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International School of Portland

United States, Portland

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The school at a glance
Instructs in Japanese, Mandarin, Spanish, English
Fees Fees not listed
Ages 3 - 11 years
Pupil numbers 400
Type Co-educational
Opened 1990
Bus Service No
Availability Not shared by this school
Academic offering
Curriculum IB (PYP)
Taught languages English, Japanese, Mandarin, Spanish
Typical class size 14
Strengths Languages, Academic Enrichment, Visual and Creative Arts
Clubs Academic and Intellectual, Arts and Creative, Cultural and Language
Stages Preschool, Kindergarten, Elementary
Introduction

International School of Portland is an independent private IB World School offering preschool through elementary education with language immersion in Spanish, Japanese, and Mandarin Chinese. The IB Primary Years Programme uses inquiry-based learning across core subjects through three immersion tracks - Spanish, Japanese, or Chinese, with English support as needed. The Spanish Track teaches the IB curriculum entirely in Spanish and culminates in a 5th-grade Capstone trip to a Spanish-speaking country, earning International Spanish Academy designation. The Japanese Track features native-level teachers and a Japanese-immersion IB curriculum, culminating in a 5th-grade Capstone Study Abroad trip to Japan; older students may complete Avant STAMP 4S and pursue Seals of Biliteracy. The Chinese Track is the longest-running immersion program in the region, with Mandarin-taught math, science, and social studies within the IB framework, culminating in a 5th-grade Capstone trip to a sister school in China. English instruction supports immersion learners and aligns with standards.

www.intlschool.org

2305 S Water Ave, Portland, OR 97201, United States

Vibes and Culture
The school has not added this information
The Essentials

International School of Portland has 400 pupils, typical class sizes of 14, instruction in Japanese, Mandarin, Spanish, English.

Location
2305 S Water Ave, Portland, OR 97201. The campus sits just south of downtown Portland on the edge of the South Waterfront District, an urban area with multiple play spaces and a garden. The six ISP buildings and four outdoor spaces are on private blocks between Naito Parkway and Harbor Drive. The campus is easily accessible by public transit and is integrated with the surrounding urban environment.

Stages
The school comprises Early Childhood and Elementary levels. Early Childhood includes PreK and LowK; Elementary covers Grades 1 through 5.

Type
Independent private IB World School offering preschool through elementary education. It provides language immersion in Chinese, Spanish, and Japanese.

Additional learning support
Student Support provides academic and social-emotional support with individualized plans designed by classroom teachers and specialists. The team collaborates with families and does not diagnose or label students; plans may be implemented for 4–6 weeks.

School day structure
School days begin at 8:00am with arrival allowed up to 30 minutes before. From 8:30am to noon, students participate in morning learning and activities. Lunch and outdoor play occur from noon to 12:45pm, followed by nap or quiet time for younger students; afternoons include art, PE, and music, with library visits.
Diving Deeper
The school has not added this information
Fees
Application & Enrollment Fees

- Application fee: USD 75 (one-time, non‑refundable) for new applicants.
- Enrollment (acceptance) deposit: USD 500 (one-time, non‑refundable) required with the enrollment contract for new students. Enrollment contracts for new students are mailed in February and the USD 500 deposit must be returned by the end of March to hold the place.

Tuition fees (annual) — main day-school programs

- K–5 (elementary, highest grade offered): USD 23,810 per year. Use of school payment plans (see Billing & Payment Terms) affects timing of payments but not the annual total.

- PreK / LowK: tuition varies by enrollment option (part‑week, full‑week, half‑day vs full‑day) and may be pro‑rated for students who start after the designated start date. The school's published tuition schedule describes those different PreK/LowK enrollment options and pro‑rating rules.

Tuition presented as payment-plan installments (example, K–5 at USD 23,810)

- Full Pay Plan: entire balance due by July 31 (Full Pay amount = USD 23,810).
- 60/40 Plan: 60% due by July 31 (USD 14,286) and remaining 40% due by January 1 (USD 9,524).
- 10‑Month Plan: 10 equal monthly installments starting August 1 (10 × USD 2,381).

(The installment amounts above are simple arithmetic based on the published annual tuition for K–5 and the school's three payment-plan options; they show how the annual charge is split under each available plan.)

Billing schedule and payment terms

- Payment plans available: Full Pay (entire balance by July 31), 60/40 (60% by July 31 and 40% by January 1), and a 10‑month monthly plan (10 equal payments beginning August 1). These plans determine due dates for tuition installments.
- Sibling discount: 10% off the least expensive program for a second child and 15% off the least expensive program for a third child. The discount is applied based on the Full Pay Plan rate for the selected enrollment option.
- PreK start and pro‑rating: PreK students must be age 3 at the start of the school year (with designated start dates) and tuition will be pro‑rated for PreK students who start after the designated start date. "Full day" and "half day" definitions are published for Early Childhood and affect tuition.

Boarding

- Boarding is not offered. The school is an independent preschool and elementary day school (PreK through Grade 5).

Other costs and common additional fees

- Lunches: billed separately; parents should plan to pay separately for student lunches.
- Durable school supplies and personal items: some durable supplies (items students keep and reuse) are not included and are billed or purchased separately by families; most consumable school supplies, many festival costumes, two class parties per year, student books, field trips and many classroom supplies are included in tuition.
- Optional after‑school classes and enrichment (Global Kids / After‑School Enrichment Clubs): these programs carry separate fees; refund and cancellation rules apply (for example, refunds for enrichment clubs are not issued after billing one week prior to the start; Global Kids refund/cancellation policies and non‑refundable reservation fees are published with those program pages).
- School spirit shop / uniform items: the school operates a spirit shop; parents purchase spirit‑wear and other optional apparel items separately. Most day‑to‑day classroom supplies are provided.

Refund information (applicable items)

- Enrollment deposit refund: the USD 500 enrollment deposit is non‑refundable when required with acceptance/enrollment contracts.
- Pro‑rated PreK tuition: PreK tuition may be pro‑rated for students who start after the designated start date (the school publishes its pro‑ration rules).
- After‑school / club refunds: enrichment club billing carries a one‑week prior cutoff; refunds are not issued after that billing point. Global Kids program cancellations made more than seven calendar days before a program date may be eligible for a refund (minus any non‑refundable reservation fee) per the Global Kids policies.

Fee payment options (how families commonly pay)

- The school uses FACTS for tuition‑support (financial aid) applications, and FACTS is widely used by independent schools to manage billing and payment plans. FACTS supports ACH (automatic bank withdrawal) and credit/debit card payments and can administer payment plans, so families should expect to be able to use ACH or credit/debit card payment methods through FACTS where the school uses that service. This is an operational inference based on the school's use of FACTS for financial‑aid processing and FACTS' payment capabilities.

- Practical payment methods you will encounter when completing enrollment and bills typically include: automated bank draft (ACH), credit/debit card (convenience fees may apply through payment processors), and paper check where accepted; the school's billing system and FACTS (if used for tuition billing) will list the exact available methods and any processing fees.

Summary (key practical points for a parent)

- Expect an application fee (USD 75) and a required non‑refundable enrollment deposit (USD 500) to hold an offered place.
- K–5 annual tuition is USD 23,810; PreK/LowK tuition varies by schedule (part‑week/full‑week, half/full day) and may be pro‑rated. Payment timing is handled by one of three plans (Full Pay by July 31, 60/40 with dates, or a 10‑month plan starting August 1). Sibling discounts are available.
- Lunch, some durable supplies, and optional after‑school or enrichment programs are billed separately; many consumable supplies, books, field trips, and the 5th‑grade capstone trip are included in tuition. Refund rules differ by item (enrollment deposit is non‑refundable; after‑school program refunds follow the program's policy).

If you would like the exact published line‑by‑line tuition schedule (for example PreK 2‑day/3‑day/5‑day half vs full‑day rates) or any itemized program fees, those are provided in the school's published tuition schedule and program pages.
Academics

International School of Portland teaches IB (PYP) for students aged 3 to 11.

Curriculum
The International School of Portland offers the International Baccalaureate Primary Years Programme for Grades 1–5, with inquiry-based learning across math, science, social studies, and language arts. Instruction is delivered through one of three immersion tracks—Spanish, Japanese, or Chinese (Mandarin)—with English language instruction integrated. The Spanish Track teaches the IB curriculum entirely in Spanish and culminates in a 5th-grade Capstone trip to a Spanish-speaking country, and the program includes International Spanish Academy designation. The Japanese Track is the premier Japanese language immersion program in the United States, with native-level teachers and a full Japanese immersion IB curriculum; the track culminates in a 5th-grade Capstone Study Abroad trip to Japan, and older students complete the Avant STAMP 4SE and may earn Seals of Biliteracy. The Chinese Track is the longest-running Chinese immersion program in the Pacific Northwest, with Mandarin taught math, science, and social studies within the IB framework; the track culminates in a 5th-grade Capstone trip to a sister school in China. ISP's English instruction supports immersion learners, and the curriculum aligns with Oregon Standards for Science, National Social Studies Standards, and Common Core for Math within IB units.

Student Teacher Ratio
No more than 20 students per class (our average class size is even smaller).

Exam Results
MAP (Measures of Academic Progress) assessments are used for 2nd–5th graders to measure English Reading, Mathematics, and English Language Usage, administered by NWEA. ISP provides a chart comparing MAP results with Oregon's OSAS and National NAEP standards, illustrating relative performance. Math performance is notable because math is taught in the track language and the results are presented with English-language testing. By 3rd grade, the vast majority of ISP students catch up to their English-only peers, and by 5th grade many surpass them.
Wellbeing
The school has not added this information
Parent Experience
The school has not added this information
Facilities
The school has not added this information
Extra-Curricular Activities
The school has not added this information
Languages
The school has not added this information
Reputation
The school has not added this information
Admissions

Admissions
01. Campus & Classroom Tours: In-person and virtual tours are available. Self-scheduling is available through MySchool App. If you do not yet have an account for the admissions portal, you can create one to access tours and admissions materials. The Director of Enrollment Management is available to answer questions by email or phone. 02. Events & Open Houses: ISP informational events, Open Houses, and sample classes are scheduled for the school year. The Spring Open House occurs on Friday, April 24, with two sessions (9:00 AM and 10:15 AM); registration is via MySchool App. You do not need to know the immersion language to attend a sample class. 03. Request More Information: Please submit an inquiry, and ISP will provide access to admissions materials and more information about the school. 04. Apply to ISP: Applications begin in September of the year prior to the student's start date. When all places are reserved, applicants are placed on a waitlist. Admission offers are first-come, first-served and do not consider financial aid applications. Enrollment contracts for new students are mailed in February and must be returned with a $500 non-refundable tuition deposit by the end of March; if not returned, offers become invalid and spaces are offered to wait-listed families. Applications received after April and during the school year are admitted if space is available. Application Instructions: MySchool App handles online inquiries, tours, admissions events, and applications; create a MySchool App account using an email you will access throughout the admissions season.

Scholarships
Tuition Support: Tuition support is available on the basis of demonstrated need and is provided in the form of grants and tuition discounts. It is based entirely on a family's ability to pay for tuition—no other criteria is used. Families must re-apply each year for continued support. Tuition support applies to students in all grades and plays no role in admission offers. Tuition support uses FACTS to receive and evaluate applications; the priority deadline for the 2026-27 school year is February 28. In 2023–24, the average aid recipient's household income was over $100,000, and an average award covered roughly one third of tuition. The Endowment supports need-based scholarships, including the Slater Scholarship Fund and the Greeney Family Fund for Japanese Track Scholarships, among others.

Waitlist
Waitlist: If all spaces are reserved, additional applicants are placed on a waitlist. Admission offers are made strictly on a first-come, first-served basis and do not take into account a family's financial aid application. Applications received after April and during the school year will be offered admission if space is available.
School Events
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