Regional School Unit 21 operates 15 schools (grades PK–12). Individual school names, addresses, and attendance zone boundaries are available directly from the district.
| Metric | Regional School Unit 21 | National Average | Comparison |
|---|---|---|---|
| Student Enrollment | 7,500 | 3,700 | ↑ Larger than avg |
| Number of Schools | 15 | 6 | Varies by district |
| Per-Pupil Spending | $15,500/yr (est.) | $13,700/yr | ≈ Near avg |
| District Type | Urban | Public District | — |
| Overall Rating | 9/10 — Excellent | — | Near average |
- Mildred L Day School — Grades K–5 · 224 students
- Kennebunk Elementary School — Grades PK–2 · 378 students
- Kennebunk High School — Grades 9–12 · 683 students
- Middle School of the Kennebunks — Grades 6–8 · 470 students
- Kennebunkport Consolidated Sch — Grades K–5 · 199 students
- Sea Road School — Grades 3–5 · 308 students
- 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
- Kennebunkport High School — Grades 9–12 · 912 students
- Deering High School — Grades 9–12 · 850 students
- Casco Bay High School — Grades 9–12 · 379 students
About Regional School Unit 21
Families in zip code 04046 (Kennebunkport, Maine) are assigned to Regional School Unit 21 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 21 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 6 schools serving grades K–12, Regional School Unit 21 qualifies as a mid-sized district serving students from K–12. The district enrolls approximately 2,425 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 9/10 Rating
With a rating of 9/10 (top-tier), Regional School Unit 21 ranks among Maine’s top-tier-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 21 ranks among the highest-performing public school districts in Maine on state assessments, with reading and math proficiency rates in roughly the top 10–20% statewide. Homes in and around zip code 04046 often carry a measurable premium relative to neighboring areas served by lower-rated districts. Families moving here for academic strength will find a district whose students test well above the state norm. Even within top-rated districts, individual school performance varies — confirm your specific school assignments directly with the district.
Enrollment for Families in Zip Code 04046
Children in zip code 04046 are assigned to Regional School Unit 21 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 04046, 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 21 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 Kennebunkport
For families considering a purchase in the Kennebunkport area, district assignment matters financially. Because Regional School Unit 21 serves zip code 04046, homes in and around zip code 04046 often carry a measurable premium over comparable properties in adjacent lower-rated districts. 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 21 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 04046.
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 21 before making any housing or enrollment decision based on zip code 04046 data.