📊 Data: NCES CCD 2024–2025·🔄 Updated: May 2026·Editorial standards
📍 South China, ME · Cumberland County

School District for
Zip Code 04358

Regional School Unit 18 · Grades Pre-K – 12th

5
out of 10 Rating Average
Based on NCES 2024-2025 data
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School District · South China, ME
Regional School Unit 18
📍 Cumberland County, ME · Zip Code 04358
5/10
Rating
2,782
Students
8
Schools
Pre-K – 12th
Grade Span
Average Maine's largest city. Diverse urban district. Per-pupil spending: $17,000/year.
District Contact & InformationSource: NCES 2024–2025
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Grades Served
Pre-K – 12th
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District Phone
🌐
District Website
📍
District Office
41 Heath Street, Oakland, ME 04963
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District Type
Urban
Schools in This District Source: NCES 2024–2025

Regional School Unit 18 operates 15 schools (grades PK–12). Individual school names, addresses, and attendance zone boundaries are available directly from the district.

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To find your child’s assigned school, contact Not listed directly. School boundaries are updated annually and may vary by home address within the zip code.
District Statisticsvs. National Average
MetricRegional School Unit 18National AverageComparison
Student Enrollment7,5003,700↑ Larger than avg
Number of Schools156Varies by district
Per-Pupil Spending$15,500/yr (est.)$13,700/yr≈ Near avg
District TypeUrbanPublic District
Overall Rating5/10 — AverageNear average
🌏 District Map Boundary from U.S. Census TIGER
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Always verify before deciding: Contact Regional School Unit 18 directly to confirm your exact school assignment. Boundaries change annually and open enrollment may alter your options.
Frequently Asked Questions
What school district is zip code 04358?
Zip code 04358 is served by Regional School Unit 18 in South China, ME (Cumberland County). The district serves approximately 7,500 students across 15 schools and has an overall rating of 5/10 (Average).
What schools are in zip code 04358?
Zip code 04358 is served by Regional School Unit 18. Specific school assignment depends on your exact home address — see the full list of schools in this district on this page, and confirm directly with the district office.
Is Regional School Unit 18 a good school district?
Regional School Unit 18 has an overall rating of 5/10 (Average). Maine's largest city. Diverse urban district. The district has a student-teacher ratio of 13:1 and spends approximately $17,000 per pupil annually.
How do I verify my school assignment for zip code 04358?
Contact Regional School Unit 18 directly to confirm your specific school assignment. While our data is based on NCES 2024 records, school boundaries can change and some districts have open enrollment policies. Always verify before making enrollment or real estate decisions.
What grades does Regional School Unit 18 serve?
Regional School Unit 18 serves students from Pre-K – 12th. The district operates schools at multiple levels to serve all students in zip code 04358. Contact the district directly to confirm grade configurations at specific schools.
How do I contact Regional School Unit 18?
You can reach Regional School Unit 18 via phone: (207)465-7384 or website: www.portlandschools.org. The district office can help with school assignment questions, enrollment, registration, and general inquiries about programs and services in zip code 04358.
Is Regional School Unit 18 a public school district?
Regional School Unit 18 is classified as a urban. Public school districts are funded by local, state, and federal tax dollars and are open to all students residing within district boundaries. Enrollment is generally free of charge, and students are assigned to schools based on home address. To confirm eligibility and enrollment requirements for zip code 04358, contact Regional School Unit 18 directly.
What grades does Regional School Unit 18 serve?
Regional School Unit 18 serves students from Pre-K – 12th. The district operates schools at multiple levels to serve all students in zip code 04358. Contact the district directly to confirm grade configurations at specific schools.
How do I contact Regional School Unit 18?
You can reach Regional School Unit 18 via phone: (207)465-7384 or website: www.portlandschools.org. The district office can help with school assignment questions, enrollment, registration, and general inquiries about programs and services in zip code 04358.
Is Regional School Unit 18 a public school district?
Regional School Unit 18 is classified as a urban. Public school districts are funded by local, state, and federal tax dollars and are open to all students residing within district boundaries. Enrollment is generally free of charge, and students are assigned to schools based on home address. To confirm eligibility and enrollment requirements for zip code 04358, contact Regional School Unit 18 directly.
Schools in Regional School Unit 188 schools · NCES 2024
🏫 Elementary Schools (10)
  • China Middle School — Grades 5–8 · 170 students
  • Messalonskee Middle School — Grades 6–8 · 495 students
  • Belgrade Central School — Grades PK–5 · 236 students
  • James H Bean School — Grades PK–5 · 300 students
  • Williams Elementary School — Grades 3–5 · 222 students
  • Messalonskee High School — Grades 9–12 · 695 students
  • Ralph M Atwood Primary School — Grades PK–2 · 194 students
  • China Primary School — Grades PK–4 · 242 students
📚 Middle Schools (3)
  • Lyman Moore Middle School — Grades 6–8 · 470 students
  • King Middle School — Grades 6–8 · 434 students
  • Lincoln Middle School — Grades 6–8 · 382 students
🎓 High Schools (3)
  • South China High School — Grades 9–12 · 912 students
  • Deering High School — Grades 9–12 · 850 students
  • Casco Bay High School — Grades 9–12 · 379 students
Source: NCES Common Core of Data 2024 via Urban Institute. School assignment within a zip code depends on your exact address — confirm with the district.

About Regional School Unit 18

Families in zip code 04358 (South China, Maine) are assigned to Regional School Unit 18 for public education through 12. This overview covers the district’s funding levels, scale, rating, and what to expect from the enrollment process if you’re moving to or within this zip code.

Funding and Resources

According to NCES 2024–2025, Regional School Unit 18 spends approximately $15,500 per student per year, placing it near the Maine state average of approximately $15,500 and above the national average nationally (U.S. average: $13,700/year). Above-average spending generally translates to more instructional resources per student, stronger program variety at the middle and high school levels, and better-maintained facilities. Per-pupil spending directly affects teacher compensation, class sizes, elective course offerings, technology access, and the depth of student support services — making it one of the most meaningful structural indicators of district capacity.

District Scale and Program Breadth

At 8 schools serving grades K–12, Regional School Unit 18 qualifies as a mid-sized district serving students from K–12. The district enrolls approximately 2,782 students in total. Mid-sized districts strike a balance between community-scale relationships and sufficient program breadth. Most offer core academic tracks, basic extracurricular programs, and adequate student support services.

Understanding the 5/10 Rating

With a rating of 5/10 (average), Regional School Unit 18 ranks among Maine’s average-rated school systems. Our ratings are based on state assessment results — the share of students scoring proficient or above in reading and math, as reported in the U.S. Department of Education’s EDFacts collection. We average each district’s reading and math proficiency, then rank it against other districts in the same state to produce a 1–10 score. Because Maine is compared only against itself, the rating reflects how this district performs relative to its in-state peers.

Regional School Unit 18 falls near the middle of Maine on state assessment results, with reading and math proficiency close to the state median. Average-rated districts provide foundational public education, and many families find they deliver solid day-to-day learning — particularly when parents stay engaged. If you're considering this area, look beyond the overall rating: visit schools, talk to current parents, and research the specific school your child would attend. Average districts often have individual schools that significantly outperform the district mean.

Enrollment for Families in Zip Code 04358

Children in zip code 04358 are assigned to Regional School Unit 18 for public school enrollment, covering grades K–12. School assignments are address-specific — your elementary, middle, and high school placements depend on your exact street address within zip code 04358, not just your neighborhood. Two homes on opposite ends of the same zip code may be assigned to different schools within the same district.

To confirm your specific school assignments, contact Regional School Unit 18 at the number listed on the district website or visit the district’s official website. Typical enrollment documents include proof of address, a government-issued birth certificate, immunization records, and any existing school records or IEP documentation. If your child has an IEP or 504 plan, bring that documentation to enrollment — Maine districts are required to continue services within a reasonable period. Fall enrollment windows typically open in late winter or early spring; contact the district for exact dates and required steps.

School Districts and Home Values in South China

For families considering a purchase in the South China area, district assignment matters financially. Because Regional School Unit 18 serves zip code 04358, buyers should factor school district quality into their overall evaluation of homes in zip code 04358. District boundaries are address-specific — verify the exact district assignment for any property you’re seriously considering rather than assuming based on the neighborhood. A single block can place two adjacent homes in different districts with different ratings and different annual property tax implications.

Use the property tax estimator on this page to calculate estimated annual tax obligations based on your target purchase price. In Maine, property taxes are a primary funding source for public schools — your tax payments directly support Regional School Unit 18 programs and staff. Understanding both district quality and the associated tax burden is essential financial due diligence before committing to any home in zip code 04358.

Data Sources and Accuracy

All district information on this page is sourced from the NCES Common Core of Data (CCD) 2024–2025, the U.S. Department of Education’s annual census of all public school districts — the same dataset used by researchers, journalists, and policymakers to analyze American public education. District boundaries, school assignments, phone numbers, and per-pupil expenditure figures are updated annually when NCES publishes new data, typically in spring. Always verify your specific school assignment and enrollment requirements directly with Regional School Unit 18 before making any housing or enrollment decision based on zip code 04358 data.

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District at a Glance
Overall Rating5/10
GradeAverage
Grades ServedPre-K – 12th
District TypeUrban
Total Students~7,500
Total Schools15
Per-Pupil Spending$15,500/yr (est.)
Phone(207)465-7384
Data SourceNCES 2024
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