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Casco Bay High School

Public Grades 9-12
56th
SchoolDigger Rank ?
of 119 Maine High Schools
Better than 53% of Maine high schools
Summary

Casco Bay High School is a public high school in Portland Public Schools district, serving 381 students in grades 9-12. The school has consistently performed well on state assessments, with higher proficiency rates in English Language Arts, Mathematics, and Science compared to the district and state averages.

Casco Bay High School's academic performance has been strong, ranking as high as 12th out of Maine high schools in 2017-2018. The school's four-year graduation rate has ranged from 77.4% to 91.6% in recent years. However, Casco Bay High School faces challenges with relatively high chronic absenteeism rates, ranging from 23.4% to 29.0% in recent years, which is higher than the state average. The school's student-teacher ratio is relatively low, ranging from 12.8 to 14.1 in recent years.

Compared to nearby schools, Casco Bay High School generally outperforms other Portland Public Schools high schools, such as Portland High School and Deering High School. However, it lags behind high-performing schools in other districts, such as Scarborough High School and Greely High School, which consistently rank among the top schools in the state.

379
Students ?
13.1
Student/teacher ratio ?
$21,803
Per pupil spending ?
53.8%
Free/discounted lunch ?
 196 Allen Avenue
       Portland, ME  04103

(207) 874-8160

District: Portland Public Schools

Racial breakdown:

White:
51.5%
African American:
28.2%
Hispanic:
8.2%
more
 See top rated Maine high schools

 Compare Casco Bay High School to nearby high schools!
At a glance
Ranking trend: Declining — 65th percentile in 2013 → 53rd in 2025
Strengths
95% graduate in 4 years — above the Maine average (89%)
Above the Maine median (53rd percentile)
Worth a look
!Ranking has slipped — down 12 percentile points since 2013
!Some student groups rank well below the school's overall statewide standing
Students meeting standards (2024-2025) ?
This school49%
District avg51%
Maine avg53%
56th of 119
Maine public high schools ?
Top 47%▼ down 13 pts since 2015
From top 34% (2015) to top 47% (2025)
See the entire ranking list of Maine High Schools →
SchoolDigger rating ?
1st of 3High Schools in the Portland Public Schools
102nd of 176Portland Public Schools among Maine districts
Statewide rank percentile over time (100 = the top-ranked school in the state; click a legend item to add a student group)
Show full rank history (all student groups)

All Students

YearAvg scoreStatewide rankMaine percentileRating
202540.956 of 11952.9%★★★☆☆
202431.479 of 12134.7%★★☆☆☆
202348.743 of 12365.0%★★★☆☆
202263.835 of 9864.3%★★★☆☆
201963.531 of 11472.8%★★★★☆
201889.412 of 11489.5%★★★★★
201765.429 of 11173.9%★★★★☆
201689.211 of 11190.1%★★★★★
201539.133 of 9866.3%★★★☆☆
201355.037 of 10665.1%★★★☆☆
201288.211 of 10789.7%★★★★★
201153.344 of 10558.1%★★★☆☆
201069.023 of 10377.7%★★★★☆

African American

YearAvg scoreStatewide rankMaine percentileRating
202515.08 of 911.1%★☆☆☆☆

Female

YearAvg scoreStatewide rankMaine percentileRating
202535.567 of 10737.4%★★☆☆☆
201950.636 of 9260.9%★★★☆☆

Low Socio Economic Status

YearAvg scoreStatewide rankMaine percentileRating
202528.070 of 10835.2%★★☆☆☆
201920.265 of 7614.5%★☆☆☆☆

Male

YearAvg scoreStatewide rankMaine percentileRating
202549.830 of 10872.2%★★★★☆
201962.830 of 9267.4%★★★☆☆

White

YearAvg scoreStatewide rankMaine percentileRating
202584.04 of 5793.0%★★★★★
201991.03 of 2185.7%★★★★★
How student groups rank statewide ? (each group's percentile vs the same group at other schools — higher is better; the +/- beside each compares the group with this school's overall percentile)
White (2025)93rd percentile+40 vs school
Male (2025)72nd percentile+19 vs school
Female (2025)37th percentile-16 vs school
Low Socio Economic Status (2025)35th percentile-18 vs school
African American (2025)11th percentile-42 vs school
By subject vs Maine (2024-2025) ?
English Language Arts59%-5 vs state
Mathematics55%+5 vs state
Science28%-8 vs state

5.0
2 ratings · 2 written reviews
52
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What people are saying
by a student
Monday, October 9, 2017

Open Quote Great school! Very accepting Close Quote


by a parent
Wednesday, December 29, 2010

Open Quote This learning style may not be for every student. If your student wants a place to be welcomed, not judged by others and have the most wonderful principal and staff known to this earth, this may be the school for you. Contrary to some opinions, most students at Casco Bay High School have superior intelligence but do not fit into a "normal" mold and therefore, need not belong to a social click to thrive. This school encourages students differences and rewards them for individuality. Staff are encouraged to get to know the student as a person, not just another face. I believe this school has saved my son's life. He knows his value in the real world and has learned to dismiss the "middle school drama". Close Quote





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Frequently Asked Questions about Casco Bay High School

Students at Casco Bay High School are 51% White, 28% African American, 8% Hispanic, 6% Asian, 5% Two or more races.

Casco Bay High School ranks 56th of 119 Maine high schools. SchoolDigger rates this school 3 stars out of 5.

In the 2024-25 school year, 379 students attended Casco Bay High School.


Rate Casco Bay High School!



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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.





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