High Schools in Regional School Unit 18

Summary:

Regional School Unit 18 in Maine is home to one high school, Messalonskee High School, which serves grades 9-12. The school has consistently ranked in the top half of Maine high schools, earning a 4-star rating from SchoolDigger in the 2022-2023 school year and boasting a 4-year graduation rate of 87.8% in 2023-2024, above the state average.

Messalonskee High School's performance is strong, with proficiency rates in English Language Arts (63.03% in 2024-2025) close to the state average, though its Mathematics (46.67% in 2024-2025) and Science (31.03%) proficiency rates lag behind. The school serves a diverse student population, with 25.56% of students receiving free or reduced-price lunch, but faces a higher-than-average chronic absenteeism rate of 23.4%.

Overall, Regional School Unit 18's sole high school, Messalonskee, is a consistently high-performing institution, ranking among the top schools in Maine, though it faces some challenges in mathematics and science proficiency as well as chronic absenteeism that the district may want to address.

District Detail

41 Heath Street
Oakland, ME 04963

(207) 465-7384

SchoolDigger Rank:
78^th of 176 Maine districts

See the 2025 Maine District rankings!

Grades served: PK, KG-12
Students: 2,554

Primary Schools: 5
Middle Schools: 2
High Schools: 1
Alternative Schools: 0

Choose columns to see: Summary School Students/Teachers Ranking Test Scores Finance All

School													Students/Teachers											Ranking (2025)				Ranking (2024)				MEA English Language Arts (2025)	MEA Mathematics (2025)	MEA Science (2025)	Per Pupil Expenditures (2024)
Name	Type	Grades	Address	City	Zip	County	District	Is Charter	Is Magnet	Is Virtual	Is Title I	Phone	Enrollment	Full-time Teachers	Student/ Teacher Ratio	Free/Discounted Lunch Recipients	White	Black	Hispanic	Asian	American Indian	Pacific Islander	Two or More Races	Average Standard Score (2025)	Statewide Rank (2025)	State Percentile (2025)	SchoolDigger Rating (2025)	Average Standard Score (2024)	Statewide Rank (2024)	State Percentile (2024)	Rank Change from Previous Year	MEA English Language Arts All Grades	MEA Mathematics All Grades	MEA Science All Grades	Total
Messalonskee High School	Public	9-12	131 Messalonskee High Drive	Oakland	04963	Kennebec County	Regional School Unit 18	No	No	No	No	(207) 465-7381	695	49	14.1	36.1%	638 (91.8%)	5 (0.7%)	22 (3.2%)	2 (0.3%)	2 (0.3%)	1 (0.1%)	25 (3.6%)	40.9	55^th of 119 public high schools	53.8%		47.5	49^th of 121 public high schools	59.5%	6	63.0	46.7	31.0	$17,165

Districts nearby

District	Distance	# of Schools	Statewide Rank
Regional School Unit 12	4.61 mi	8	49^th
Vassalboro Public Schools	6.26 mi	1	89^th
Regional School Unit 49/Maine School Admin District 49	7.6 mi	5	140^th
Winslow Schools	8.85 mi	3	66^th
Waterville Public Schools	9.05 mi	5	151^st

See the top ME Maine districts

SchoolDigger data sources: National Center for Education Statistics, U.S. Department of Education, the U.S. Census Bureau and the Maine Department of Education.

IMPORTANT DISCLAIMERS: Not all boundaries are included. We make every effort to ensure that boundaries are up-to-date. But it's important to note that these are approximations and are for general informational purposes only. To verify legal descriptions of boundaries or school locations, contact your local tax assessor's office and/or school district.