📊 Data: NCES CCD 2024–2025·🔄 Updated: August 2026·Editorial standards
📍 Eddington, ME · Penobscot County

School Administrative District 63

Grades Pre-K – 12th · 557 students · 3 schools · 1 zip code

8
out of 10 Rating Good
State reading & math proficiency · 72nd percentile among Maine districts. Ranked within Maine only — not comparable across states.
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School District · Maine
School Administrative District 63
📍 Eddington, ME · Penobscot County · NCES LEAID 2314470
8/10
Rating
557
Students
3
Schools
Pre-K – 12th
Grade Span
1
Zip Codes

District Contact & Information

Source: NCES CCD 2024–25
📚
Grades Served
Pre-K – 12th
📞
District Phone
🌐
District Website
📍
District Mailing Address
202 Kidder Hill Road, Holden, ME 04429
🎓
Enrollment
557 students
🏫
Schools
3
🏷
NCES District ID (LEAID)
2314470
🏛
District Type
Public School District

Schools in School Administrative District 63

3 schools listed
SchoolLevelGradesStudentsCity
Eddington SchoolElementaryPre-K – 1st116Eddington
Holden SchoolElementary2nd – 4th149Holden
Holbrook SchoolMiddle5th – 8th178Holden

Zip Codes Served by School Administrative District 63

1 zip code
Zip CodeCityCountyState
04428EddingtonPenobscot CountyME

Frequently Asked Questions

What zip codes are in School Administrative District 63?
School Administrative District 63 serves 1 zip code: 04428. Zip codes and district boundaries do not line up exactly, so confirm your exact address with the district office before you rely on an assignment.
How is School Administrative District 63 rated?
School Administrative District 63 has an overall rating of 8 out of 10 (Good), based on the share of students proficient in reading and math on state assessments (NCES EDFacts). That places it in the 72nd percentile among Maine school districts. Ratings are percentile-ranked within Maine only and are not comparable across states.
How many students attend School Administrative District 63?
The NCES Common Core of Data directory reports enrollment of 557 students across 3 schools for School Administrative District 63.
What grades does School Administrative District 63 serve?
School Administrative District 63 is listed in the NCES directory as serving grades Pre-K – 12th.
What schools are in School Administrative District 63?
NCES lists 3 schools operating under School Administrative District 63: 2 elementary, 1 middle. Each school's grade span, enrollment and city are listed on this page. Attendance zones are set by the district and a school on this list is not necessarily the one your address is assigned to.
How do I contact School Administrative District 63?
You can reach School Administrative District 63 by phone at (207)843-7851 or online at www.rsu63.org or by mail at 202 Kidder Hill Road, Holden, ME 04429. Contact details come from the NCES district directory and are the best way to confirm which school your address is assigned to.

About School Administrative District 63

School Administrative District 63 is a public school district serving 1 zip code in Maine, primarily in Penobscot County. It carries an overall rating of 8/10 (Good), the 72nd percentile among Maine districts. That rating reflects the share of students proficient in reading and math on state assessments (NCES EDFacts, 2021–22 for most districts with a 2017–18 fallback for the rest) and is ranked only against other Maine districts — scores are not comparable between states. Directory details on this page come from the NCES Common Core of Data, 2024–25.

Schools in this district

NCES lists 3 schools operating under School Administrative District 63 — 2 elementary and 1 middle. The largest by enrollment is Holbrook School with 178 students. School-level enrollment comes from the NCES Common Core of Data school directory; a school with no reported enrollment is shown with a dash rather than a zero.

Checking your own address

District boundaries are address-specific and do not follow zip code lines exactly — a single zip code can be split between two or more districts. Use the zip codes listed above as a starting point, then confirm your assignment with the district office at (207)843-7851 before making a housing decision.