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"Makuhari Kokusai Koko" Doesn't Exist — It Was Narita International High School All Along

Chiba, Japan

A public high school in Narita, Chiba, with General Studies and International Studies tracks — the legacy directory had both the name and the location wrong.

Researched by William Prep from published sources. Not yet verified by the school. — Last reviewed by William Prep: 2026-09-24

The legacy William Prep directory listed a school called "Makuhari Kokusai Koko / Chiba Prefectural," described as "Japanese public HS + International Studies Dept." Checking this session, no school by that name exists — anywhere in Chiba, or Japan.

At a Glance

Legacy Directory Name	Makuhari Kokusai Koko (does not exist)as of: 2026-09-24
Actual School	Chiba Prefectural Narita International High Schoolas of: 2026-09-24
Location	Narita-shi (not Makuhari)as of: 2026-09-24
Tracks	General Studies / International Studiesas of: 2026-09-24

How the Research Traced This Down

The "Makuhari" name pointed first to Chiba Prefectural Makuhari Sogo High School — but that school has only General and Nursing divisions, no international track at all. Searching instead for a school matching the legacy description ("public high school + international department") turned up Chiba Prefectural Narita International High School: a credit-based, two-semester public school with both General Studies and International Studies tracks, matching the description almost exactly. It's located in Narita-shi, not Makuhari (Mihama-ku, Chiba City).

William Prep’s Analysis

This kind of error likely isn't a simple typo — it looks like information from several similarly-named schools got blended together somewhere upstream. "[Place name] + International" is a common school-naming pattern across Japan, so this kind of mix-up isn't rare. This is a concrete demonstration of exactly why William Prep's research policy treats the legacy directory as a starting index to re-verify, not a source to copy forward.

Fees: The Standard Public High School Rate

The Chiba Prefectural Board of Education's own site states the standard rate for full-time prefectural high schools: a ¥5,650 entrance fee and ¥118,800/yr tuition (¥9,900/month), totalling ¥124,450 for the first year. Many families qualify for the national tuition support programme, which reduces or eliminates this out-of-pocket cost. Any International Studies-track extra costs (English materials etc.) weren't confirmed this session.

University Entrance Eligibility in Japan

School-accreditation route	Yes
Student-qualification route (IB, etc.)	No not publicly confirmedThe school does not appear to offer the IB or another curriculum that would trigger the individual-credential eligibility route.

Domestic university eligibility is assured via ordinary graduation as a public Article 1 school.

Fees & Estimated First-Year Cost

academic year: 2026

Entrance Fee	¥5,650
Tuition (annual)	¥118,800Most families qualify for the national tuition support programme, reducing or eliminating this out-of-pocket cost.
Estimated First-Year Total	¥124,450

Includes: enrolment, tuition — Excludes: Excludes materials, school trips, and other miscellaneous school-collected fees. Any International Studies-specific extra costs (English materials etc.) were not confirmed this session.

What Makes This School Distinctive

A case where the legacy directory's name and location were both wrong

"Makuhari Kokusai Koko" doesn't exist — the real school is Narita International, in Narita

The school's own site confirms the General/International track structure matches the legacy description.

Searching for a nonexistent school name means never finding the real one.

Admissions

Cycle

未確認 not publicly confirmed

What Japanese Families Should Know

Who Might Find This School a Good Fit

Might suit — Families near Narita seeking English-intensive education within the International Studies track

Might not suit — Families assuming a Makuhari (Chiba City, Mihama-ku) location — the school is actually in Narita

William Prep’s Analysis

Researching this one turned out to matter more than a single profile normally would. Finding a nonexistent school name sitting in the directory is direct proof that starting from scratch with existence checks — rather than migrating the old records as-is — was exactly the right call for this whole project.

Questions to Ask the School

1.Are there International Studies-track extra costs (English materials etc.)?
Why this matters: Not confirmed this session.
2.What is the International Studies track's admission competitiveness and expected English level?
Why this matters: Not confirmed this session.

Sources & Verification

TOP / 学校概要 — 千葉県立成田国際高等学校primary source · as of: 2026-09-24Fetched directly. Confirms two academic tracks: 普通科 (General Studies) and 国際科 (International Studies) — the International Studies department the legacy directory's "幕張国際高校" entry appears to actually refer to, under the wrong name and (implicitly) the wrong city. No school named "幕張国際高校" was found in any source consulted this session — 千葉県立幕張総合高等学校 (a real, nearby, differently-named school) has no international department at all.
県立高校の入学料・授業料等 — 千葉県教育委員会official source · as of: 2026-09-24Fetched directly. Full-time (全日制) prefectural high school standard rates: entrance fee (入学料) ¥5,650, tuition (授業料) ¥118,800/yr (¥9,900/month), set by prefectural ordinance. Most families qualify for the national tuition support programme (高等学校等就学支援金), which can cover this in full or in part.

Last reviewed by William Prep: 2026-09-24

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