Best Public Schools in Zip Code 04421

Summary:

The 04421 zip code is home to a single standout elementary school, Adams School, which serves grades PK-8 and has a total enrollment of 54 students. Adams School is part of the Castine Public Schools district, which is ranked 2 out of 176 districts in Maine and has a 5-star rating from SchoolDigger.

Adams School is a high-performing institution, consistently ranking among the top elementary schools in the state. In the 2024-2025 school year, the school placed 5th out of 289 schools, and it has maintained a 5-star rating from SchoolDigger. The school's students demonstrate significantly higher proficiency rates in both Mathematics and English Language Arts compared to the district and state averages, with a Mathematics proficiency rate of 81.82% and an English Language Arts proficiency rate of 77.78% in recent years.

One notable aspect of Adams School is its exceptionally low student-teacher ratio of 5.7 to 1, which likely contributes to the school's strong academic performance. However, the school does have a relatively high chronic absenteeism rate of 23.4%, which could be an area for improvement. Additionally, the school serves a relatively affluent student population, with only 5.56% of students receiving free or reduced-price lunch in 2023-2024.

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

School													Students/Teachers											Ranking (2025)				Ranking (2024)				MEA Mathematics (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 Mathematics All Grades	Total
Adams School	Public	PK, KG-8	27 School Street	Castine	04421	Hancock County	Castine Public Schools	No	No	No	Yes	(207) 326-8608	45	9	4.8	17.8%	43 (95.6%)	0 (0.0%)	0 (0.0%)	2 (4.4%)	0 (0.0%)	0 (0.0%)	0 (0.0%)	97.3	5^th of 289 public elementary schools	98.3%		92.4	18^th of 288 public elementary schools	93.8%	13	81.8	$29,085

Cities Near Zip Code 04421

City	Distance	# of Schools	Statewide Rank
Castine	0.29 mi	1	1^st
Brooksville	2.37 mi	1	159^th
Penobscot	7.01 mi	1	8^th
Sedgwick	7.27 mi	1	201^st
Searsport	7.68 mi	3	244^th

See the top ME Maine cities

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.