at TIS are incredible. The way students develop intellectually, emotionally, and socially is amazing to see. I feel like a TIS education has really provided lifelong benefits for my kids. I am already seeing this in them. TIS has been a great experience.
- Posted by
When looking for an elementary school, we toured many schools and spoke to as many teachers as we could. My partner and I were blown away by the kids and teachers at 'Tis. Our child showed no interest in learning a language so we were concerned about our child's transition but we could not have been more pleasantly surprised with how it went. Thank you 'Tis teachers and staff we are looking forward to the next 5 years!
- Posted by
My daughter has attended TIS for three years, Low-K through 1st grade in Spanish. We definitely plan to keep her there through 5th grade. The teachers and staff are all very nurturing, which is the main criterion we wanted from an early learning school. The curriculum is outstanding both the language-based and the English, and the kids also get excellent art, music and PE instruction as well. We`ve been very happy with TIS; my only complaint is that parking and driving in and out of the location can be quite challenging.
- Posted by
TIS is unique in the Portland area for having 3 immersion languages and IBPYP. In fact, it is one of a handful of immersion private schools in the US to offer PYP. The teachers in the languages are all native speakers, so our child has been exposed to several different cultures and dialects and her Spanish is so authentic that native speakers are surprised to learn she lives with two non-speakers. The academics are excellent, with teachers emphasizing STEM through projects and interactive education. Their commitment to diversity and inclusion is important, although limited by Portland demographics, and the Learner Profiles and teachers emphasize cultural diversity through the units of inquiry, field trips, guest speakers and homework assignments. As an institution TIS impresses me most with its commitment to visibility and communication with parents. When a new situation or problem arises, the administration does not ignore it or pretend to have all the answers; they acknowledge the issue, gather community input, and formulate a plan that can accommodate the faculty, families and community while remaining true to the schools' values.
- Posted by

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Quick Stats (2022-23)

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Did You Know?

The average private school tuition in Portland, OR is $11,409 for elementary schools and $14,763 for high schools (read more about average private school tuition across the country).
The average acceptance rate in Portland, OR is 82% (read more about average acceptance rates across the country).

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